Tootfinder

Traveling supersolid stripe patterns in spin-orbit-coupled Bose-Einstein condensates
G. I. Martone, G. V. Shlyapnikov
https://arxiv.org/abs/2506.07322 http…

Traveling supersolid stripe patterns in spin-orbit-coupled Bose-Einstein condensates
We consider a traveling supersolid stripe pattern in a spin-orbit-coupled Bose gas. This configuration is associated with an unequal occupation of the two single-particle energy minima, giving rise to a chemical potential difference that sets the fringe velocity. Unlike stationary stripes, the moving pattern is spin-polarized, with decreasing contrast as momentum increases, eventually leading to stripe melting and transition to the uniform plane-wave phase. The Bogoliubov spectrum of the moving…

Cameras ready, transit riders!
On Wednesday morning (3/12), buses from nearly a dozen local agencies will be lined up outside the Capitol including CATA, SMART, MTA Flint, TheRide, The Rapid, Saginaw STARS, Holland MAX, and several rural providers. Join us in Lansing 🚍

Trump Bans Citizens of 12 Countries From Traveling to U.S. (Michelle Hackman/Wall Street Journal)
https://www.wsj.com/politics/policy/trump-bans-citizens-of-12-countries-from-traveling-to-u-s-ba0b6b65?st=pEjNp3&reflink=article_copyURL_share
http://www.memeorandum.com/250605/p66#a250605p66

The Line Traveling Salesman and Repairman Problem with Collaboration
Julian Golak, Finn S\"orensen, Malte Fliedner
https://arxiv.org/abs/2506.04127 ht…

The Line Traveling Salesman and Repairman Problem with Collaboration
In this work, we consider extensions of both the Line Traveling Salesman and Line Traveling Repairman Problem, in which a single server must service a set of clients located along a line segment under the assumption that not only the server, but also the clients can move along the line and seek to collaborate with the server to speed up service times. We analyze the structure of different problem versions and identify hard and easy subproblems by building up on prior results from the literature…

On the orbital stability of periodic snoidal waves for the $\phi^4-$equation
B. S. Lonardoni, F. Natali
https://arxiv.org/abs/2506.05547 https://

On the orbital stability of periodic snoidal waves for the $ϕ^4-$equation
The main purpose of this paper is to investigate the global well-posedness and orbital stability of odd periodic traveling waves for the $ϕ^4$-equation in the Sobolev space of periodic functions with zero mean. We establish new results on the global well-posedness of weak solutions by combining a semigroup approach with energy estimates. As a consequence, we prove the orbital stability of odd periodic waves by applying a Morse index theorem to the constrained linearized operator defined in the…

🇺🇦 #NowPlaying on KEXP's #Early
Traveling Wilburys:
🎵 Handle With Care
#TravelingWilburys
https://awksymoron.bandcamp.com/track/traveling-wilburys-handle-with-care
https://open.spotify.com/track/1vQxicuNSODoBECPMFjHMG

Last preparations for the upcoming International Semantic Web Research Summer School 2025, before traveling the last leg of the journey from Bologna to Bertinoro tomorrow.
@… #semweb #semanticweb

A Multiscale Eulerian Vlasov-Rosenbluth-Fokker-Planck Algorithm for Thermonuclear Burning Plasmas
Benjamin L. Reichelt, William T. Taitano, Brett D. Keenan, Luis Chacon, Andrei N. Simakov, Steven E. Anderson, Hans R. Hammer
https://arxiv.org/abs/2506.06672

A Multiscale Eulerian Vlasov-Rosenbluth-Fokker-Planck Algorithm for Thermonuclear Burning Plasmas
Accurate treatment of energetic fusion byproducts in laboratory plasmas often requires a kinetic description, owing to their large birth kinetic energy and long mean-free-paths compared with the characteristic system scale lengths. For example, alpha particles produced by deuterium--tritium fusion reactions are born at high energies (\SI{3.5}{MeV}) and predominantly slow down through interactions with electrons traveling at comparable speeds. As an alpha particle slows, its distribution collaps…

Traveling on a Swiss train while listening to The Chemical Brothers' "Star Guitar" is like being in the actual videoclip https://www.youtube.com/watch?v=0S43IwBF0uM

Bacterial Chemotaxis in a Traveling Wave Attractant Environment
Shobhan Dev Mandal, Sakuntala Chatterjee
https://arxiv.org/abs/2506.04702 https://

