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Creffield, Charles E. and Fishman, S. and Monteiro, T. S. (2006) Theory of 2 δ-kicked quantum rotors. Physical review E, 73 (6). ISSN 1539-3755
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Official URL: http://dx.doi.org/10.1103/PhysRevE.73.066202
Abstract
We examine the quantum dynamics of cold atoms subjected to pairs of closely spaced kicks from standing waves of light and find behavior quite unlike the well-studied quantum kicked rotor QKR. We show that the quantum phase space has a periodic, cellular structure arising from a unitary matrix with oscillating bandwidth. The corresponding eigenstates are exponentially localized, but scale with a fractional power L~ħ_(-0.75), in contrast to the QKR for which L~ħ_(-1). The effect of intercell (and intracell) transport is investigated by studying the spectral fluctuations with both periodic as well as “open” boundary conditions.
Item Type: | Article |
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Additional Information: | ©2006 The American Physical Society. |
Uncontrolled Keywords: | Delta-kicked rotor; Spectral statistics; Disordered-systems; Chaotic systems; Eigenfunctions; Transition; Dynamics; Barriers; Cantori; Models |
Subjects: | Sciences > Physics > Materials Sciences > Physics > Solid state physics |
ID Code: | 33557 |
Deposited On: | 14 Oct 2015 16:19 |
Last Modified: | 14 Oct 2015 16:19 |
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