Decoherence-Free Subspaces and Subsystems

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.

Review paper. To be published as a book chapter

References in corpus (4)

• Encoded Recoupling and Decoupling: An Alternative to Quantum Error Correcting Codes, Applied to Trapped Ion Quantum Computation
• Exploring Noiseless Subsystems via Nuclear Magnetic Resonance
• Decoherence, Control, and Symmetry in Quantum Computers
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