We demonstrate quantum resonance ratchets created with Bose-Einstein condensates exposed to pulses of an off-resonant standing light wave. We show how some of the basic properties of the ratchets are controllable through the creation of different initial states of the system. In particular, our results prove that through an appropriate choice of initial state it is possible to reduce the extent to which the ratchet state changes with respect to time. We develop a simple theory to explain our results and indicate how ratchets might be used as part of a matter-wave interferometer or quantum random walk experiment.

Initial state dependence of a quantum-resonance ratchet / Ni, J; Lam, W; Dadras, S; Borunda, M. F; Wimberger, Sandro Marcel; Summy, G. S.. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 94:(2016), pp. 043620-1-043620-6. [10.1103/PhysRevA.94.043620]

Initial state dependence of a quantum-resonance ratchet

WIMBERGER, Sandro Marcel;
2016-01-01

Abstract

We demonstrate quantum resonance ratchets created with Bose-Einstein condensates exposed to pulses of an off-resonant standing light wave. We show how some of the basic properties of the ratchets are controllable through the creation of different initial states of the system. In particular, our results prove that through an appropriate choice of initial state it is possible to reduce the extent to which the ratchet state changes with respect to time. We develop a simple theory to explain our results and indicate how ratchets might be used as part of a matter-wave interferometer or quantum random walk experiment.
Initial state dependence of a quantum-resonance ratchet / Ni, J; Lam, W; Dadras, S; Borunda, M. F; Wimberger, Sandro Marcel; Summy, G. S.. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 94:(2016), pp. 043620-1-043620-6. [10.1103/PhysRevA.94.043620]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2822792
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