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Twisted locality-preserving automorphisms, anomaly index, and generalized Lieb-Schultz-Mattis theorems with anti-unitary symmetries
Ruizhi Liu, Jinmin Yi, Liujun Zou
https://arxiv.org/abs/2510.06555

Twisted locality-preserving automorphisms, anomaly index, and generalized Lieb-Schultz-Mattis theorems with anti-unitary symmetries
Symmetries and their anomalies are powerful tools to understand quantum matter. In this work, for quantum spin chains, we define twisted locality-preserving automorphisms and their Gross-Nesme-Vogts-Werner indices, which provide a unified framework to describe both unitary and anti-unitary symmetries, on-site and non-on-site symmetries, and internal and translation symmetries. For a symmetry $G$ with actions given by twisted locality-preserving automorphisms, we give a microscopic definition of…

Presidents have always sent people to lead the Pentagon who respect the institutions and personnel of the armed forces,
not least because Americans tend to bristle at any sign that an administration does not unreservedly support the men and women of the U.S. military.
(Just ask Bill Clinton and Barack Obama, both of whom were castigated for such supposed disrespect.)
In his first term, Donald Trump sent General James Mattis, a veteran of wars in Iraq and Afghanistan,
…

Pete Hegseth Needs to Go—Now
A man with such contempt for the military should not run the Pentagon.

Dark characterization of Ti/Al LEKIDs for the search of axions in the W-band
Victor Rollano, Alejandro Pascual Laguna, David Rodriguez, Martino Calvo, Maria Teresa Magaz, Daniel Granados, Alessandro Monfardini, Alicia Gomez
https://arxiv.org/abs/2510.01913

Dark characterization of Ti/Al LEKIDs for the search of axions in the W-band
We report the electrical (dark) characterization of lumped-element kinetic inductance detectors (LEKIDs) fabricated from a Titanium/Aluminum bilayer and designed for broadband absorption in the W-band (75-110 GHz). These detectors are prototypes for future QCD axion search experiments within the Canfranc Axion Detection Experiment (CADEx), which demand sub 1e-19 W/Hz^0.5 sensitivities under low optical backgrounds. We combine a Mattis-Bardeen analysis to the temperature dependence of the detect…