Hamiltonian Ratchets with Ultra-Cold Atoms

Jiating Ni, Siamak Dadras, Wa Kun Lam, Rajendra K. Shrestha, Mark Sadgrove, Sandro Wimberger, Gil S. Summy

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Quantum-resonance ratchets have been realized over the last ten years for the production of directed currents of atoms. These non-dissipative systems are based on the interaction of a Bose-Einstein condensate with an optical standing wave potential to produce a current of atoms in momentum space. In this paper we provide a review of the important features of these ratchets with a particular emphasis on their optimization using more complex initial states. We also examine their stability close to resonance conditions of the kicking. Finally we discuss the way in which these ratchets may pave the way for applications in quantum (random) walks and matter-wave interferometry.

Original languageEnglish
Article number1600335
JournalAnnalen der Physik
Issue number8
Publication statusPublished - 2017 Aug


  • Bose-Einstein condensate
  • atom-optics kicked rotor
  • quantum ratchets
  • quantum transport

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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