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      Quantum Decoherence

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          Abstract

          Quantum decoherence plays a pivotal role in the dynamical description of the quantum-to-classical transition and is the main impediment to the realization of devices for quantum information processing. This paper gives an overview of the theory and experimental observation of the decoherence mechanism. We introduce the essential concepts and the mathematical formalism of decoherence, focusing on the picture of the decoherence process as a continuous monitoring of a quantum system by its environment. We review several classes of decoherence models and discuss the description of the decoherence dynamics in terms of master equations. We survey methods for avoiding and mitigating decoherence and give an overview of several experiments that have studied decoherence processes. We also comment on the role decoherence may play in interpretations of quantum mechanics and in addressing foundational questions.

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          Quantum dynamics of single trapped ions

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            Manipulating quantum entanglement with atoms and photons in a cavity

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              Decoherence and the Transition from Quantum to Classical

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                Author and article information

                Journal
                14 November 2019
                Article
                10.1016/j.physrep.2019.10.001
                1911.06282
                8d31d780-6c29-43c0-a950-25c8b0c1afd9

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

                History
                Custom metadata
                Phys. Rep. 831, 1-57 (2019)
                73 pages, 25 figures, matches published version
                quant-ph

                Quantum physics & Field theory
                Quantum physics & Field theory

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