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Gating ratchet for cold atoms

Gommers, R; Lebedev, V; Brown, M; Renzoni, F; (2008) Gating ratchet for cold atoms. PHYS REV LETT , 100 (4) , Article 040603. 10.1103/PhysRevLett.100.040603. Green open access

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Abstract

We demonstrate experimentally a gating ratchet with cold rubidium atoms in a driven near-resonant optical lattice. A single-harmonic periodic modulation of the optical potential depth is applied, together with a single-harmonic rocking force. Directed motion is observed as a result of the breaking of the symmetries of the system.

Type: Article
Title: Gating ratchet for cold atoms
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.100.040603
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.100.040603
Language: English
Additional information: © 2008 The American Physical Society
Keywords: BROWNIAN MOTORS, THERMAL RATCHETS, TRANSPORT, SYMMETRY, DRIVEN, RECTIFICATION, FLUCTUATIONS, SYSTEMS, MOTION, SIGNAL
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/128964
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