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Title: Shortcut to adiabaticity in spinor condensates
Author: Sala, Arnau
López Núñez, David
Martorell Domenech, Juan
Sarlo, Luigi De
Zibold, Tilman
Gerbier, Fabrice
Julia-Diaz, B.
Polls Martí, Artur
Keywords: Condensació de Bose-Einstein
Bose-Einstein condensation
Issue Date: 12-Oct-2016
Publisher: American Physical Society
Abstract: We devise a method to shortcut the adiabatic evolution of a spin-1 Bose gas with an external magnetic field as the control parameter. An initial many-body state with almost all bosons populating the Zeeman sublevel m = 0 is evolved to a final state very close to a macroscopic spin-singlet condensate, a fragmented state with three macroscopically occupied Zeeman states. The shortcut protocol, obtained by an approximate mapping to a harmonic oscillator Hamiltonian, is compared to linear and exponential variations of the control parameter. We find a dramatic speedup of the dynamics when using the shortcut protocol.
Note: Reproducció del document publicat a:
It is part of: Physical Review A, 2016, vol. 94, num. 4, p. 043623-1-043623-9
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ISSN: 2469-9926
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Física Quàntica i Astrofísica)

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