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Talangutveckling del 2 - Specialisering och multidrottande | Podcast https://tyngre.se/podcast/tyngre-traningssnack/talangutveckling-del-2-specialisering-och-multidrottande

Emergent statistical mechanics in holographic random tensor networks
Shozab Qasim, Jens Eisert, Alexander Jahn
https://arxiv.org/abs/2508.16570 https://arx…

Emergent statistical mechanics in holographic random tensor networks
Recent years have enjoyed substantial progress in capturing properties of complex quantum systems by means of random tensor networks (RTNs), which form ensembles of quantum states that depend only on the tensor network geometry and bond dimensions. Of particular interest are RTNs on hyperbolic geometries, with local tensors typically chosen from the unitary Haar measure, that model critical boundary states of holographic bulk-boundary dualities. In this work, we elevate static pictures of ensem…

On the computation of tensor functions under tensor-tensor multiplications with linear maps
Jeong-Hoon Ju, Susana Lopez-Moreno
https://arxiv.org/abs/2506.18713

On the computation of tensor functions under tensor-tensor multiplications with linear maps
In this paper we study the computation of both algebraic and non-algebraic tensor functions under the tensor-tensor multiplication with linear maps. In the case of algebraic tensor functions, we prove that the asymptotic exponent of both the tensor-tensor multiplication and the tensor polynomial evaluation problem under this multiplication is the same as that of the matrix multiplication, unless the linear map is injective. As for non-algebraic functions, we define the tensor geometric mean and…

That shithead Palmer Luckey is considering making fully US-made laptops and wants to know if people would spend 20% more for an American made laptop. Sure, Palmer. But not for your racist ass. I'd never give you a cent https…

Palmer Luckey considering entering laptop market with fully US-made model, wants to know if you'd spend 20% more for an American-made PC
It seems Luckey's military technology startup is considering a product slightly different from its current portfolio.

🇺🇦 Auf radioeins läuft...
Dion & The Belmonts:
🎵 A teenager in love
#NowPlaying #Dion #TheBelmonts
https://bestsongbackingtracks.bandcamp.com/track/a-teenager-in-love-dion-the-belmonts-guitar-backing-track-in-c
https://open.spotify.com/track/0QGwOFQChzflLAmPq5NwKo

UK sanctions 135 Russian oil tankers, 2 firms linked to shadow fleet: https://benborges.xyz/2025/07/21/uk-sanctions-russian-oil-tankers.html

Efficient optimization of variational tensor-network approach to three-dimensional statistical systems
Xia-Ze Xu, Tong-Yu Lin, Guang-Ming Zhang
https://arxiv.org/abs/2506.19339

Efficient optimization of variational tensor-network approach to three-dimensional statistical systems
Variational tensor network optimization has become a powerful tool for studying classical statistical models in two dimensions. However, its application to three-dimensional systems remains limited, primarily due to the high computational cost associated with evaluating the free energy density and its gradient. This process requires contracting a triple-layer tensor network composed of a projected entangled pair operator and projected entangled pair states. In this paper, we employ a split corn…

Gravitational currents and charges from conformal Killing-Yano tensors
Chris Hull, Ulf Lindstr\"om, Maxwell L. Vel\'asquez Cotini Hutt
https://arxiv.org/abs/2508.16723 …

Gravitational currents and charges from conformal Killing-Yano tensors
We construct a set of higher-form conserved currents on spacetimes admitting conformal Killing-Yano tensors. We find relations between these currents that allow the charge given by integrating one of these currents over a region to be re-expressed as an integral of a covariant quantity over the boundary. In many cases, only a non-covariant form of the boundary integral was previously known. For a special class of these currents the conservation does not rely on field equations, so they give con…

Statistics-encoded tensor network approach in disordered quantum many-body spin chains
Hao Zhu, Ding-Zu Wang, Shi-Ju Ran, Guo-Feng Zhang
https://arxiv.org/abs/2508.16286 https:/…

Statistics-encoded tensor network approach in disordered quantum many-body spin chains
Simulating the dynamics of quantum many-body systems with disorder is a fundamental challenge. In this work, we propose a general approach -- the statistics-encoded tensor network (SeTN) -- to study such systems. By encoding disorder into an auxiliary layer and averaging separately, SeTN restores translational invariance, enabling a well-defined transfer matrix formulation. We derive a universal criterion, $n \gg α^2 t^2$, linking discretization $n$, disorder strength $α$, and evolution durat…

A parametric tensor ROM for the shallow water dam break problem
Md Rezwan Bin Mizan, Maxim Olshanskii, Ilya Timofeyev
https://arxiv.org/abs/2506.20007 http…

A parametric tensor ROM for the shallow water dam break problem
We develop a variant of a tensor reduced-order model (tROM) for the parameterized shallow-water dam-break problem. This hyperbolic system presents multiple challenges for model reduction, including a slow decay of the Kolmogorov $N$-width of the solution manifold, shock formation, and the loss of smooth solution dependence on parameters. These issues limit the performance of traditional Proper Orthogonal Decomposition based ROMs. Our tROM approach, based on a low-rank tensor decomposition, buil…