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Quantum Darwinism in Quantum Brownian Motion

Blume-KoHout, Robin and Zurek, Wojciech H. (2008) Quantum Darwinism in Quantum Brownian Motion. Physical Review Letters, 101 (24). Art. No. 240405. ISSN 0031-9007.

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Quantum Darwinism—the redundant encoding of information about a decohering system in its environment—was proposed to reconcile the quantum nature of our Universe with apparent classicality. We report the first study of the dynamics of quantum Darwinism in a realistic model of decoherence, quantum Brownian motion. Prepared in a highly squeezed state—a macroscopic superposition—the system leaves records whose redundancy increases rapidly with initial delocalization. Redundancy appears rapidly (on the decoherence time scale) and persists for a long time.

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Additional Information:© 2008 The American Physical Society. Received 15 May 2007; revised 28 March 2008; published 11 December 2008. We thank D. Poulin for discussions, and DOE for support via LDRD at Los Alamos.
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Department of EnergyUNSPECIFIED
Issue or Number:24
Record Number:CaltechAUTHORS:BLUprl08b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12692
Deposited By: Archive Administrator
Deposited On:20 Dec 2008 00:01
Last Modified:03 Oct 2019 00:30

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