Jones, PH;
Goonasekera, M;
Meacher, DR;
Jonckheere, T;
Monteiro, TS;
(2007)
Directed motion for delta-kicked atoms with broken symmetries: Comparison between theory and experiment.
PHYS REV LETT
, 98
(7)
, Article 073002. 10.1103/PhysRevLett.98.073002.
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Abstract
We report an experimental investigation of momentum diffusion in the delta-function kicked rotor where time symmetry is broken by a two-period kicking cycle and spatial symmetry by an alternating linear potential. We exploit this, and a technique involving a moving optical potential, to create an asymmetry in the momentum diffusion that is due to the classical chaotic diffusion. This represents a realization of a type of Hamiltonian quantum ratchet.
| Type: | Article |
|---|---|
| Title: | Directed motion for delta-kicked atoms with broken symmetries: Comparison between theory and experiment |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.98.073002 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.98.073002 |
| Language: | English |
| Additional information: | © 2007 The American Physical Society |
| Keywords: | DYNAMICAL LOCALIZATION, QUANTUM TRANSPORT, BROWNIAN MOTORS, BOUNDARIES, RATCHETS, ROTOR, CHAOS |
| UCL classification: | UCL 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/122961 |
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