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Shortcut to adiabaticity in spinor condensates

# metadata.dc.description.abstract[].value
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.

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Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
Shortcut to adiabaticity in spinor condensates