Initial state dependence of a quantum-resonance ratchet
arXiv:1608.09003 · doi:10.1103/PhysRevA.94.043620
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.
arXiv comment6 pages, 8 figures
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Cited by in corpus (13)
- Quantum Walk in Momentum Space with a Bose-Einstein Condensate
- Experimental realization of a momentum-space quantum walk
- Hamiltonian ratchets with ultra-cold atoms
- Quantum walk of a Bose-Einstein condensate in the Brillouin zone
- Nonlinear Floquet dynamics of spinor condensates in an optical cavity: Cavity-amplified parametric resonance
- Parrondo's paradox for discrete-time quantum walks in momentum space
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- Spontaneous Emission in Quantum Walks of a Kicked Bose-Einstein Condensate
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