Tootfinder

Liveticker: Alle Neuigkeiten von Apples WWDC-Keynote 2024
Am Montag ab 19 Uhr findet Apples Präsentation zu Neuerungen in iOS 18, macOS 15 und Co. statt. Kommt die große KI-Strategie? Wir berichten im Minutenprotokoll.

Before you head out for the weekend, check out today's Metacurity for the most critical infosec developments you should know, including
--Fears over Recall feature deepen after researcher knocks down Microsoft's last remaining defense
--500 Snowflake credentials found linked to info-stealing malware,
--FCC launches BGP NPRM,
--Ukrainian man busted thanks to Operation Endgame,
--New campaign seeks to steal Ukrainian military info,
--Panasonic Australia hit by Akira ransomware attack,
--Daixin Team claims ransomware attack on city of Dubai,
--Third-party breach exposes 1.9m CoinGecko users,
--much more
https://www.metacurity.com/p/fears-recall-feature-deepen-researcher-knocks-microsofts-last-remaining-defense

Israeli press hoping that the far right wins in the European Union elections because... they are their friends.
https://www.mako.co.il/news-n12_magazine/781730bdada5e810/Article-2772a86dd08ef81026.htm…

אירופה שוברת ימינה: הבחירות הדרמטיות שמשנות את האיחוד
בפעם הראשונה בהיסטוריה, הקואליציה שתשלוט בפרלמנט האירופי צפויה להיות ימנית ואנטי-איסלמיסטית. "רעידת האדמה" הפוליטית ביבשת ואיך היא צפויה להשפיע על ישראל

Wow, I just send myself email from my laptop to the disroot.org server using telnet. #email

Ever wondered about starting a tech magazine? 📘 Chet Haase & Marc Reichelt share their journey creating 'fun code()', a resource for Kotlin enthusiasts. Full episode: #DeveloperMagazine

BJ Thompson, Bronny James and what to know about heart health, COVID-19 and vaccines https://www.espn.com/nba/story/_/id/39084645/bronny-james-know-heart-health-covid-19-vaccines

Bronny James and what to know about heart health, COVID-19 and vaccines - ESPN
ESPN spoke to leading cardiologists and experts about heart health in elite athletes and what links, if any, exist between cardiac issues and the COVID-19 virus and vaccine.

Can I re-upload that INDISTINCT RAP screenshot? Oh please. #TOTP

Macron: Ausbildung ukrainischer Piloten für Kampfjets startet sofort
Frankreich will sofort mit der Ausbildung von ukrainischen Piloten und Mechanikern für die zugesagten "Mirage"-Kampfflugzeuge beginnen. "Die Priorität ist, sofort mit der Ausbildung von Piloten und Mechanikern zu beginnen. Damit wird in den nächsten Tagen in Frankreich begonnen", sagte Frankreichs Staatschef Emmanuel Macron im Pari…
🔗

Frankreich will der Ukraine "Mirage"-Jets überlassen
Vor einem Treffen mit dem ukrainischen Präsidenten hat Frankreichs Staatschef Macron neue Militärhilfen angekündigt. Sein Land wolle "Mirage"-Kampfflugzeuge abgeben. Außerdem sollen 4.500 ukrainische Soldaten in Frankreich ausgebildet werden.

Once the new bike shows up, I just need to put the old bike up for sale.

This https://arxiv.org/abs/2405.14872 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Replica Wormholes and Entanglement Islands in the Karch-Randall Braneworld
The Karch-Randall braneworld provides a natural set-up to study the Hawking radiation from a black hole using holographic tools. Such a black hole lives on a brane and is highly quantum yet has a holographic dual as a higher dimensional classical theory that lives in the ambient space. Moreover, such a black hole is coupled to a nongravitational bath which is absorbing its Hawking radiation. This allows us to compute the entropy of the Hawking radiation by studying the bath using the quantum ex…

Période : en semaine, le soir Š partir de 22h. Dates : du lundi 03 juin au vendredi 28 juin 2024 (sauf la semaine du lundi 10 juin au vendredi 14 juin ainsi que le vendredi 21 juin 2024). Le trafic est interrompu entre La Défense et La Verrière dans les 2 sens. Un service de bus de remplacement est mis en place, avec desserte des gares intermédiaires. Dernier départ de La Défense pour la Verrière: 22h15.
Dernier départ de La Verrière pour La Défense: 21h20. Les horaires du calculateur d…

In etwas über zwei Wochen geht’s wieder los. #radreise
Und so langsam beginnen wieder die Gedanken: soll ich, soll ich nicht, soll ich, soll ich nicht, …
Die Familie ist das schon gewohnt mit mir und geht damit sehr relaxt um, weil ich immer fahre.
#preRadreiseGefühle

#Kussbrücke im Verlauf des #Weserradweg im Juni für 3 Wochen gesperrt.
Eine frühzeitige Instandsetzung von Brücken ist sicher sinnvoll. Ob der Zeitpunkt mitten in der Hauptradsaison auf dem beliebtesten

The world pre-Starlink…

The looming Manifest V2 deprecation is a reminder of just how important browser diversity and user choice is for a healthy web
Use #webextensions, become ungovernable

A conta dos gritos é mesmo útil.
(cc @…)

heise | Was mobile Klimaanlagen leisten: Drei Kühl-Geräte im Praxistest​
Wenn es in der Wohnung unerträglich heiß wird, versprechen mobile Klimaanlagen rasche Abhilfe. Wir haben uns drei Geräte genauer angesehen.

