Stimulated Raman adiabatic passage in an open quantum system: Master equation approach

Journal Article · Sat May 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.053847· OSTI ID:21413383

Scala, M; Militello, B; Messina, A ^[1]; Vitanov, N V ^[2]

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1. Dipartimento di Scienze Fisiche ed Astronomiche dell'Universita di Palermo, Via Archirafi 36, I-90123 Palermo (Italy)
2. Department of Physics, Sofia University, James Bourchier 5 boulevard, 1164 Sofia (Bulgaria)

A master equation approach to the study of environmental effects in the adiabatic population transfer in three-state systems is presented. A systematic comparison with the non-Hermitian Hamiltonian approach [Vitanov and Stenholm, Phys. Rev. A 56, 1463 (1997)] shows that, in the weak-coupling limit, the two treatments lead to essentially the same results. In contrast, in the strong-damping limit the predictions are quite different: In particular, the counterintuitive sequences in the STIRAP scheme turn out to be much more efficient than expected before. This point is explained in terms of quantum Zeno dynamics.

• OSTI ID: 21413383
• Journal Information: Physical Review. A, Vol. 81, Issue 5; Other Information: DOI: 10.1103/PhysRevA.81.053847; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
COMPARATIVE EVALUATIONS
COUPLING
EQUATIONS
HAMILTONIANS
EVALUATION
MATHEMATICAL OPERATORS
QUANTUM OPERATORS