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Quantum vortices in optical lattices | | P. Vignolo
; R. Fazio
; M.P. Tosi
; | | Date: |
18 Jan 2007 | | Subject: | Soft Condensed Matter | | Abstract: | A vortex in a superfluid gas inside an optical lattice can behave as a massive particle moving in a periodic potential and exhibiting quantum properties. In this Letter we discuss these properties and show that the excitation of vortex motions in a two-dimensional lattice can lead to striking measurable changes in its dynamic response. It would be possible by means of Bragg spectroscopy to carry out the first direct measurement of the effective vortex mass, the pinning to the underlying lattice, and the dissipative damping. | | Source: | arXiv, cond-mat/0701439 | | Services: | Forum | Review | PDF | Favorites | |
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