After – Chapter 19
Posting resumes for AFTER, my free post-apoc serial with Chapter 19. Ciera and Adam start searching for Hannah. #FreeFictionFriday
https://www.bobmuellerwriter.com/after-cha

After - Chapter 19 – Bob Mueller
Posting resumes for AFTER, my free post-apoc serial. Ciera and Adam start searching Doylestown for Hannah. Why did she leave her apartment?

5/6
To encapsulate, the multi-dimensional benefits of catechins – from fostering heart health and weight management to quelling inflammation – paint a vivid picture of their vital role in our health paradigm. As we continue to unveil the myriad potentials of catechins, it becomes clear that incorporating them into our diet can yield substantial health dividends. Each sip of green tea is not merely a beverage but a testament to enduring health. 🍵💪

I eMailed my sister a link to a Neuromatch post:
https://neuromatch.social/@LukaszOlejnik@mastodon.social/112565273306362313
Her response (from Windows 10):
"My security software (TrendMicro which I do keep up-to-date) said th…

Particles and their fluids in $f(R,T)$ gravity
P. P. Avelino
https://arxiv.org/abs/2406.04335 https://arxiv.org/pdf/2406.04335…

Particles and their fluids in $f(R,T)$ gravity
According to the von Laue condition, the volume-averaged pressure inside particles of fixed mass and structure vanishes in the Minkowski limit of general relativity. Here we show that this condition is in general not fulfilled in the context of $f(R,T)$ gravity, or of other theories of gravity in which the linear momentum is not conserved in this limit (here, $R$ and $T$ represent the Ricci scalar and the trace of the energy-momentum tensor, respectively). In particular, we show that dust -- a …

Die jüngste Kandidatin in Europa fürs EU Parlament macht grad ein Ask Me Anything auf Reddit (und natürlich immer auch AbgoerdnetenWatch sowie hier auf Mastodon) schaut gerne vorbei! Auf r/gekte :trans_heart: :progresspride_i_flag:
:reddit: https://www.reddit.com/r/gekte/s/N6WpHfN2S

Es ist krass, wieviel #NotAllMen hier ausgespuckt wird, wenn es darum geht, wieviele Frauen von Männern umgebracht werden.
Hallo?!? Wie wär's, wenn Ihr einfach darüber nachdenkt, dass das eine ganz furchtbare Situation ist? Und dass sich das ändern muss? Die Zahlen sind auf dem Tisch, da gibt's nichts zu diskutieren.
Und wenn Ihr versucht, das wegzureden, dann stellt sich …

Adobe faces a backlash over its terms of service that say Adobe may access user content via "automated and manual methods" to improve its services and software (Carl Franzen/VentureBeat)
https://venturebeat.com/ai/adobe-respo…

Adobe responds to vocal uproar over new Terms of Service language
Sources close to Adobe noted that the company did not and could technically not analyze Adobe file formats saved locally.

Care for a cookie?

In loving memory.
#photography

marvel_partnerships: Marvel character partnerships (2018)
A network of partnerships among characters in the Marvel comic book universe. Nodes are either heroes or villains, and edges represent partnerships between such characters. The partnership network was extracted from Wikipedia pages of these characters, which indicate partnership relations with other such pages.
This network has 350 nodes and 346 edges.
Tags: Social, Fictional, Unweighted

wow, my thermoregulation is *fucked*

@… we’ve all been there 😅

Wenn ich so auf meine Bewegungsstatistik gucke, fühle ich mich vom Berliner "Auto über alles" Senat echt voll abgeholt.

I really liked Marvel's Midnight Suns, and it's free on the EGS right now, for a few days: https://store.epicgames.com/en-US/p/marvels-midnight-suns

I get quite a lot of emails asking for help ranging from letters of support to requests to discuss ideas. But actually they usually sound like:
Dear Ruth, I really want to work in Greenland but it's a condition of my funding that I include local people institutes. None of whom I know. Please can you share all your contacts ideas with me so I can go and do the research you also want to do using the ideas we've discussed together, without sharing any of my funding with you?
#AcademicChatter

Bis Sonntag findet die Nebula-Konferenz statt und meine Beiträge könnten zahlreich und mono-thematisch sein. Wer davon nichts hören möchte, setzt den Hashtag #Nebulas2024 am besten auf Mute.

