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This https://arxiv.org/abs/2407.01353 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Isotropic constants and regular polytopes
We discuss first-order optimality conditions for the isotropic constant and combine them with RS-movements to obtain structural information about polytopal maximizers. Strengthening a result by Rademacher, it is shown that a polytopal local maximizer with a simplicial vertex must be a simplex. A similar statement is shown for a centrally symmetric local maximizer with a simplicial vertex: it has to be a cross-polytope. Moreover, we show that a zonotope that maximizes the isotropic constant and …

Jag upplever mer och mer att usla meta-analyser används för att få saker att framstå som etablerad vetenskap när stödet bakom påståendet egentligen är uselt. Under pandemin var det flera sidor som påstods sig ha i princip realtidsuppdaterade meta-analyser som var av den här typen och sen har det fortsatt bli vanligare, tycker jag.
The Research on Fluoride and IQ

Planck Constraints on Axion-Like Particles through Isotropic Cosmic Birefringence
Toshiya Namikawa, Kai Murai, Fumihiro Naokawa
https://arxiv.org/abs/2506.20824

Planck Constraints on Axion-Like Particles through Isotropic Cosmic Birefringence
We present constraints on isotropic cosmic birefringence induced by axion-like particles (ALPs), derived from the analysis of cosmic microwave background (CMB) polarization measurements obtained with the high-frequency channels of Planck. Recent measurements report a hint of isotropic cosmic birefringence, though its origin remains uncertain. The detailed dynamics of ALPs can leave characteristic imprints on the shape of the $EB$ angular power spectrum, which can be exploited to constrain speci…

Freezeout at constant energy density and spin polarization in heavy-ion collisions
Andrea Palermo, Masoud Shokri
https://arxiv.org/abs/2507.18761 https://a…

Freezeout at constant energy density and spin polarization in heavy-ion collisions
Using the local equilibrium density operator, we develop a geometry-informed linear response theory that takes into account the parameterization of the freezeout hypersurface before the gradient expansion is carried out. Assuming local equilibrium on an iso-energy density hypersurface, we study the $Λ$ hyperon spin polarization, and compute corrections to the isothermal case due to finite density. We argue that corrections to isothermal freezeout should be small, and that even in heavy ion col…

Magnetoelectric coupling and its impact on the multicaloric effect
Kentaro Ino, Keisuke Matsuura, Tetsuya Nomoto, Takashi Kurumaji, Yoshinori Tokura, Fumitaka Kagawa
https://arxiv.org/abs/2507.19126

Magnetoelectric coupling and its impact on the multicaloric effect
The multicaloric effect, which represents the reversible entropy change that occurs when both external magnetic and electric fields are applied, is an interesting phenomenon characteristic to multiferroics. Targeting the multicaloric effect in the typical multiferroic (Fe$_{0.95}$Zn$_{0.05}$)$_2$Mo$_3$O$_8$, we experimentally evaluate the isothermal entropy change due to a magnetoelectric cross-correlation. A pronounced cross-correlation-derived isothermal entropy change is found at the magneti…

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Bikini Kill:
🎵 Suck My Left One
#BikiniKill
https://bikinikill.bandcamp.com/track/suck-my-left-one-4
https://open.spotify.com/track/4IQY0TThr7YebYWf2X07xC

Fermi liquid and isotropic superconductivity of Hund scenario for bilayer nickelates
Jiangfan Wang, Yi-feng Yang
https://arxiv.org/abs/2507.19301 https://a…

Fermi liquid and isotropic superconductivity of Hund scenario for bilayer nickelates
Recent experiments on bulk and thin film bilayer nickelate high-$T_c$ superconductors urge for clarification of their pairing mechanism. Debates exist on whether the hybridization or the Hund's coupling between the nickel $d_{x^2-y^2}$ and $d_{z^2}$ orbitals plays a primary role in driving the superconductivity. Here, we study the Hund scenario and make comparisons with the hybridization scenario using the same dynamic Schwinger boson approach. Our calculations reveal several key features of th…

Operator Inference Aware Quadratic Manifolds with Isotropic Reduced Coordinates for Nonintrusive Model Reduction
Paul Schwerdtner, Prakash Mohan, Julie Bessac, Marc T. Henry de Frahan, Benjamin Peherstorfer
https://arxiv.org/abs/2507.20463

Micromechanics of compressive and tensile forces in partially-bonded granular materials
Abrar Naseer, Karen E. Daniels, Tejas G. Murthy
https://arxiv.org/abs/2507.19214 https://…

Micromechanics of compressive and tensile forces in partially-bonded granular materials
In granular media, the presence of even small amounts of interparticle cohesion manifests as an increase in the bulk strength and stiffness, effects that are typically associated with an increase in the average number of constraints per particle. By performing an ensemble of isotropic compression experiments, all starting from the same initial particle configuration but with varying fraction of bonded particles, we use photoelastic force measurements to identify the causes of this phenomenon at…

Numerical asymptotics of near-axis expansions of quasisymmetric magnetohydrostatic equilibria with anisotropic pressure
Lanke Fu, Eduardo Rodriguez, Rory Conlin, Amitava Bhattacharjee
https://arxiv.org/abs/2505.20475

Numerical asymptotics of near-axis expansions of quasisymmetric magnetohydrostatic equilibria with anisotropic pressure
Quasisymmetry (QS) is a property of special magnetic configurations, where the magnetic field strength, but not necessarily the full vector field, has a direction of symmetry. QS leads to reduced neoclassical transport and thus can be a desirable property in stellarator design. The Garren-Boozer (GB) conundrum has been interpreted to mean that globally quasisymmetric magnetohydrostatic (MHS) equilibria, other than axisymmetric solutions, with isotropic pressure do not exist. When expanded as po…