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Article overview
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Slow interaction ramps in trapped many-particle systems: universal deviations from adiabaticity | | Masudul Haque
; F.E. Zimmer
; | | Date: |
4 Oct 2011 | | Abstract: | For trapped atomic systems, we report universal non-adiabatic features in the
response to interaction ramps. We provide results for several different systems
in one, two, and three dimensions: bosonic and fermionic Hubbard models
realized through optical lattices, a Bose-Einstein condensate, a fermionic
superfluid and a fermi liquid. The deviation from adiabaticity is characterized
through the heating or excitation energy produced during the ramp. We find that
the dependence of the heat on the ramp time is sensitive to the ramp protocol
but has aspects unexpectedly common to all systems considered. We explain these
common features in terms of universal dynamics of the system size or cloud
radius. | | Source: | arXiv, 1110.0840 | | Services: | Forum | Review | PDF | Favorites | |
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