Pseudo-entanglement evaluated in noninertial frames |
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| Authors: | Hossein Mehri-Dehnavi Behrouz Mirza Hosein Mohammadzadeh Robabeh Rahimi |
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| Institution: | aDepartment of Physics, Institute for Advanced Studies in Basic Sciences, Zanjan 45195-1159, Iran;bResearch Center for Quantum Computing, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan;cDepartment of Physics, Isfahan University of Technology, Isfahan 84156-83111, Iran;dDepartment of Chemistry, Graduate School of Science, Osaka City University, Osaka 558-8585, Japan;eInstitute for Quantum Computing and Department of Physics and Astronomy, University of Waterloo, Waterloo, ON, Canada N2L 3G1 |
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| Abstract: | We study quantum discord, in addition to entanglement, of bipartite pseudo-entanglement in noninertial frames. It is shown that the entanglement degrades from its maximum value in a stationary frame to a minimum value in an infinite accelerating frame. There is a critical region found in which, for particular cases, entanglement of states vanishes for certain accelerations. The quantum discord of pseudo-entanglement decreases by increasing the acceleration. Also, for a physically inaccessible region, entanglement and nonclassical correlation are evaluated and shown to match the corresponding values of the physically accessible region for an infinite acceleration. |
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| Keywords: | Quantum computing Entanglement Nonclassical correlation Noninertial frames Ensemble systems |
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