Journal
QUANTUM INFORMATION PROCESSING
Volume 17, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1007/s11128-018-2066-8
Keywords
Quantum coherence; Quantum phase transition; Tripartite system; Quantum correlations
Funding
- National Basic Research Program of China [2013CBA01702]
- National Natural Science Foundation of China [61575055, 61377016, 10974039, 61307072, 61308017, 61405056]
- Special Fund Project of Harbin Science and Technology Innovation Talents Research [RC2017QN017004]
Ask authors/readers for more resources
We investigate the dynamics of quantum coherence, based on relative entropy and quantum skew information, for tripartite systems in a quantum-critical environment. We demonstrate that initial states, the strength of magnetic field, anisotropy parameter, system-environment coupling, and the scale of the environment strongly affect coherence evolution. We find that two measures of coherence are frozen for the initial W state coupled to an XY spin-chain environment as the system-environment coupling satisfies certain conditions. We compare the dynamics of quantum coherence with that of the entanglement and the quantum discord. The analysis shows no hierarchical relationship among them.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available