Geometric phase in open systems: Beyond the Markov approximation and weak-coupling limit

Journal Article · Mon May 15 00:00:00 EDT 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20787203

Yi, X X ^[1]; Tong, D M; Oh, C H ^[2]; Wang, L C ^[1]; Kwek, L C ^[3]

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1. Department of Physics, Dalian University of Technology, Dalian 116024 (China)
2. Department of Physics, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260 (Singapore)
3. Department of Natural Sciences, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616 (Singapore)

Beyond the quantum Markov approximation and the weak-coupling limit, we present a general theory to calculate the geometric phase for open systems with and without conserved energy. As an example, the geometric phase for a two-level system coupling both dephasingly and dissipatively to its environment is calculated. Comparison with the results from quantum trajectory analysis is presented and discussed.

• OSTI ID: 20787203
• Journal Information: Physical Review. A, Vol. 73, Issue 5; Other Information: DOI: 10.1103/PhysRevA.73.052103; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
APPROXIMATIONS
COMPARATIVE EVALUATIONS
COUPLING
ENERGY LEVELS
MARKOV PROCESS
QUANTUM MECHANICS
TRAJECTORIES