COHERENT TRANSPORT IN A PERIODICALLY DRIVEN BISTABLE SYSTEM
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
The quantum dynamics of a quartic double well, subjected to a harmonically oscillating field, is studied in the framework of the Floquet formalism. The modifications of the familiar tunneling process due to the driving are investigated numerically and explained in terms of the structure of the corresponding local quasienergy spectrum. In particular, there is a one-dimensional manifold in the parameter space spanned by the amplitude and frequency of the driving force, where tunneling is almost completely suppressed by the coherent driving. The quantal dynamics in the semiclassical regime as well as the influence of weak incoherent processes are briefly discussed.
Details
Original language | English |
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Pages (from-to) | 229-245 |
Number of pages | 17 |
Journal | Journal of statistical physics |
Volume | 70 |
Issue number | 1-2 |
Publication status | Published - Jan 1993 |
Peer-reviewed | Yes |
Conference
Title | NATO ADVANCED RESEARCH WORKSHOP : STOCHASTIC RESONANCE IN PHYSICS AND BIOLOGY |
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Duration | 30 March - 3 April 1992 |
City | SAN DIEGO |
Country | Canada |
External IDs
Scopus | 21144463451 |
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Keywords
Keywords
- DRIVEN TUNNELING, FLOQUET THEORY, LOCALIZATION, EXACT AND AVOIDED CROSSINGS, NOISY QUANTUM DYNAMICS, QUANTUM CHAOS, DYNAMICS, SUPPRESSION, ACTIVATION, STATES, ATOMS, FIELD, NOISE