Decoherence-Free Subspaces and Subsystems
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Decoherence-Free Subspaces and Subsystems

  • Author(s): Lidar, Daniel A
  • Whaley, K Birgitta
  • et al.
Abstract

Decoherence is the phenomenon of non-unitary dynamics that arises as a consequence of coupling between a system and its environment. It has important harmful implications for quantum information processing, and various solutions to the problem have been proposed. Here we provide a detailed a review of the theory of decoherence-free subspaces and subsystems, focusing on their usefulness for preservation of quantum information.

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