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Author
J. Wernsdorfer
M. Snoek
W. Hofstetter
Year
2010
Title
Lattice-ramp-induced dynamics in an interacting Bose-Bose mixture
Journal
Physical Review A
Volume | Issue number
81 | 4
Pages (from-to)
043620
Number of pages
11
Document type
Article
Faculty
Faculty of Science (FNWI)
Institute
Institute for Theoretical Physics Amsterdam (ITFA)
Abstract
We investigate a bosonic quantum gas consisting of two interacting species in an optical lattice at zero and finite temperature. The equilibrium properties and dynamics of this system are obtained by means of the Gutzwiller mean-field method. In particular we model recent experiments where the ramp-up of the optical lattice occurs on a time scale comparable to the tunneling time of the bosons. We demonstrate the violation of adiabaticity of this process with respect to the many-body quantum states, and we reproduce and explain the oscillations of the visibility as a function of ramp-up time, as seen in experiments.
URL
go to publisher's site
Language
English
Permalink
http://hdl.handle.net/11245/1.333131
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  • 333131.pdf

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