W K Hensinger et al 2000 J. Opt. B: Quantum Semiclass. Opt. 2 659 doi:10.1088/1464-4266/2/5/314
W K Hensinger, A G Truscott, B Upcroft, N R Heckenberg and H Rubinsztein-Dunlop
Show affiliationsCold rubidium atoms are subjected to an amplitude-modulated far-detuned standing wave of light to form a quantum-driven pendulum. Here we discuss the dynamics of these atoms. Phase space resonances and chaotic transients of the system exhibit dynamics which can be useful in many atom optics applications as they can be utilized as means for phase space state preparation. We explain the occurrence of distinct peaks in the atomic momentum distribution, analyse them in detail and give evidence for the importance of the system for quantum chaos and decoherence studies.
03.75.Be Atom and neutron optics
03.65.Xp Tunneling, traversal time, quantum Zeno dynamics
03.65.Yz Decoherence; open systems; quantum statistical methods
Quantum gases, liquids and solids
Issue 5 (October 2000)
Received 4 February 2000, in final form 7 June 2000
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