skip to main content

DOE PAGESDOE PAGES

Title: Resonant Perturbation Theory of Decoherence and Relaxation of Quantum Bits

We describe our recent results on the resonant perturbation theory of decoherence and relaxation for quantum systems with many qubits. The approach represents a rigorous analysis of the phenomenon of decoherence and relaxation for general N -level systems coupled to reservoirs of bosonic fields. We derive a representation of the reduced dynamics valid for all times t 0 and for small but fixed interaction strength. Our approach does not involve master equation approximations and applies to a wide variety of systems which are not explicitly solvable.
Authors:
 [1] ;  [2] ;  [3]
  1. Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John's, NF, Canada A1C 5S7
  2. Theoretical Division, MS B213, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
  3. Department of Mathematics, University of Toronto, Toronto, ON, M5S2E4, Canada
Publication Date:
OSTI Identifier:
1198436
Grant/Contract Number:
AC52-06NA25396; AC52-07NA27344
Type:
Published Article
Journal Name:
Advances in Mathematical Physics
Additional Journal Information:
Journal Volume: 2010; Related Information: CHORUS Timestamp: 2016-08-11 08:17:18; Journal ID: ISSN 1687-9120
Publisher:
Hindawi Publishing Corporation
Sponsoring Org:
USDOE
Country of Publication:
Country unknown/Code not available
Language:
English