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Article Dans Une Revue Physical Review Letters Année : 2010

Fast Optimal Frictionless Atom Cooling in Harmonic Traps: Shortcut to Adiabaticity

Xi Chen
S. Schmidt
  • Fonction : Auteur
A. del Campo
  • Fonction : Auteur
David Guéry-Odelin

Résumé

A method is proposed to cool down atoms in a harmonic trap without phase-space compression as in a perfectly slow adiabatic expansion, i.e., keeping the same populations of instantaneous levels in the initial and final traps, but in a much shorter time. This may require that the harmonic trap become transiently an expulsive parabolic potential. The cooling times achieved are shorter than those obtained using optimal-control bang-bang methods and real frequencies.

Dates et versions

hal-00910148 , version 1 (27-11-2013)

Identifiants

Citer

Xi Chen, A. Ruschhaupt, S. Schmidt, A. del Campo, David Guéry-Odelin, et al.. Fast Optimal Frictionless Atom Cooling in Harmonic Traps: Shortcut to Adiabaticity. Physical Review Letters, 2010, 104 (6), 063002 [4 p.]. ⟨10.1103/PhysRevLett.104.063002⟩. ⟨hal-00910148⟩
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