Abstract
The entanglement dynamics of three-qubit states under a general XY spin-chain environment which can exhibit a quantum phase transition is investigated by using negativity as entanglement measure. Our results imply that the entanglement evolution depends not only on the states of concern but also on the system-environment coupling, the anisotropy parameter, the size of the environment, and the strength of the external field applied to the environment. For the cases under study, we find that the entanglement decay is enhanced by quantum phase transition under weak coupling. The conditions to identify quantum decoherence-free subspaces have been discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
