A. L. Chernyshev

collaborators

6 papers

hep-ph2026

Dark matter in scale-invariant gravity with hidden-sector condensation

Juan P. Garcés, Jisuke Kubo, Manfred Lindner +1

The origin of the electroweak scale, cosmic inflation, and dark matter are often treated as independent problems beyond the Standard Models of particle physics and cosmology. In th…

cond-mat.str-el2025

Demystifying quantum escapism on the honeycomb lattice

A. L. Chernyshev

We demonstrate the versatility, simplicity, and power of the minimally-augmented spin-wave theory in studying phase diagrams of the quantum spin models in which unexpected magnetic…

cond-mat.str-el2025

The Saga of $I^\pm$ -RuCl $_{3}$ : Parameters, Models, and Phase Diagrams

Marius MÃ¶ller, P. A. Maksimov, Shengtao Jiang +3

RuCl $_{3}$ was likely the first ever deliberately synthesized ruthenium compound, following the discovery of the $_{44}$ Ru element in 1844. For a long time it was known as an oxidati…

cond-mat.str-el2025

Spontaneous magnon decays from nonrelativistic time-reversal symmetry breaking in altermagnets

Rintaro Eto, Matthias Gohlke, Jairo Sinova +3

Quasiparticles are central to condensed matter physics, but their stability can be undermined by quantum many-body interactions. Magnons, quasiparticles in quantum magnets, are par…

cond-mat.str-el2025

BaCo $_{2}$ (AsO $_{4}$ ) $_{2}$ : Strong Kitaev, After All

Pavel A. Maksimov, Shengtao Jiang, L. P. Regnault +1

The inelastic neutron scattering results and their analysis unequivocally point to a dominant Kitaev interaction in the honeycomb-lattice cobaltate BaCo $_{2}$ (AsO $_{4}$ ) $_{2}$ . Our aniso…

cond-mat.str-el2025

Phase Diagram of the Easy-Axis Triangular-Lattice $J_{1} - J_{2}$ Model

Cesar A. Gallegos, Shengtao Jiang, Steven R. White +1

The phase diagram of the $S = 1/2$ easy-axis triangular-lattice $J_{1} - J_{2}$ model is investigated using the density-matrix renormalization group and analytical insights. We fin…

Dark matter in scale-invariant gravity with hidden-sector condensation

Demystifying quantum escapism on the honeycomb lattice

The Saga of I^±-RuCl3​: Parameters, Models, and Phase Diagrams

Spontaneous magnon decays from nonrelativistic time-reversal symmetry breaking in altermagnets

BaCo2​(AsO4​)2​: Strong Kitaev, After All

Phase Diagram of the Easy-Axis Triangular-Lattice J1​−J2​ Model

The Saga of $I^\pm$ -RuCl $_{3}$ : Parameters, Models, and Phase Diagrams

BaCo $_{2}$ (AsO $_{4}$ ) $_{2}$ : Strong Kitaev, After All

Phase Diagram of the Easy-Axis Triangular-Lattice $J_{1} - J_{2}$ Model