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Title: Environment-Assisted Speed-up of the Field Evolution in Cavity Quantum Electrodynamics

We measure the quantum speed of the state evolution of the field in a weakly-driven optical cavity QED system. To this end, the mode of the electromagnetic field is considered as a quantum system of interest with a preferential coupling to a tunable environment: the atoms. By controlling the environment, i.e., changing the number of atoms coupled to the optical cavity mode, an environment assisted speed-up is realized: the quantum speed of the state re-population in the optical cavity increases with the coupling strength between the optical cavity mode and this non-Markovian environment (the number of atoms).
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [3]
  1. Univ. of Maryland, College Park, MD (United States). Joint Quantum Institute, Department of Physics
  2. Univ. of Maryland, College Park, MD (United States). Joint Quantum Institute, Department of Physics. Shanxi University, Taiyuan (China). State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics.
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division and Center for Nonlinear Studies
Publication Date:
OSTI Identifier:
1215632
Report Number(s):
LA-UR--14-28946
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US1600415
Grant/Contract Number:
1307416; 11304190; AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 23; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Contributing Orgs:
National Science Foundation (NSF), Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS