Eliminating the Unruh effect of relativistic Dirac fields by partial measurements

作     者：N A Khan Syed Tahir Amin Munsif Jan N A Khan;Syed Tahir Amin;Munsif Jan

作者机构：Centro de Física das Universidades do Minho e PortoDepartamento de Física e AstronomiaFaculdade de CiênciasUniversidade do Porto4169-007 PortoPortugal Departamento de FísicaInstituto Superior TécnicoUniversidade de LisboaAv.Rovisco Pais1049-001 LisboaPortugal CeFEMAInstituto Superior TécnicoUniversidade de LisboaAv.Rovisco Pais1049-001 LisboaPortugal Instituto de TelecomunicacoesLAv.Rovisco Pais1049-001 LisboaPortugal CAS Key Laboratory of Quantum InformationUniversity of Science and Technology of ChinaHefei 230026China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2020年第72卷第12期

页      面：130-136页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：supported by the INTERWEAVE project,Erasmus Mundus Action 2 Strand 1 Lot 11,EACEA/42/11 Grant Agreement 2013-2538/001-001 EM Action 2 Partnership Asia-Europe,Fundacao da Ciência e Tecnologia and COMPETE 2020 program in FEDER component(EU),through the projects POCI-01-0145-FEDER-028887 and UID/FIS/04650/2013 the support from the Fundacao da Ciência e Tecnologia(FCT)through a Doctoral Programme in the Physics and Mathematics of Information and the associated scholarship PD/BD/113651/2015 and through the grant UID/CTM/04540/2013 the support of SQIG–Security and Quantum Information Group,under the Fundacao para a Ciência e a Tecnologia(FCT)project UID/EEA/50008/2019 European funds,namely H2020 project SPARTA 

主　　题：entanglement retrieval π-tangle Unruh decoherence 

摘      要：The retrieval of lost entanglement for relatively accelerated fermionic observers of a tripartite system by a partial measurement technique has been *** the prospective of the negativities of one-tangles and theπ-tangle,we show that the degraded entanglement in noninertial frames with single-mode approximation is completely retrieved by an optimal strength of the partial measurement or the partial measurement *** addition,we find that the optimal one-tangle with respect to inertial and noninertial observers turns out to be the same for an optimal strength of partial measurements at q0=0 when two accelerated observers move with infinite acceleration.