Quantum Darwinism in quantum Brownian motion.
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.
Blume-Kohout
Robin
R
Theoretical Division, LANL, Los Alamos, New Mexico 87545, USA.
Zurek
Wojciech H
WH