Dishonoring D‑Day: MAGA Republicans Choose Putin Over Patriots
https://thedemlabs.org/2024/06/06/dishonoring-d-day-maga-republicans-choose-putin-over-patriots/

Dishonoring D-Day: MAGA Republicans Choose Putin Over Patriots
Republicans claim to be patriotic, but dishonor the families of the brave who have fallen and cut veterans' benefits.

Can I re-upload that INDISTINCT RAP screenshot? Oh please. #TOTP

I made a wire transfer to the dealership that is selling me my new (to me) bike in hopes of getting it by this weekend.

This https://arxiv.org/abs/2405.11970 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Generalized $β$ and $(q,t)$-deformed partition functions with $W$-representations and Nekrasov partition functions
We construct the generalized $β$ and $(q,t)$-deformed partition functions through $W$ representations, where the expansions are respectively with respect to the generalized Jack and Macdonald polynomials labeled by $N$-tuple of Young diagrams. We find that there are the profound interrelations between our deformed partition functions and the $4d$ and $5d$ Nekrasov partition functions. Since the corresponding Nekrasov partition functions can be given by vertex operators, the remarkable connecti…

Train supprimé :
- VERI de La Défense Š 20h14, arrivée Š 20h56 Š La Verrière
Prochain train Š circuler :
-VERI de La Défense Š 20h45, arrivée Š 21h26 Š La Verrière
Risque d'affluence Š bord du train suivant.
Motif : conditions de départ non réunies.
🤖 07/06 19:57

Künstliche Intelligenz: Sag mir, was mein Hund mir sagen will
Forscher haben ein KI-Modell zur Sprachverarbeitung auf Hundegebell angesetzt. Das Ergebnis: Die Künstliche Intelligenz erfasste sogar die Stimmung der Tiere.

Posting resumes for AFTER, my free post-apoc serial with Chapter 19. Ciera and Adam start searching Doylestown for Hannah. Why did she leave her apartment? #FreeFictionFriday #SerialThriller

After - Chapter 19 – Bob Mueller
Posting resumes for AFTER, my free post-apoc serial. Ciera and Adam start searching Doylestown for Hannah. Why did she leave her apartment?

3/6
Moreover, the quest for a balanced weight is supported by catechins' ability to enhance metabolic rates and spur fat oxidation, as evidenced by studies including one in the "American Journal of Clinical Nutrition" (2009). Their thermogenic quality signals that integrating catechin-rich beverages like green tea can be a seamless yet potent addition to dietary strategies aimed at weight loss.

Gravitational reheating in Starobinsky inflation
Gl\'auber C. Dorsch, Luiz Miranda, Nelson Yokomizo
https://arxiv.org/abs/2406.04161 https://

Gravitational reheating in Starobinsky inflation
We investigate the possibility of achieving post-inflationary reheating exclusively through the gravitational interaction in Starobinsky inflation, which itself assumes nothing but gravity. We consider the possibility that the reheating sector couples to gravity via a non-minimal coupling. Our analysis is performed both in a perturbative and in a non-perturbative approach, where particle production is computed from Bogoliubov coefficients. Our findings indicate that, for sufficiently large non-…

A US federal court finds Mike Lynch not guilty of criminal charges that he duped HP into buying Autonomy for $11B in 2011; he lost a UK civil trial in 2022 (Rachel Graf/Bloomberg)
https://www.bloomberg.com/news/articles/20

Können wir nochmal über Aiwanger reden, der weiter Minister ist?
Warum nochmal geht das?
https://www.zdf.de/nachrichten/politik/deutschland/aiwanger-flugblatt-antisemitismus-vorwuerfe-100.html

I think I was annoyed

@… you’re on to something here.

This https://arxiv.org/abs/2404.15400 has been replaced.
link: https://scholar.google.com/scholar?q=a

Holographic scattering and non-minimal RT surfaces
In the AdS/CFT correspondence, the causal structure of the bulk AdS spacetime is tied to entanglement in the dual CFT. This relationship is captured by the connected wedge theorem, which states that a bulk scattering process implies the existence of $O(1/G_N)$ entanglement between associated boundary subregions. In this paper, we study the connected wedge theorem in two asymptotically AdS$_{2+1}$ spacetimes: the conical defect and BTZ black hole geometries. In these settings, we find that bulk …

Ryan Busse and Raph Graybill
Democratic candidates for Governor and Lieutenant Governor of Montana
https://open.substack.com/pub/russellrowland/p/episode-twenty-five-ryan-busse-and

Train supprimé :
- VERI de La Défense Š 20h14, arrivée Š 20h56 Š La Verrière
Prochain train Š circuler :
-VERI de La Défense Š 20h45, arrivée Š 21h26 Š La Verrière
Risque d'affluence Š bord du train suivant.
Motif : conditions de départ non réunies.
🤖 07/06 19:57

2/6
Delving into the science, research published in the "Journal of Nutrition" (2011) underscores catechins' role in dramatically slashing heart disease risk. By aiding in the reduction of LDL cholesterol and bolstering blood vessel functionality, they offer a shield against cardiovascular ailments. The essence of their power lies in combating free radicals, thereby safeguarding our hearts.

