Fast transitionless expansion of cold atoms in optical Gaussian-beam traps
- 5 March 2012
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 85 (3)
- https://doi.org/10.1103/physreva.85.033605
Abstract
We study fast expansions of cold atoms in a three-dimensional Gaussian-beam optical trap. Three different methods to avoid final motional excitation are compared: inverse engineering using Lewis-Riesenfeld invariants, which provides the best overall performance, a bang-bang approach, and a fast adiabatic approach. We analyze the excitation effect of anharmonic terms, radial-longitudinal coupling, and radial-frequency mismatch. In the inverse-engineering approach these perturbations can be suppressed or mitigated by increasing the laser beam waist. DOI: http://dx.doi.org/10.1103/PhysRevA.85.033605 Received 31 October 2011Published 5 March 2012©2012 American Physical SocietyKeywords
This publication has 33 references indexed in Scilit:
- Transient energy excitation in shortcuts to adiabaticity for the time-dependent harmonic oscillatorPhysical Review A, 2010
- Transitionless quantum drivings for the harmonic oscillatorJournal of Physics B: Atomic, Molecular and Optical Physics, 2010
- Fast Optimal Frictionless Atom Cooling in Harmonic Traps: Shortcut to AdiabaticityPhysical Review Letters, 2010
- Frictionless dynamics of Bose–Einstein condensates under fast trap variationsJournal of Physics B: Atomic, Molecular and Optical Physics, 2009
- Fast-forward of adiabatic dynamics in quantum mechanicsProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009
- Maximum work in minimum time from a conservative quantum systemPhysical Chemistry Chemical Physics, 2008
- All-optical Bose-Einstein condensation using a compressible crossed dipole trapPhysical Review A, 2005
- Cooling Bose-Einstein Condensates Below 500 PicokelvinScience, 2003
- Bose–Einstein condensation on a microelectronic chipNature, 2001
- Adiabatic Cooling of Cesium to 700 nK in an Optical LatticePhysical Review Letters, 1995