Excitation spectra of correlated lattice bosons in a confining trap
We consider ultracold bosonic atoms in an optical lattice with an external trapping potential. To study the excitation energies of the resulting Bose-Hubbard model, we develop a method based on a time-dependent generalization of the Gutzwiller ansatz. We calculate the excitations of the homogeneous...
| Main Authors: | , , |
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| Format: | Record |
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2007
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