Bacterial Chemotaxis in a Traveling Wave Attractant Environment
We study single cell E.coli chemotaxis in a spatio-temporally varying attractant environment. Modeling the attractant concentration in the form of a traveling sine wave, we measure in our simulations, the chemotactic drift velocity of the cell for different propagation speed of the attractant wave. We find a highly non-trivial dependence where the chemotactic drift velocity changes sign, and also shows multiple peaks. For slowly moving attractant wave, drift velocity is negative, i.e. the drift…

This https://arxiv.org/abs/2505.01214 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

A Warm-start QAOA based approach using a swap-based mixer for the TSP: theoretical considerations,implementation and experiments
This paper investigates quantum heuristics based on Mixer Hamiltonians, which allow the search to be restricted to a specific subspace and enable warm-start strategies for solving the Traveling Salesman Problem (TSP). Approaches involving Mixer Hamiltonians can be integrated into the Quantum Approximate Optimization Algorithm (QAOA), where the Mixer acts as a mapping function that transforms qubit strings into feasible solution sets. We first introduce a swap-based mixer tailored to the TSP, wh…

#NowPlaying - traveling the spaceways with a 20 arkestra in summer '76. sounds from the outer territories but also the start of their terrestrial rebound, featuring their earliest known performance of "take the a-train" according to the "earthly recordings..." discography. @…

This https://arxiv.org/abs/2502.05221 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Blackout DIFUSCO
This study explores the integration of Blackout Diffusion into the DIFUSCO framework for combinatorial optimization, specifically targeting the Traveling Salesman Problem (TSP). Inspired by the success of discrete-time diffusion models (D3PM) in maintaining structural integrity, we extend the paradigm to a continuous-time framework, leveraging the unique properties of Blackout Diffusion. Continuous-time modeling introduces smoother transitions and refined control, hypothesizing enhanced solutio…

This https://arxiv.org/abs/2308.14124 has been replaced.
link: https://scholar.google.com/scholar?q=a

The APX-hardness of the Traveling Tournament Problem
The Traveling Tournament Problem (TTP-$k$) is a well-known benchmark problem in sports scheduling, which asks us to design a double round-robin schedule such that each pair of teams plays one game in each other's home venue, no pair of teams plays each other on two consecutive days, each team plays at most $k$ consecutive home games or away games, and the total traveling distance of all the $n$ teams is minimized. TTP-$k$ allows a polynomial-time approximation scheme when $k=2$ and becomes APX-…

Canadians, please confirm this is valid
EDIT: Added in better alt text

🇺🇦 #NowPlaying on KEXP's #VarietyMix
Grouper:
🎵 Traveling Through a Sea
#Grouper
https://grouper.bandcamp.com/track/traveling-through-a-sea
https://open.spotify.com/track/5uOBRzLWxGnE564iW0PF7y

Trump Bans Citizens of 12 Countries From Traveling to U.S. (Michelle Hackman/Wall Street Journal)
https://www.wsj.com/politics/policy/trump-travel-ban-announced-12-countries-ba0b6b65
http://www.memeorandum.com/250605/p73#a250605p73

Gravity driven traveling bore wave solutions to the free boundary incompressible Navier-Stokes equations
Noah Stevenson, Ian Tice
https://arxiv.org/abs/2505.24562

Gravity driven traveling bore wave solutions to the free boundary incompressible Navier-Stokes equations
We give the first mathematical construction of two-dimensional traveling bore wave solutions to the free boundary incompressible Navier-Stokes equations for a single finite depth layer of constant density fluid. Our construction is based on a rigorous justification of the formal shallow water limit, which postulates that in a certain scaling regime the full free boundary traveling Navier-Stokes system of PDEs reduces to a governing system of ODEs. We find heteroclinic orbits solving these ODEs …

A Tale of Two Shocks
Robert F. Wimmer-Schweingruber, Domenico Trotta, Rungployphan Kieokaew, Liu Yang, Alexander Kollhoff, Lars Berger, Patrick K\"uhl, Stephan I. B\"ottcher, Bernd Heber, Philippe Louarn, Andrey Fedorov, Javier Rodriguez-Pacheco, Ra\'ul G\'omez-Herrero, Francisco Espinosa Lara, Ignacio Cernuda, Yulia Kartavykh, Linghua Wang, George C. Ho, Robert C. Allen, Glenn M. Mason, Zheyi Ding, Andrea Larosa, G. Sindhuja, Sandra Eldrum, Sebastian Fleth, David Lar…

