Dynamically stabilized decoherence-free states in non-Markovian open fermionic systems
Quantum Physics
2013-05-30 v1
Abstract
Decoherence-free subspaces (DFSs) provide a strategy for protecting the dynamics of an open system from decoherence induced by the system-environment interaction. So far, DFSs have been primarily studied in the framework of Markovian master equations. In this work, we study decoherence-free (DF) states in the general setting of a non-Markovian fermionic environment. We identify the DF states by diagonalizing the non-unitary evolution operator for a two-level fermionic system attached to an electron reservoir. By solving the exact master equation, we show that DF states can be stabilized dynamically.
Keywords
Cite
@article{arxiv.1207.1538,
title = {Dynamically stabilized decoherence-free states in non-Markovian open fermionic systems},
author = {Heng-Na Xiong and Wei-Min Zhang and Matisse Wei-Yuan Tu and Daniel Braun},
journal= {arXiv preprint arXiv:1207.1538},
year = {2013}
}
Comments
11 pages, 3 figures. Any comments are welcome