Excitation Spectra of Bose-Einstein Condensates in Optical Lattice

DOI Web Site Web Site BIBCODE 49 References

Search this article

Abstract

The excitation spectra of Bose–Einstein condensates are investigated in a three-dimensional optical lattice by the Bogoliubov theory considering the original sinusoidal potential for the optical lattice. When the lattice potential becomes high, the excitations show softening at large wavelengths, suggesting the breakdown of superfluidity. We also study the filling and interaction dependences of the properties of the excitation spectra and one-dimensional lattice case.

Journal

References(49)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top