Comparing second-order gravitational self-force and effective-one-body waveforms from inspiralling, quasi-circular black hole binaries with a non-spinning primary and a spinning secondary
Angelica Albertini, Alessandro Nagar, Josh Mathews, Georgios Lukes-Gerakopoulos
https://arxiv.org/abs/2406.04108

Comparing second-order gravitational self-force and effective-one-body waveforms from inspiralling, quasi-circular black hole binaries with a non-spinning primary and a spinning secondary
We present the first comparison of waveforms evaluated using the effective-one-body (EOB) approach and gravitational self-force (GSF) theory for inspiralling black hole binaries with a non-spinning primary and a spinning secondary. This paper belongs to a series of papers comparing the EOB model TEOBResumS to GSF results, where the latter are used to benchmark the EOB analytical choices in the large-mass-ratio regime. In this work, we explore the performance of two gauge choices for the gyro-gr…

This https://arxiv.org/abs/2402.16183 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Veneziano and Shapiro-Virasoro amplitudes of arbitrarily excited strings
We extend the Veneziano and Shapiro-Virasoro amplitudes to four arbitrarily excited states in bosonic string theory. We use the formalism of coherent string states based on the Di Vecchia-Del Giudice-Fubini construction. Within the same formalism, we also analyze the three string scattering finding the covariant version of the three reggeon interaction. Then studying the factorization properties of the extended four string scattering amplitudes we identify the covariant version of the three str…

Sources: Bakkt, Intercontinental Exchange's digital-asset marketplace launched in 2018, explores a sale, after issuing a going concern warning earlier in 2024 (Bloomberg)
https://www.bloomberg.com/news/articles/20

https://www.youtube.com/watch?v=1wnE4vF9CQ4

#NutrientScience
1/6
In the whirlwind of our daily lives, prioritizing health becomes imperative, and natural compounds like catechins emerge as unsung heroes. Predominantly found in green tea, these antioxidants are a cornerstone for cardiovascular well-being, weight management, and battling inflammation – a trifecta of benefits that underscore their importance.

Le trafic est perturbé sur l'ensemble de la ligne.
Motif : affaires oubliées en gare de St Quentin
🤖 06/06 16:07

Unraveling the mysteries of wormhole formation in Rastall-Rainbow gravity: A comprehensive study using the embedding approach
Abdelghani Errehymy, Ayan Banerjee, Orhan Donmez, Mohammed Daoud, Kottakkaran Sooppy Nisar, Abdel-Haleem Abdel-Aty
https://arxiv.org/abs/2406.04049

Unraveling the mysteries of wormhole formation in Rastall-Rainbow gravity: A comprehensive study using the embedding approach
The present work looks for the possible existence of static and spherically symmetric wormhole geometries in Rastall-Rainbow gravity. Since, the Rastall-Rainbow gravity model has been constructed with the combination of Rastall theory and the gravity's rainbow formalism. Taking advantage of the Karmarkar condition for embedding class one metrics, we solve the modified field equations analytically that describe wormholes for specific choice of redshift function. For specific parameter ranges, th…

Adobe clarifies its terms, saying it does not train Firefly Gen AI models on customer content and will never assume ownership of a customer's work (Ben Lovejoy/9to5Mac)
https://9to5mac.com/2024/06/07/adobe-terms-clarified/

Adobe terms clarified: Will never own your work, or use it to train AI
A change to Adobe terms set the internet alight yesterday, after a number of pro users of the company’s apps...

This https://arxiv.org/abs/2406.02127 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

On the non-uniqueness of the energy-momentum and spin currents
The macroscopic energy-momentum and spin densities of relativistic spin hydrodynamics are obtained from the ensemble average of their respective microscopic definitions (quantum operators). These microscopic definitions suffer from ambiguities, meaning that, one may obtain different forms of symmetric energy-momentum tensor and spin tensor through pseudogauge transformations (or in other words Belinfante improvement procedure). However, this ambiguity can be removed if we obtain these currents …

Le trafic est perturbé entre La Défense et La Verrière dans les 2 sens.
Motif : panne sur les installations du gestionnaire de réseau dans le secteur de La Défense.
Un train sur deux circule.
🤖 07/06 05:42

Revisiting gravitational angular momentum and mass dipole losses in the eikonal framework
Carlo Heissenberg, Rodolfo Russo
https://arxiv.org/abs/2406.03937

Revisiting gravitational angular momentum and mass dipole losses in the eikonal framework
We review the description of classical gravitational scatterings of two compact objects by means of the eikonal framework. This encodes via scattering amplitudes both the motion of the bodies and the gravitational-wave signals that such systems produce. As an application, we combine the next-to-leading post-Minkowskian (PM) waveform derived in the post-Newtonian (PN) limit with the 4PM static loss due to the linear memory effect to reproduce known results for the total angular mometum loss in t…

4/5
Furthermore, Vitamin A is crucial for promoting proper growth and development, especially in children. Research has demonstrated that Vitamin A is essential for cell growth, differentiation, and immune function, all of which are key for healthy growth. By incorporating Vitamin A-rich foods in a child's diet, you can support their overall development.

