Tootfinder

Ohhh, those unaccountable payment processors again.
https://www.rockpapershotgun.com/valve-explain-why-using-paypal-for-steam-purchases-isnt-currently-an-option-in-a-whole-bunch-of-countries…

Valve explain why using PayPal for Steam purchases isn't currently an option in a whole bunch of countries
Valve have explained why PayPal is currently unavailable as a Steam payment option in a number of countries around the world.

Had a phenomenal dinner at Akoko, a fine dining West African restaurant in London. French cooking and saucing techniques with Senegalese, Nigerian, and Ghanaian flavors. Also lovely front of house.
Very exciting meal, one of the best I've had in years. Run by Aji Akokomi, current chef is Mutaro Balde. These flavors are terrific and don't normally get the fine dining treatment, a real pleasure to enjoy.
Everything was great but our favorite dish was thin ribbons of squid in a sauce with coriander and a meaningful chile heat.

Coherent control of interacting solid-state spins below the diffraction limit
Haitong Xu, Mehmet T. Uysal, Lukasz Dusanowski, Adam Turflinger, Ashwin Boddeti, Joseph Alexander, Jeff D. Thompson
https://arxiv.org/abs/2508.09122

Coherent control of interacting solid-state spins below the diffraction limit
Optically addressed atomic defects in the solid-state are widely used as single-photon sources and memories for quantum network applications. The solid-state environment allows for a high density of electron and nuclear spins with the potential to form registers for coherent information processing. However, it is challenging to reliably address individual spins at nanometer separations where interactions are large. Rare-earth ions offer a unique solution, as their narrow homogeneous optical lin…

Charlie Kirk in his own words: ‘prowling Blacks’ and ‘the great replacement strategy’;
The far-right commentator didn’t pull his punches when discussing his bigoted views on current events
https://www.theguardian.com/us-news/2025/sep/11/charlie-kirk-quotes-bel…

Critical edge sets in vertex-critical graphs
Ema Skottova, Raphael Steiner
https://arxiv.org/abs/2508.08703 https://arxiv.org/pdf/2508.08703

Critical edge sets in vertex-critical graphs
Criticality is a fundamental notion in graph theory that has been studied continually since its introduction in the early 50s by Dirac. A graph is called $k$-vertex-critical ($k$-edge-critical) if it is $k$-chromatic but removing any vertex (edge) lowers the chromatic number to $k-1$. A set of edges in a graph is called critical if its removal reduces the chromatic number of the graph. In 1970, Dirac conjectured a rather strong distinction between the notions of vertex- and edge-criticality, …

Statistics of Current and Vorticity Structures in Relativistic Turbulence
Zachary Davis, Luca Comisso, Colby Haggerty, Joonas N\"attil\"a
https://arxiv.org/abs/2510.09126

Statistics of Current and Vorticity Structures in Relativistic Turbulence
Coherent structures created through turbulent cascades play a key role in energy dissipation and particle acceleration. In this work, we investigate both current and vorticity sheets in 3D particle-in-cell simulations of decaying relativistic turbulence in pair plasma by training a self-organizing map to recognize these structures. We subsequently carry out an extensive statistical analysis to reveal their geometric and structural properties. This analysis is systematically applied across a ran…

It's hard not to conclude the current US government hates Denmark right now...
Ørsted shares sink on $9bn fundraising plan to shore up Trump-hit wind project - https://on.ft.com/412NPYE via @FT

Microscopic calculation of two-particle-two-hole meson-exchange currents in $^{40}$Ar and asymmetric scaling properties for neutrino and electron scattering
V. L. Martinez-Consentino, J. Segovia, J. E. Amaro
https://arxiv.org/abs/2509.08916

Microscopic calculation of two-particle-two-hole meson-exchange currents in $^{40}$Ar and asymmetric scaling properties for neutrino and electron scattering
We present a microscopic calculation of two particle-two hole meson exchange current response functions in asymmetric nuclei, with particular emphasis on the $^{40}$Ar nucleus. Employing a relativistic mean-field and relativistic Fermi gas framework, we compute the nuclear response for $^{40}$Ar and compare it with that of the symmetric $^{40}$Ca nucleus, analyzing the role of proton-neutron imbalance. The model incorporates distinct proton and neutron Fermi momenta to accurately capture the nu…

Beyond the Carnot limit: work extraction via an entropy battery
Liam Judd McClelland
https://arxiv.org/abs/2510.08989 https://arxiv.org/pdf/2510.08989

Beyond the Carnot limit: work extraction via an entropy battery
We explore the consequences of generalized thermodynamics, as interpreted from the perspective of information theory, on an ensemble's capacity to extract energetic work. We demonstrate that by utilizing unitary heat engines of different kinds, we can capitalize on the full entropy capacity of the ensemble across multiple conserved quantities. This leads to the extraction of energetic work with efficiencies surpassing the standard Carnot efficiency limit, all the while running at maximum power.…

Dicke-Stark model, coherent state space, superradiant phase transition, equilibrium state, quantum entanglement
Weilin Wang, Ronghai Liu, Fangcheng Qiu, Mingshu Zhao, Jinying Ma, Zhanyuan Yan
https://arxiv.org/abs/2508.08860

Dicke-Stark model, coherent state space, superradiant phase transition, equilibrium state, quantum entanglement
In this study, the energy spectrum and thermal equilibrium states of the finite-size Dicke-Stark model were numerically obtained within the extended coherent state space by solving the dressed master equation for strongly coupled light-atom systems. The critical point of the superradiant phase transition in the infinite-size Dicke-Stark model was analytically derived using the mean-field approach and confirmed with numerical calculation. Under thermal equilibrium conditions, analyses of the neg…