{"title":"有限温度下非守恒磁化的混合自旋三聚体（1/2,1/2,1）中的量子纠缠","authors":"Zh. A. Adamyan","doi":"10.1134/S1068337224700336","DOIUrl":null,"url":null,"abstract":"<p>A model of a molecular magnet consisting of three magnetic ions with spins (1/2, 1/2, 1) and non-conserved magnetization arising due to the heterogeneity of Lande multipliers. This study aims to explain the properties of quantum entanglement of the states of the system during magnetization (demagnetization) processes at finite temperatures. We show how the presence of inhomogeneous <i>g</i>-factors results in a significant enhancement of quantum entanglement and sometimes the expansion of the temperature range in which the spins (pseudospins) of magnetic ions of the model are in entangled states.</p>","PeriodicalId":623,"journal":{"name":"Journal of Contemporary Physics (Armenian Academy of Sciences)","volume":"59 3","pages":"279 - 286"},"PeriodicalIF":0.5000,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Quantum Entanglement in a Mixed Spin Trimer (1/2,1/2,1) with Non-Conserved Magnetization at Finite Temperatures\",\"authors\":\"Zh. A. Adamyan\",\"doi\":\"10.1134/S1068337224700336\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A model of a molecular magnet consisting of three magnetic ions with spins (1/2, 1/2, 1) and non-conserved magnetization arising due to the heterogeneity of Lande multipliers. This study aims to explain the properties of quantum entanglement of the states of the system during magnetization (demagnetization) processes at finite temperatures. We show how the presence of inhomogeneous <i>g</i>-factors results in a significant enhancement of quantum entanglement and sometimes the expansion of the temperature range in which the spins (pseudospins) of magnetic ions of the model are in entangled states.</p>\",\"PeriodicalId\":623,\"journal\":{\"name\":\"Journal of Contemporary Physics (Armenian Academy of Sciences)\",\"volume\":\"59 3\",\"pages\":\"279 - 286\"},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2025-01-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Contemporary Physics (Armenian Academy of Sciences)\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1068337224700336\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Contemporary Physics (Armenian Academy of Sciences)","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1068337224700336","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Quantum Entanglement in a Mixed Spin Trimer (1/2,1/2,1) with Non-Conserved Magnetization at Finite Temperatures
A model of a molecular magnet consisting of three magnetic ions with spins (1/2, 1/2, 1) and non-conserved magnetization arising due to the heterogeneity of Lande multipliers. This study aims to explain the properties of quantum entanglement of the states of the system during magnetization (demagnetization) processes at finite temperatures. We show how the presence of inhomogeneous g-factors results in a significant enhancement of quantum entanglement and sometimes the expansion of the temperature range in which the spins (pseudospins) of magnetic ions of the model are in entangled states.
期刊介绍：
Journal of Contemporary Physics (Armenian Academy of Sciences) is a journal that covers all fields of modern physics. It publishes significant contributions in such areas of theoretical and applied science as interaction of elementary particles at superhigh energies, elementary particle physics, charged particle interactions with matter, physics of semiconductors and semiconductor devices, physics of condensed matter, radiophysics and radioelectronics, optics and quantum electronics, quantum size effects, nanophysics, sensorics, and superconductivity.
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