Lawrence Berkeley National Laboratory
Decoherence-Free Subspaces and Subsystems
- Author(s): Lidar, Daniel A
- Whaley, K Birgitta
- et al.
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.