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cond-mat.quant-gas2010★ 24 cited
Excitation Spectra of Bosons in Optical Lattices from Schwinger-Keldysh Calculation
T. D. Grass, F. E. A. dos Santos, A. Pelster
Within the Schwinger-Keldysh formalism we derive a Ginzburg-Landau theory for the Bose-Hubbard model which describes the real-time dynamics of the complex order parameter field. An…
cond-mat.quant-gas2010★ 14 cited
Real-Time Ginzburg-Landau Theory for Bosons in Optical Lattices
T. D. Grass, F. E. A. dos Santos, A. Pelster
Within the Schwinger-Keldysh formalism we derive a Ginzburg-Landau theory for the Bose-Hubbard model which describes the real-time dynamics of the complex order parameter field. An…