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Implementation of Classical Communication in a Quantum World
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Received: 11 July 2012; in revised form: 31 October 2012 / Accepted: 6 December 2012 / Published: 13 December 2012
Abstract: Observations of quantum systems carried out by finite observers who subsequently communicate their results using classical data structures can be described as “local operations, classical communication” (LOCC) observations. The implementation of LOCC observations by the Hamiltonian dynamics prescribed by minimal quantum mechanics is investigated. It is shown that LOCC observations cannot be described using decoherence considerations alone, but rather require the a priori stipulation of a positive operator-valued measure (POVM) about which communicating observers agree. It is also shown that the transfer of classical information from system to observer can be described in terms of system-observer entanglement, raising the possibility that an apparatus implementing an appropriate POVM can reveal the entangled system-observer states that implement LOCC observations.
Keywords: decoherence; einselection; emergence; entanglement; quantum-to-classical transition; virtual machines
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MDPI and ACS Style
Fields, C. Implementation of Classical Communication in a Quantum World. Information 2012, 3, 809-831.
Fields C. Implementation of Classical Communication in a Quantum World. Information. 2012; 3(4):809-831.
Fields, Chris. 2012. "Implementation of Classical Communication in a Quantum World." Information 3, no. 4: 809-831.