This https://arxiv.org/abs/2406.02116 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

A clock is just a way to tell the time: gravitational algebras in cosmological spacetimes
We study the algebra of observables in semiclassical quantum gravity for cosmological backgrounds, focusing on two key examples: slow-roll inflation and evaporating Schwarzschild-de Sitter black holes. In both cases, we demonstrate the existence of a nontrivial algebra of diffeomorphism-invariant observables \emph{without} the introduction of an external clock system or the presence of any asymptotic gravitational charges. Instead, the rolling inflaton field and the evaporating black hole act a…

Simulation-based Inference for Gravitational-waves from Intermediate-Mass Binary Black Holes in Real Noise
Vivien Raymond, Sama Al-Shammari, Alexandre G\"ottel
https://arxiv.org/abs/2406.03935

Simulation-based Inference for Gravitational-waves from Intermediate-Mass Binary Black Holes in Real Noise
We present an exploratory investigation into using Simulation-based Inference techniques, specifically Flow-Matching Posterior Estimation, to construct a posterior density estimator trained using real gravitational-wave detector noise. We use this prototype estimator to investigate possible effects on parameter estimation for Intermediate-Mass Binary Black Holes, showing statistically significant reduced measurement bias. While the results do show potential for improved measurements, they also …

3/5
Another remarkable benefit of Vitamin A is its role in enhancing the immune system. Studies have indicated that Vitamin A plays a critical part in bolstering the body's defense against infections and diseases. Ensuring an adequate intake of Vitamin A can strengthen the immune response and shield the body from common illnesses.

Le trafic est ralenti entre La Défense et La Verrière dans les 2 sens.
Motif : panne sur les installations du gestionnaire de réseau.
🤖 07/06 14:42

This https://arxiv.org/abs/2406.00178 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Coulomb Branch Operator Algebras and Universal Selection Rules for $\mathcal{N}=2$ SCFTs
Coulomb branches of vacua are the most universal moduli spaces that arise in local unitary interacting 4d $\mathcal{N}=2$ superconformal field theories (SCFTs). In these theories, $1/2$-BPS primaries parameterize the Coulomb branches and form (anti-)chiral rings. We define the notion of a Coulomb branch operator algebra, $\mathcal{A}_{\mathcal{C}}$, that contains these chiral and anti-chiral rings along with infinitely many more operators and products that are less protected by supersymmetry. U…

Ringing Thick Braneworld with Finite Extra Dimension
Hai-Long Jia, Wen-Di Guo, Qin Tan, Yu-Xiao Liu
https://arxiv.org/abs/2406.03929 https://

Ringing Thick Braneworld with Finite Extra Dimension
In this work, we investigate the quasinormal modes of the Poincaré thick brane with a finite extra dimension. Unlike the case with an infinite extra dimension, the gravitational effective potential exhibits three distinct shapes within different ranges of the parameter $n$ in the warp factor: harmonic oscillator potential, Pöschl-Teller potential, and volcano-like potential. We then study various types of perturbations in this system. Utilizing a combination of analytical, semi-analytical, an…

2/5
First off, let's emphasize the significance of Vitamin A for eye health. Research has shown that Vitamin A is vital for preserving good vision, especially in low-light conditions. Studies have linked Vitamin A deficiency to night blindness and other serious eye issues. By including Vitamin A-rich foods like carrots, sweet potatoes, and spinach in your diet, you can safeguard your eyes and uphold optimal vision.

Le trafic est ralenti entre La Défense et La Verrière dans les 2 sens.
Motif : panne sur les installations du gestionnaire de réseau dans le secteur de St-Cloud.
🤖 07/06 13:10

This https://arxiv.org/abs/2405.17056 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Massive twistor worldline in electromagnetic fields
We study the (ambi-)twistor model for spinning particles interacting via electromagnetic field, as a toy model for studying classical dynamics of gravitating bodies including effects of both spins to all orders. We compute the momentum kick and spin kick up to one-loop order and show precisely how they are encoded in the classical eikonal. The all-orders-in-spin effects are encoded as a dynamical implementation of the Newman-Janis shift, and we find that the expansion in both spins can be resum…

A generalized uncertainty-inspired quantum black hole
Federica Fragomeno, Douglas M. Gingrich, Samantha Hergott, Saeed Rastgoo, Evan Vienneau
https://arxiv.org/abs/2406.03909

A generalized uncertainty-inspired quantum black hole
We derive the full spacetime metric of a generalized uncertainty-inspired quantum black hole. We examine a previous model of the interior in this approach and show that extending its metric to the full spacetime leads to serious issues in the asymptotic region. To remedy this, we introduce an "improved scheme" mimicking a similar prescription used in loop quantum gravity, where the quantum parameters are made momentum-dependent. Under this scheme, we rework the interior of the black hole and ex…

#NutrientScience
1/5
As a nutrition expert, I am thrilled to discuss the incredible health benefits of Vitamin A on LinkedIn. This crucial nutrient is essential for maintaining healthy vision, boosting the immune system, and supporting growth and development. Let's delve into the world of Vitamin A and understand why it is indispensable for our overall well-being.

