Tootfinder

Phase structure of a holographic topological superconductor beyond the probe limit
Hoang Van Quyet
https://arxiv.org/abs/2510.05941 https://arxiv.org/pdf/2…

Phase structure of a holographic topological superconductor beyond the probe limit
We investigate tricritical phase transitions in a holographic model of topological superconductivity using Einstein-Maxwell gravity coupled with a charged scalar field in Anti-de Sitter spacetime. By incorporating both gravitational backreaction and quartic self-interaction $V(ϕ) = λϕ^4$, we demonstrate that the system exhibits both second-order and first-order phase transitions separated by a tricritical point at $(q_{\mathrm{tri}},T_{\mathrm{tri}})=(2.00\pm0.02,0.1521\pm0.0003)$ in the $(q…

On another unspecified social media, I joined a photography challenge called '52 flickers'. I'm supposed to take and post one photograph per week for the entirety of 2026. No archives, no backups, no spares, no descriptions - just a photo of any topic taken on a given week.
I typically shun this kind of challenges for millions of reasons, but since I take photos almost everyday, I decided to give it a shot. But to make it more interesting for myself, I decided not to use the most frequent categories of photos, i.e. reportage or stock.
Adding a thread here for backup purposes. Always tagging as [#]52flickers2026.
Here goes 👇
#photography #52flickers2026

@… https://grantmcphee.substack.com

Grant McPhee | Substack
Book Writer - Postcards From Scotland, co-writer Hungry Beat. Film Director - Big Gold Dream, Teenage Superstars, Far From the Apple Tree

Cryogenic growth of aluminum: structural morphology, optical properties, superconductivity and microwave dielectric loss
Wilson J. Y\'anez-Parre\~no, Teun A. J. van Schijndel, Anthony P. McFadden, Kaixuan Ji, Susheng Tan, Yu Wu, Sergey Frolov, Stefan Zollner, Raymond W. Simmonds, Christopher J. Palmstr{\o}m
https://arxiv.org/abs/2510.0…

Cryogenic growth of aluminum: structural morphology, optical properties, superconductivity and microwave dielectric loss
We explore the molecular beam epitaxy synthesis of superconducting aluminum thin films grown on c-plane sapphire substrates at cryogenic temperatures of 6 K and compare their behavior with films synthesized at room temperature. We demonstrate that cryogenic growth increases structural disorder, producing crystalline grains that modify the optical, electrical, and superconducting properties of aluminum. We observe that cryogenic deposition changes the color of aluminum from fully reflective to y…

Frieze charge-stripes in a correlated kagome superconductor CsCr$_3$Sb$_5$
Siyu Cheng, Keyu Zeng, Yi Liu, Christopher Candelora, Ziqiang Wang, Guang-Han Cao, Ilija Zeljkovic
https://arxiv.org/abs/2510.06168

Frieze charge-stripes in a correlated kagome superconductor CsCr$_3$Sb$_5$
Kagome metals have developed into a vibrant playground for materials physics, where geometric frustration, electronic correlations and band topology come together to create a variety of exotic phenomena. Recently synthesized CsCr$_3$Sb$_5$ has provided a rare opportunity to explore unconventional superconductivity in a strongly correlated kagome system with hints of frustrated magnetism and quantum criticality. Using spectroscopic imaging scanning tunneling microscopy, we reveal a cascade of de…

ARMOR: High-Performance Semi-Structured Pruning via Adaptive Matrix Factorization
Lawrence Liu, Alexander Liu, Mengdi Wang, Tuo Zhao, Lin F. Yang
https://arxiv.org/abs/2510.05528

ARMOR: High-Performance Semi-Structured Pruning via Adaptive Matrix Factorization
Large language models (LLMs) present significant deployment challenges due to their immense computational and memory requirements. While semi-structured pruning, particularly 2:4 sparsity, offers a path to practical hardware acceleration, existing methods often incur substantial performance degradation. To bridge this gap, we introduce ARMOR: (Adaptive Representation with Matrix-factORization), a novel one-shot post-training pruning algorithm. Instead of directly pruning weights, ARMOR factoriz…

Space-time geometry of small and large collision systems at LHC energies
Thomas A. Trainor
https://arxiv.org/abs/2510.05314 https://arxiv.org/pdf/2510.0531…

Space-time geometry of small and large collision systems at LHC energies
Identified-hadron (PID) spectra from 2.76 TeV Pb-Pb and $p$-$p$ collisions are analyzed via a two-component (soft + hard) model (TCM) of hadron production in high-energy nuclear collisions. The Pb-Pb TCM is adopted with minor changes from a recent analysis of PID hadron spectra from 5 TeV $p$-Pb collisions. The object of study is evidence for jet suppression in small and large collision systems as indicating quark-gluon plasma (QGP) formation there. Conventional methods have included Pb-Pb cent…

Writing software is hard, of course, and writing it for a diverse and demanding customer base is harder. The idea that CUNY-built software (much of it apparently vaporware for now) can serve the needs of a whole armada of educational stakeholders at once — well, that’s a hell of an uphill climb.
Then again…do current commercial ed tech offerings really serve needs all that well?
And as the article points out, the privacy and sovereignty benefits are •substantial•.
So: uphill climb, yes, and I for one am in favor of it.
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On a variation of selective separability: S-separability
Debraj Chandra, Nur Alam, Dipika Roy
https://arxiv.org/abs/2511.04059 https://arxiv.org/pdf/2511.04059 https://arxiv.org/html/2511.04059
arXiv:2511.04059v1 Announce Type: new
Abstract: A space $X$ is M-separable (selectively separable) (Scheepers, 1999; Bella et al., 2009) if for every sequence $(Y_n)$ of dense subspaces of $X$ there exists a sequence $(F_n)$ such that for each $n$ $F_n$ is a finite subset of $Y_n$ and $\cup_{n\in \mathbb{N}} F_n$ is dense in $X$. In this paper, we introduce and study a strengthening of M-separability situated between H- and M-separability, which we call S-separability: for every sequence $(Y_n)$ of dense subspaces of $X$ there exists a sequence $(F_n)$ such that for each $n$ $F_n$ is a finite subset of $Y_n$ and for each finite family $\mathcal F$ of nonempty open sets of $X$ some $n$ satisfies $U\cap F_n\neq\emptyset$ for all $U\in \mathcal F$.
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5. “But what are we supposed to do exactly?!” − Fight for digital sovereignty. Fight for a more independent financial system. Stop honoring US pharma patents. Form large coalitions to threaten economic sanctions. Limit travel, or increase the friction of it. Target the comfort of the billionaires who are bankrolling this. There is a long list of actions countries can take if •and only if• their populations create the political pressure for it.