{"title":"Unruh效应和最小粘度","authors":"Dmitry D. Lapygin, Georgy Yu. Prokhorov","doi":"10.1134/S1063778825600848","DOIUrl":null,"url":null,"abstract":"<p>The Minkowski vacuum is perceived by an accelerated observer as a medium with a finite temperature, which is the essence of the well-known Unruh effect. It turns out that in addition to temperature, a finite shear viscosity appears in the accelerated system, and this viscosity satisfies the lower limit from string theory <span>\\(\\eta/s=1/4\\pi\\)</span>. We describe the derivation of the corresponding shear viscosity for electromagnetic field.</p>","PeriodicalId":728,"journal":{"name":"Physics of Atomic Nuclei","volume":"88 3","pages":"506 - 512"},"PeriodicalIF":0.4000,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Unruh Effect and Minimum Viscosity\",\"authors\":\"Dmitry D. Lapygin, Georgy Yu. Prokhorov\",\"doi\":\"10.1134/S1063778825600848\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The Minkowski vacuum is perceived by an accelerated observer as a medium with a finite temperature, which is the essence of the well-known Unruh effect. It turns out that in addition to temperature, a finite shear viscosity appears in the accelerated system, and this viscosity satisfies the lower limit from string theory <span>\\\\(\\\\eta/s=1/4\\\\pi\\\\)</span>. We describe the derivation of the corresponding shear viscosity for electromagnetic field.</p>\",\"PeriodicalId\":728,\"journal\":{\"name\":\"Physics of Atomic Nuclei\",\"volume\":\"88 3\",\"pages\":\"506 - 512\"},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2025-10-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics of Atomic Nuclei\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1063778825600848\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Atomic Nuclei","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063778825600848","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
The Minkowski vacuum is perceived by an accelerated observer as a medium with a finite temperature, which is the essence of the well-known Unruh effect. It turns out that in addition to temperature, a finite shear viscosity appears in the accelerated system, and this viscosity satisfies the lower limit from string theory \(\eta/s=1/4\pi\). We describe the derivation of the corresponding shear viscosity for electromagnetic field.
期刊介绍:
Physics of Atomic Nuclei is a journal that covers experimental and theoretical studies of nuclear physics: nuclear structure, spectra, and properties; radiation, fission, and nuclear reactions induced by photons, leptons, hadrons, and nuclei; fundamental interactions and symmetries; hadrons (with light, strange, charm, and bottom quarks); particle collisions at high and superhigh energies; gauge and unified quantum field theories, quark models, supersymmetry and supergravity, astrophysics and cosmology.