Shortcut to adiabaticity in spinor condensates

Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/128469

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 Àtoms Bose-Einstein condensation Atoms
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: https://doi.org/10.1103/PhysRevA.94.043623
It is part of:	Physical Review A, 2016, vol. 94, num. 4, p. 043623-1-043623-9
URI:	http://hdl.handle.net/2445/128469
Related resource:	https://doi.org/10.1103/PhysRevA.94.043623
ISSN:	2469-9926
Appears in Collections:	Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) Publicacions de projectes de recerca finançats per la UE

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