Títol:
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Shortcut to adiabaticity in spinor condensates
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Autor/a:
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Sala, Arnau; López Núñez, David; Martorell Domenech, Juan; Sarlo, Luigi De; Zibold, Tilman; Gerbier, Fabrice; Julia-Diaz, B.; Polls Martí, Artur
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Altres autors:
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Universitat de Barcelona |
Abstract:
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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. |
Matèries:
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-Condensació de Bose-Einstein -Àtoms -Bose-Einstein condensation -Atoms |
Drets:
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(c) American Physical Society, 2016
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Tipus de document:
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Article Article - Versió publicada |
Publicat per:
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American Physical Society
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