Le trafic est ralenti entre La Défense et La Verrière dans les 2 sens.
Motif : panne sur les installations du gestionnaire de réseau.
🤖 07/06 14:42

This https://arxiv.org/abs/2405.15108 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Correlation functions of boundary conformal field theory
Applying the holographic method, we investigate one- and two-point correlation functions of a boundary conformal field theory. To describe boundary conformal field theory, we consider an end of the world brane in an asymptotic AdS space which behaves as a boundary of the dual conformal field theory. Using this geometry, we calculate correlation functions including the reflection effect at the boundary. We show that, when the end of the world brane has no degrees of freedom, the holographic calc…

Non-Kerr Constraints using Binary Black Hole inspirals considering phase modifications up to 4 PN order
Debtroy Das, Swarnim Shashank, Cosimo Bambi
https://arxiv.org/abs/2406.03846

Non-Kerr Constraints using Binary Black Hole inspirals considering phase modifications up to 4 PN order
The gravitational field around an astrophysical black hole (BH) is thought to be described by the Kerr spacetime, which is a solution of the Einstein equation. Signatures of binary black hole (BBH) coalescence in gravitational waves (GW) follow the Kerr spacetime as the theoretical foundation. Hence, any possible deviations from the Kerr spacetime around BHs serve as a test of the nature of gravity in the strong-field regime and of the predictions of General Relativity. In our study, we perform…

Le trafic est ralenti entre La Défense et La Verrière dans les 2 sens.
Motif : panne sur les installations du gestionnaire de réseau dans le secteur de St-Cloud.
🤖 07/06 13:10

This https://arxiv.org/abs/2312.03433 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

$T\bar{T}$ deformation on non-Hermitian two coupled SYK model
We investigate $T\bar{T}$ deformation on non-Hermitian coupled Sachdev-Ye-Kitaev (SYK) model and the holographic picture. The relationship between ground state and thermofield double state is preserved under the $T\bar{T}$ deformation. We prove that $T\bar{T}$ deformed theory provides a reparameterization in large $N$ limit. These deformation effects is calculated numerically with green functions and free energy. The thermodynamic phase structures show the equivalence of the wormhole-black hole…

New Taub-NUT Black Holes with Massive Spin-2 Hair
Yu-Qi Chen, Hai-Shan Liu
https://arxiv.org/abs/2406.03692 https://arxiv.org/pdf/240…

New Taub-NUT Black Holes with Massive Spin-2 Hair
We consider Einstein gravity extended with quadratic curvature invariants, where the well-known Ricci-flat Taub-NUT black hole remains a solution. An analysis of the unstable Lichnerowicz modes in the Taub-NUT background enables us to identify the mass and NUT parameters (m,n) where new Taub-NUT black holes can emerge. We then adopt numerical technique to construct these new Taub-NUT black holes that bifurcate away from the Ricci-flat ones. Unlike the Ricci-flat Taub-NUT, there can exist two ne…

This https://arxiv.org/abs/2312.00719 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Tidal effects and renormalization at fourth post-Minkowskian order
We determine the adiabatic tidal contributions to the radiation reacted momentum impulse $Δp_i^μ$ and scattering angle $θ$ between two scattered massive bodies (neutron stars) at next-to-next-to-leading post-Minkowskian (PM) order. The state-of-the-art three-loop (4PM) worldline quantum field theory toolkit using dimensional regularization is employed to establish the classical observables. We encounter divergent terms in the gravito-electric and gravito-magnetic quadrupolar sectors necessit…

A small cosmological constant from a large number of extra dimensions
Changjun Gao
https://arxiv.org/abs/2406.03687 https://arxiv.org…

A small cosmological constant from a large number of extra dimensions
In this article, we consider the $4+n$ dimensional spacetimes among which one is the four dimensional physical Universe and the other is an n-dimensional sphere with constant radius in the framework of Lanczos-Lovelock gravity. We find that the curvature of extra dimensional sphere contributes a huge but negative energy density provided that its radius is sufficiently small, such as the scale of Planck length. Therefore, the huge positive vacuum energy, i.e. the large positive cosmological cons…

