Quantum chaos of a mixed open system of kicked cold atoms

Yevgeny Krivolapov, Shmuel Fishman, Edward Ott, Thomas M. Antonsen

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The quantum and classical dynamics of particles kicked by a Gaussian attractive potential are studied. Classically, it is an open mixed system (the motion in some parts of the phase space is chaotic, and in some parts it is regular). The fidelity (Loschmidt echo) is found to exhibit oscillations that can be determined from classical considerations but are sensitive to phase space structures that are smaller than Planck's constant. Families of quasienergies are determined from classical phase space structures. Substantial differences between the classical and quantum dynamics are found for time-dependent scattering. It is argued that the system can be experimentally realized by cold atoms kicked by a Gaussian light beam.

Original languageEnglish
Article number016204
JournalPhysical Review E
Volume83
Issue number1
DOIs
StatePublished - 5 Jan 2011
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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