Dynamically stabilized decoherence-free states in non-Markovian open fermionic systems

Heng Na Xiong*, Wei Min Zhang, Matisse Wei Yuan Tu, Daniel Braun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


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 nonunitary 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.

Original languageAmerican English
Article number032107
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - 10 Sep 2012
Externally publishedYes


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