Tootfinder

Thermal phase slips in superconducting films
Mikhail A. Skvortsov, Artem V. Polkin
https://arxiv.org/abs/2506.18130 https://arxiv.org…

Thermal phase slips in superconducting films
A dissipationless supercurrent state in superconductors can be destroyed by thermal fluctuations. Thermally activated phase slips provide a finite resistance of the sample and are responsible for dark counts in superconducting single photon detectors. The activation barrier for a phase slip is determined by a space-dependent saddle-point (instanton) configuration of the order parameter. In the one-dimensional wire geometry, such a saddle point has been analytically obtained by Langer and Ambega…

DappRadar: NFT lending market volume has dropped 97% from a peak of ~$1B in January 2024 to ~$50M in May 2025, with borrower activity falling by 90% (Stephen Katte/Cointelegraph)
https://cointelegraph.com/news/real-world-assets-revitalize-dy…

On the asymptotic behavior of a higher-order extrapolation primal-dual interior-point method for nonlinear programming
Pim Heeman, Anders Forsgren
https://arxiv.org/abs/2507.01866

On the asymptotic behavior of a higher-order extrapolation primal-dual interior-point method for nonlinear programming
A trajectory-following primal--dual interior-point method solves nonlinear optimization problems with inequality and equality constraints by approximately finding points satisfying perturbed Karush--Kuhn--Tucker optimality conditions for a decreasing order of perturbation controlled by the barrier parameter. Under some conditions, there is a unique local correspondence between small residuals of the optimality conditions and points yielding that residual, and the solution on the barrier traject…

Faster Algorithm for Second (s,t)-mincut and Breaking Quadratic barrier for Dual Edge Sensitivity for (s,t)-mincut
Surender Baswana, Koustav Bhanja, Anupam Roy
https://arxiv.org/abs/2507.01366

Faster Algorithm for Second (s,t)-mincut and Breaking Quadratic barrier for Dual Edge Sensitivity for (s,t)-mincut
We study (s,t)-cuts of second minimum capacity and present the following algorithmic and graph-theoretic results. 1. Vazirani and Yannakakis [ICALP 1992] designed the first algorithm for computing an (s,t)-cut of second minimum capacity using $O(n^2)$ maximum (s,t)-flow computations. For directed integer-weighted graphs, we significantly improve this bound by designing an algorithm that computes an $(s,t)$-cut of second minimum capacity using $O(\sqrt{n})$ maximum (s,t)-flow computations w.h.…

Development of an Atomic Layer Deposition System for Deposition of Alumina as a Hydrogen Permeation Barrier
Zachary R. Robinson, Jeffrey Woodward, Alexander C. Kozen, Joshua Ruby, Tyler Liao, Luke Herter, Rashad Ahmadov, Mark D. Wittman, Matthew Sharpe
https://arxiv.org/abs/2507.00958

Development of an Atomic Layer Deposition System for Deposition of Alumina as a Hydrogen Permeation Barrier
Tritium permeation into and through materials poses a critical challenge for the development of nuclear fusion reactors. Minimizing tritium permeation is essential for the safe and efficient use of available fuel supplies. In this work, we present the design, construction, and validation of custom atomic layer deposition (ALD) and deuterium permeation measurement systems aimed at developing thin-film hydrogen permeation barriers. Using the ALD system, we deposited conformal Al2O3 films on coppe…

🇺🇦 Auf radioeins läuft...
Brandt Brauer Frick feat. Sophie Hunger:
🎵 This feeling (Radio Edit)
#NowPlaying #BrandtBrauerFrick #SophieHunger
#radioeins gespielten Titel als #Spotify Playliste: https://open.spotify.com/playlist/3hdH98B6uyXilhcWxCA6nv

Laser spectroscopy and CP-violation sensitivity of actinium monofluoride
M. Athanasakis-Kaklamanakis, M. Au, A. Kyuberis, C. Z\"ulch, K. Gaul, H. Wibowo, L. Skripnikov, L. Lalanne, J. R. Reilly, A. Koszor\'us, S. Bara, J. Ballof, R. Berger, C. Bernerd, A. Borschevsky, A. A. Breier, K. Chrysalidis, T. E. Cocolios, R. P. de Groote, A. Dorne, J. Dobaczewski, C. M. Fajardo Zambrano, K. T. Flanagan, S. Franchoo, J. D. Johnson, R. F. Garcia Ruiz, D. Hanstorp, S. Kujanp\"a\&quot…

A general relativistic hydrodynamic simulation code for studying advective, sub-Keplerian accretion flow onto black holes
Sudip K Garain
https://arxiv.org/abs/2506.01557

A general relativistic hydrodynamic simulation code for studying advective, sub-Keplerian accretion flow onto black holes
In this paper, we describe a general relativistic hydrodynamics simulation code which is developed to simulate advective accretion flow onto black holes. We are particularly interested in the accretion simulations of sub-Keplerian matter in the close vicinity of black holes. Due to the presence of centrifugal barrier, a nearly free-falling sub-Keplerian accretion flow slows down close to a black hole and can even pass through shocks before accelerating again to the black hole. We design our sim…

Signatures of rigidity and second sound in dipolar supersolids
G. A. Bougas, T. Bland, H. R. Sadeghpour, S. I. Mistakidis
https://arxiv.org/abs/2506.22290 …

Signatures of rigidity and second sound in dipolar supersolids
We propose a dynamical protocol to probe the rigidity and phase coherence of dipolar supersolids by merging initially separated fragments in quasi-one-dimensional (1D) double-well potentials. Simulations based on the extended Gross-Pitaevskii equation reveal distinct dynamical signatures across phases. Supersolids exhibit damped crystal oscillations following barrier removal, with the damping rate reflecting superfluid connectivity. A phase-imprinted jump additionally triggers metastable dark s…