Phase coherence and nonadiabatic transition at a level crossing in a periodically driven two-level system
Journal Article
·
· Physical Review, B: Condensed Matter; (United States)
- Department of Physics, Faculty of Science, Tohoku University, Sendai 980 (Japan)
Some aspects of the Landau-Zener-type transition of a periodically driven two-level system with dephasing are clarified. Under the condition that the transition is well localized around the level-crossing region, the transition dynamics for the typical cases is described by simple formulas; namely, by the transfer-matrix method for the long-range coherence, by the application of the incoherent Landau-Zener formula for the short-range coherence, and by the strong-dephasing formula in the limit of complete decoherence.
- OSTI ID:
- 6872360
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Vol. 47:15; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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