A Tale of Two Shocks
It was the best of times, it was the worst of times, . . . - for the thermal/suprathermal particle populations in the vicinity of two traveling interplanetary shocks observed by Solar Orbiter on 2023-11-29 07:51:17 UTC and 2023-11-30 10:47:26 UTC at $\sim 0.83$ astronomical units from the Sun. We investigate these two very dissimilar shocks and elucidate their non-equilibrium features. We do not provide explanations of all observed features, our aim is to report them here for future reference…

There is a reason I use Flighty when I’m traveling. It predicts delays sooner than the airline apps do. Helps keep me informed.

This https://arxiv.org/abs/2506.01705 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csIR_…

SPOT-Trip: Dual-Preference Driven Out-of-Town Trip Recommendation
Out-of-town trip recommendation aims to generate a sequence of Points of Interest (POIs) for users traveling from their hometowns to previously unvisited regions based on personalized itineraries, e.g., origin, destination, and trip duration. Modeling the complex user preferences--which often exhibit a two-fold nature of static and dynamic interests--is critical for effective recommendations. However, the sparsity of out-of-town check-in data presents significant challenges in capturing such us…

I want to make clear that all the mice trapped in my captivating series of YouTube mousetrap videos are not harmed in any way. They are all sent to live on a farm upstate, traveling on little mouse Trailways buses.

This https://arxiv.org/abs/2412.12810 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nli…

Traveling Bubbles and Vortex Pairs within Symmetric 2D Quantum Droplets
We disclose a class of stable nonlinear traveling waves moving at specific constant velocities within symmetric two-dimensional quantum droplets. We present a comprehensive analysis of these traveling bubbles and identify three qualitatively distinct regions within the one-parameter family of solutions, classified by velocity: (i) well-separated phase singularities at low velocity, (ii) singularities within the same density dip at intermediate velocity, and (iii) rarefaction pulses without sing…

Traveling waves for a two-phase Stefan problem with radiation
Elena Dematt\`e, Juan J. L. Vel\'azquez
https://arxiv.org/abs/2506.01821 https://

Traveling waves for a two-phase Stefan problem with radiation
In this paper we study the existence of traveling wave solutions for a free-boundary problem modeling the phase transition of a material where the heat is transported by both conduction and radiation. Specifically, we consider a one-dimensional two-phase Stefan problem with an additional non-local non-linear integral term describing the situation in which the heat is transferred in the solid phase also by radiation, while the liquid phase is completely transparent, not interacting with radiatio…

Where have the trees gone ?
I have been traveling on the Delhi - Dehradun highway since college. For the last decade I have been driving on that road.
New roads are coming up. Faster travel time.
Earlier the road sides had trees. They provide shade in the extreme summers. Now there is nothing but a paved road. You cannot even get off it as it's a highway if you wanted to stop.
I am wondering what is the impact of this ? Already the heat is increasing year on ye…

This https://arxiv.org/abs/2412.16712 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Strong deflection of massive particles in spherically symmetric spacetimes
Near a gravitating compact object, massive particles traveling along timelike geodesics are gravitationally deflected similarly to light. In this paper, we study the deflection angles of these particles in the strong deflection limit. This analytical approximation applies when particles in unbound orbits approach the compact object very closely, circle around it at a radius close to that of the unstable circular orbit, and eventually escape. While previous studies have provided results for part…

This https://arxiv.org/abs/2308.13301 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csGT_…

On Incentivizing Social Information Sharing Through Routing Games
Crowdsourcing services, such as Waze, leverage a mass of mobile users to learn massive point-of-interest (PoI) information while traveling and share it as a public good. Given that crowdsourced users mind their travel costs and possess various preferences over the PoI information along different paths, we formulate the problem as a novel non-atomic multi-path routing game with positive network externalities among users in social information sharing. In the absence of any incentive design, our p…

Learning to crawl: benefits and limits of centralized vs distributed control
Luca Gagliardi, Agnese Seminara
https://arxiv.org/abs/2506.02766 https://

