Initial-state dependence of a quantum resonance ratchet

• Verfasst von: Ni, Jiating [VerfasserIn]
• Verfasst von: Lam, Wa Kun [VerfasserIn]
• Verfasst von: Dadras, Siamak [VerfasserIn]
• Verfasst von: Borunda, Mario F. [VerfasserIn]
• Verfasst von: Wimberger, Sandro [VerfasserIn]
• Verfasst von: Summy, Gil S. [VerfasserIn]
• Titel: Initial-state dependence of a quantum resonance ratchet
• Verf.angabe: Jiating Ni, Wa Kun Lam, Siamak Dadras, Mario F. Borunda, Sandro Wimberger, and Gil S. Summy
• E-Jahr: 2016
• Jahr: 11 October 2016)
• Umfang: 6 S.
• Fussnoten: Gesehen am 09.10.2020
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2016
• Band/Heft Quelle: 94(2016,4) Artikel-Nummer 043620, 6 Seiten
• ISSN Quelle: 2469-9934
• DOI: doi:10.1103/PhysRevA.94.043620
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1735265950

Abstract

We demonstrate quantum resonance ratchets created with Bose-Einstein condensates exposed to pulses of an off-resonant standing light wave. We show how some of the basic properties of the ratchets are controllable through the creation of different initial states of the system. In particular, our results prove that through an appropriate choice of initial state it is possible to reduce the extent to which the ratchet state changes with respect to time. We develop a simple theory to explain our results and indicate how ratchets might be used as part of a matter-wave interferometer or quantum random walk experiment.