This https://arxiv.org/abs/2311.10565 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Worldsheet Formalism for Decoupling Limits in String Theory
We study the bosonic sector of a decoupling limit of type IIA superstring theory, where a background Ramond-Ramond one-form is fined tuned to its critical value, such that it cancels the associated background D0-brane tension. The light excitations in this critical limit are D0-branes, whose dynamics is described by the Banks-Fischler-Shenker-Susskind (BFSS) Matrix theory that corresponds to M-theory in the Discrete Light-Cone Quantization (DLCQ). We develop the worldsheet formalism for the fun…

Novel Casimir wormholes in Einstein gravity
Mohammad Reza Mehdizadeh, Amir Hadi Ziaie
https://arxiv.org/abs/2406.03588 https://arxiv.…

Novel Casimir wormholes in Einstein gravity
In the context of General Relativity (GR), violation of the null energy condition (NEC) is necessary for existence of static spherically symmetric wormhole solutions. Also, it is a well-known fact that the energy conditions are violated by certain quantum fields, such as the Casimir effect. The magnitude and sign of the Casimir energy depend on Dirichlet or Neumann boundary conditions and geometrical configuration of the objects involved in a Casimir setup. The Casimir energy may act as an idea…

This https://arxiv.org/abs/2311.07507 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Scalar curvature for metric spaces: Defining curvature for Quantum Gravity without coordinates
Geometrical properties of spacetime are difficult to study in nonperturbative approaches to quantum gravity like Causal Dynamical Triangulations (CDT), where one uses simplicial manifolds to define the gravitational path integral, instead of Riemannian manifolds. In particular, in CDT one only relies on two mathematical tools, a distance measure and a volume measure. In this paper, we define a notion of scalar curvature, for metric spaces endowed with a volume measure or a random walk, without …

Tests of General Relativity with GW230529: a neutron star merging with a lower mass-gap compact object
Elise M. S\"anger, Soumen Roy, Michalis Agathos, Ofek Birnholtz, Alessandra Buonanno, Tim Dietrich, Maria Haney, F\'elix-Louis Juli\'e, Geraint Pratten, Jan Steinhoff, Chris Van Den Broeck, Sylvia Biscoveanu, Prasanta Char, Anna Heffernan, Prathamesh Joshi, Atul Kedia, R. M. S. Schofield, M. Trevor, Michael Zevin

Tests of General Relativity with GW230529: a neutron star merging with a lower mass-gap compact object
On 29 May 2023, the LIGO Livingston observatory detected the gravitational-wave signal GW230529_181500 from the merger of a neutron star with a lower mass-gap compact object. Its long inspiral signal provides a unique opportunity to test General Relativity (GR) in a parameter space previously unexplored by strong-field tests. In this work, we performed parameterized inspiral tests of GR with GW230529_181500. Specifically, we search for deviations in the frequency-domain GW phase by allowing for…

This https://arxiv.org/abs/2311.04151 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Spin and Susceptibility Effects of Electromagnetic Self-Force in Effective Field Theory
The classic Abraham-Lorentz-Dirac self-force of point-like particles is generalized within an effective field theory setup to include linear spin and susceptibility effects described perturbatively, in that setup, by effective couplings in the action. Electromagnetic self-interactions of the point-like particle are integrated out using the in-in supersymmetric worldline quantum field theory formalism. Divergences are regularized with dimensional regularization and the resulting equations of mot…

Spinning Proca-Higgs balls, stars and hairy black holes
Carlos Herdeiro, Eugen Radu, Etevaldo dos Santos Costa Filho
https://arxiv.org/abs/2406.03552 https…

Spinning Proca-Higgs balls, stars and hairy black holes
Recently, spherical and static flat space solitons (balls) and self-gravitating, everywhere regular, asymptotically flat solitons (stars) were constructed in an Einstein-Proca-Higgs model [1], where a complex vector field gains mass by coupling to a real scalar field with a Higgs-type potential. The Proca-Higgs model serves as a UV completion of a complex Proca model with self-interactions. Here, we construct and examine the mathematical and physical properties of rotating configurations. In pa…

This https://arxiv.org/abs/2310.03496 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

S-move matrix in the NS sector of $N=1$ super Liouville field theory
In this paper we calculate matrix of modular transformations of the one-point toric conformal blocks in the Neveu-Schwarz sector of $N=1$ super Liouville field theory. For this purpose we use explicit expression for this matrix as integral of product of certain elements of fusion matrix. This integral is computed using the chain of integral identities for supersymmetric hyperbolic gamma functions derived by the degeneration of the integrals of parafermionic elliptic gamma functions.