Learning to crawl: benefits and limits of centralized vs distributed control
We present a model of a crawler consisting of several suckers distributed along a straight line and connected by springs. Both proprioception and control are binary: the system responds to the elongation vs compression of its springs and the suckers can either adhere or remain idle. A central pattern generator delivers a traveling wave of compression, and the crawler is tasked to learn how to control adhesion to effectively ride the wave in order to crawl. We ask what are the benefits and limit…

Looking forward to it!
https://mastodon.social/@karlgroves/114534519629700177

SPOT-Trip: Dual-Preference Driven Out-of-Town Trip Recommendation
Yinghui Liu, Hao Miao, Guojiang Shen, Yan Zhao, Xiangjie Kong, Ivan Lee
https://arxiv.org/abs/2506.01705

SPOT-Trip: Dual-Preference Driven Out-of-Town Trip Recommendation
Out-of-town trip recommendation aims to generate a sequence of Points of Interest (POIs) for users traveling from their hometowns to previously unvisited regions based on personalized itineraries, e.g., origin, destination, and trip duration. Modeling the complex user preferences--which often exhibit a two-fold nature of static and dynamic interests--is critical for effective recommendations. However, the sparsity of out-of-town check-in data presents significant challenges in capturing such us…

Stokes Waves in Water of Finite Depth
Eleanor Byrnes, Bernard Deconinck, Anastassiya Semenova
https://arxiv.org/abs/2506.03436 https://

Stokes Waves in Water of Finite Depth
Periodic water waves of permanent form traveling at constant speed, the so-called Stokes waves, are studied in water of fixed finite depth using methods previously used in water of infinite depth. We apply our methods to waves of varying steepness over a range of fixed depths in order to determine how a number of physical quantities related to the waves change as the steepness of the waves increases. Finally, we examine the Taylor sign condition for these waves, as well as the complex singulari…

This https://arxiv.org/abs/2406.11379 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

On existence of Sadovskii vortex patch: A touching pair of symmetric counter-rotating uniform vortex
The Sadovskii vortex patch is a traveling wave for the two-dimensional incompressible Euler equations consisting of an odd symmetric pair of vortex patches touching the symmetry axis. Its existence was first suggested by numerical computations of Sadovskii in [J. Appl. Math. Mech., 1971], and has gained significant interest due to its relevance in inviscid limit of planar flows via Prandtl--Batchelor theory and as the asymptotic state for vortex ring dynamics. In this work, we prove the existen…

Wideband Glide-Symmetric Slow-Wave Structure for Millimeter-Wave Sheet Beam TWTs
Robert Marosi, Muhammed Zuboraj, Filippo Capolino
https://arxiv.org/abs/2505.22927

Wideband Glide-Symmetric Slow-Wave Structure for Millimeter-Wave Sheet Beam TWTs
We introduce a slow-wave structure (SWS) for a millimeter-wave sheet-beam traveling-wave tube (TWT) with wide bandwidth. The wideband and stable operation is enabled through the topological properties associated with glide-symmetry that close the bandgap at the $3π$-point and also make the on-axis interaction impedance negligible for the backward wave. This space harmonic structure is designed to operate in the $V$-band over 55-68 GHz with synchronism to a 5.2 kV, 11 mA sheet electron beam tha…

This https://arxiv.org/abs/2112.04700 has been replaced.
link: https://scholar.google.com/scholar?q=a

Asymptotic stability of sharp fronts: Analysis and rigorous computation
We investigate the stability of traveling front solutions to nonlinear diffusive-dispersive equations of Burgers type, with a primary focus on the Korteweg-de Vries-Burgers (KdVB) equation, although our analytical findings extend more broadly. Manipulating the temporal modulation of the translation parameter of the front and employing the energy method, we establish asymptotic, nonlinear, and orbital stability, provided that an auxiliary Schrödinger equation possesses precisely one bound state…

This https://arxiv.org/abs/2407.20411 has been replaced.
initial toot: https://mastoxiv.page/@a…

Investigations of electron removal processes in slow He$^{2+}$ and He$^{+}$-Ne$_2$ collisions indicate high Interatomic Coulombic Decay yield
We implement an independent-atom and independent-electron model to investigate the collision systems of He$^{2+}$ and He$^{+}$ ion projectiles impinging on a neon dimer target. The dimer is set to be stationary at its equilibrium bond length with the projectile traveling parallel to the dimer axis at a speed corresponding to the collision energy of 10 keV/amu. Two approaches called multinomial and determinantal are used as an analysis of these collisions. Each of the analyses is broken down int…