Topological Spin Phases of Trapped Rydberg Excitons in

AN Poddubny, MM Glazov - Physical review letters, 2019 - APS
We theoretically study Rydberg excitons in one-dimensional chains of traps in Cu 2 O
coupled via the van der Waals interaction. The triplet of optically active p-shell states acts as …

Quantum phase transitions and the degree of nonidentity in the system with two different species of vector bosons

AM Belemuk, NM Chtchelkatchev… - New Journal of …, 2018 - iopscience.iop.org
We present new results for the system with two species of vector bosons in an optical lattice.
In addition to the standard parameters characterizing such a system, we are dealing here …

Thermodynamics of Symmetric Spin—Orbital Model: One-and Two-Dimensional Cases

VE Valiulin, AV Mikheyenkov, KI Kugel, AF Barabanov - JETP Letters, 2019 - Springer
The specific heat and susceptibilities for the two-and one-dimensional spin-orbital models
are calculated in the framework of a spherically symmetric self-consistent approach at …

The resistance of quantum entanglement to temperature in the Kugel-Khomskii model

VE Valiulin, AV Mikheyenkov, NM Chtchelkatchev… - SciPost Physics …, 2023 - scipost.org
Abstract The Kugel-Khomskii model with entangled spin and orbital degrees of freedom is a
good testing ground for many important features in quantum information processing, such as …

Quantum entanglement, local indicators, and the effect of external fields in the Kugel-Khomskii model

VE Valiulin, AV Mikheyenkov, NM Chtchelkatchev… - Physical Review B, 2020 - APS
Using the exact diagonalization technique, we determine the energy spectrum and wave
functions for finite chains described by the two-spin (Kugel-Khomskii) model with different …

Continuous transformation between ferro and antiferro circular structures in frustrated Heisenberg model

VE Valiulin, AV Mikheyenkov… - Journal of Physics …, 2019 - iopscience.iop.org
Frustrated magnetic compounds, in particular low-dimensional, are topical research due to
the persistent uncovering of novel nontrivial quantum states and potential applications. The …

Термодинамика симметричной спин-орбитальной модели: одномерный и двумерный случаи

ВЭ Валиулин, АВ Михеенков, КИ Кугель… - Письма в Журнал …, 2019 - mathnet.ru
В рамках сферически симметричного самосогласованного подхода рассчитаны
теплоемкость и восприимчивости двумерной и одномерной спин-орбитальной модели …

[PDF][PDF] Gyrate quantum states in frustrated magnetism: continuous transitions on the J1− J2− J3 globe

VE Valiulin, AV Mikheyenkov… - arxiv preprint arxiv …, 2018 - researchgate.net
Frustrated magnetic compounds, in particular, low-dimensional, are topical research due to
persistent uncover of novel nontrivial quantum states and potential applications. The …

Heteronuclear magnetisms with ultracold spinor bosonic gases in optical lattices

Y Li, C **ng, M Gong, G Guo, J Yuan - Chinese Physics Letters, 2024 - iopscience.iop.org
Motivated by recent realizations of spin-1 NaRb mixtures in the experiments [Phys. Rev. Lett.
114, 255301 (2015); Phys. Rev. Lett. 128, 223201 (2022)], we investigate heteronuclear …

МНОГОЧАСТИЧНАЯ ЗАПУТАННОСТЬ НЕТОЖДЕСТВЕННЫХ СТЕПЕНЕЙ СВОБОДЫ

А Михеенков, ВЭ Валиулин, КИ Кугель… - … твердого тела и …, 2021 - school.lpi.ru
Доклад во многом повторяет тезисы доклада-2020, не состоявшегося из-за ковида. Во-
первых, это обзор основных количественных характеристик запутанного состояния, их …