Dynamic Entanglement Evolution of Two-qubit XYZ Spin Chain in Markovian Environment
Abstract
We propose a new approach called Ket-Bra Entangled State (KBES) Method for converting master equation into Schr\"{o}dinger-like equation. With this method, we investigate decoherence process and entanglement dynamics induced by a -qubit spin chain that each qubit coupled with reservoir. The spin chain is an anisotropy Heisenberg model in the external magnetic field , the corresponding master equation is solved concisely by KBES method; Furthermore, the effects of anisotropy, temperature, external field and initial state on concurrence dynamics is analyzed in detail for the case that initial state is Extended Wenger-Like(EWL) state. Finally we research the coherence and concurrence of the final state (namely the density operator for time tend to infinite)
Keywords
Cite
@article{arxiv.1509.01001,
title = {Dynamic Entanglement Evolution of Two-qubit XYZ Spin Chain in Markovian Environment},
author = {Ren Yi-Chong and Fan Hong-Yi},
journal= {arXiv preprint arXiv:1509.01001},
year = {2015}
}