[2024-06-07 Fri (UTC), 14 new articles found for gr-qc General Relativity and Quantum Cosmology]

This https://arxiv.org/abs/2303.11105 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

$D$-Module Techniques for Solving Differential Equations in the Context of Feynman Integrals
Feynman integrals are solutions to linear partial differential equations with polynomial coefficients. Using a triangle integral with general exponents as a case in point, we compare $D$-module methods to dedicated methods developed for solving differential equations appearing in the context of Feynman integrals, and provide a dictionary of the relevant concepts. In particular, we implement an algorithm due to Saito, Sturmfels, and Takayama to derive canonical series solutions of regular holono…

This https://arxiv.org/abs/2209.03610 has been replaced.
link: https://scholar.google.com/scholar?q=a

Tunneling of Bell Particles, Page Curve and Black Hole Information
We propose that the quantum states of black hole responsible for the Bekenstein-Hawking entropy are given by a thin shell of Bell particles located at the region just underneath the horizon. We argue that the configuration can be stabilized by a new kind of degeneracy pressure which is suggested by a noncommutative geometry in the interior of the black hole. Black hole singularity is avoided. We utilize the work of Parikh and Wilczek \cite{Parikh:1999mf} to include the effect of tunneling on th…

This https://arxiv.org/abs/2406.02698 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

New Approach to Strongly Coupled N = 4 SYM via Integrability
Finding a systematic expansion of the spectrum of free superstrings on AdS5xS5, or equivalently strongly coupled N = 4 SYM in the planar limit, remains an outstanding challenge. No first principle string theory methods are readily available, instead the sole tool at our disposal is the integrability-based Quantum Spectral Curve (QSC). For example, through the QSC the first five orders in the strong coupling expansion of the conformal dimension of an infinite family of short operators have been …

This https://arxiv.org/abs/2406.02680 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

The Aharony-Bergman-Jafferis-Maldacena theory on a circle
In this letter, we bootstrapped the 4-point correlators on the 1D celestial circle using 3D symmetries in the Aharony-Bergman-Jafferis-Maldacena theory as constraints. We find that the dual inversion property is strong enough to replace the crossing symmetry condition when bootstrapping. We also give some results about the conformal block expansion coefficients which contain the spectrum and the leading multi-OPE of this celestial CFT. Finally, we find a non-local 2-particle operator from the m…

This https://arxiv.org/abs/2403.03439 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Line defect half-indices of $SU(N)$ Chern-Simons theories
We study the Wilson line defect half-indices of 3d $\mathcal{N}=2$ supersymmetric $SU(N)$ Chern-Simons theories of level $k\le -N$ with Neumann boundary conditions for the gauge fields, together with 2d Fermi multiplets and fundamental 3d chiral multiplets to cancel the gauge anomaly. We derive some exact results and also make some conjectures based on expansions of the $q$-series. We find several interesting connections with special functions known in the literature, including Rogers-Ramanujan…

This https://arxiv.org/abs/2402.06001 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Hagedorn temperature from the thermal scalar in AdS and pp-wave backgrounds
We propose a thermal scalar equation of motion (EOM) that takes into account curvature corrections for backgrounds supported by Ramond-Ramond fluxes. This can be used to obtain the Hagedorn temperature for type II string theory on AdS and pp-wave backgrounds. For Ramond-Ramond flux supported pp-waves we show that the proposed thermal scalar EOM reproduces the leading curvature correction in the Hagedorn temperature equation obtained from the type II string theory spectrum. Furthermore, we use t…

This https://arxiv.org/abs/2312.05728 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Generators of the Poincaré Group for arbitrary tensors and spinor-tensors
In this work, we systematically derive explicit expressions for the Poincaré Group generators on arbitrary-rank tensors and spinor-tensors in $D=3+1$ and $D=2+1$ spacetimes, thus generalizing previous works in the literature for the groups $ISO(3,1)$ and $ISO(2,1)$. From the Casimir eigenvalue equations, we demonstrate in a model-independent way the Fierz-Pauli constraints for massive particles for spins $\mathfrak{s}=5/2$, 3, and 4 in $D=3+1$ and helicities $α=5/2$, 3, and 4 in $D=2+1$ dimen…

This https://arxiv.org/abs/2303.17326 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Conformal integrals in all dimensions as GKZ hypergeometric functions and Clifford groups
Euclidean conformal integrals for an arbitrary number of points in any dimension are evaluated. Conformal transformations in the Euclidean space can be formulated as the Moebius group in terms of Clifford algebras. This is used to interpret conformal integrals as functions on the configuration space of points on the Euclidean space, solving linear differential equations, which, in turn, is related to toric GKZ systems. Explicit series solutions for the conformal integrals are obtained using tor…

This https://arxiv.org/abs/2010.04179 has been replaced.
link: https://scholar.google.com/scholar?q=a

Nonminimal Couplings and the Forgotten Field of Axion Inflation
We study the multifield dynamics of axion models nonminimally coupled to gravity. As usual, we consider a canonical $U(1)$ symmetry-breaking model in which the axion is the phase of a complex scalar field. If the complex scalar field has a nonminimal coupling to gravity, then the (oft-forgotten) radial component can drive a phase of inflation prior to an inflationary phase driven by the axion field. In this setup, the mass of the axion field is dependent on the radial field because of the nonmi…