Abstract
We investigate the level surfaces of geometric discord under some typical kinds of decoherence channels for a class of two-qubit states with the Bloch vectors $\overset {\rightharpoonup }{r}$ and $\overset {\rightharpoonup }{s}$ in z and x direction respectively. The surfaces of geometric discord are composed of three interaction ”cylinders” along three orthogonal directions of $\overset {\rightharpoonup }{c}_{1}$ , $\overset {\rightharpoonup }{c}_{2}$ and $\overset {\rightharpoonup }{c}_{3}$ . We study the different images corresponding to different values of geometric discord, the Bloch vectors as well as p. In the phase damping channel, the geometric discord keeps constant over a period of time, furthermore the geometric discord and the quantum discord have the same sudden change point for Non-X-structured state.
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.
