Chaos and two-level dynamics of the atomtronic quantum interference device

Geva Arwas, Doron Cohen

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

We study the atomtronic quantum interference device employing a semiclassical perspective. We consider an M site ring that is described by the Bose-Hubbard Hamiltonian. Coherent Rabi oscillations in the flow of the current are feasible, with an enhanced frequency due to chaos-assisted tunneling. We highlight the consequences of introducing a weak-link into the circuit. In the latter context we clarify the phase-space considerations that are involved in setting up an effective 'systems plus bath' description in terms of Josephson-Caldeira-Leggett Hamiltonian.

Original languageEnglish
Article number015007
JournalNew Journal of Physics
Volume18
Issue number1
DOIs
StatePublished - 1 Jan 2016

Keywords

  • BoseHubbard
  • Rabi oscillations
  • atomtronics
  • quantum chaos
  • superfluid circuit

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