2007/01/18 by P. Vignolo, Patrizia Vignolo, Rosario Fazio +3 · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Dissipative system #Excitation #Lattice (music) #Mechanics #Optical lattice #Optical vortex #Physics #Quantum #Quantum mechanics #Quantum, superfluid, helium dynamics #Spectroscopy #Strong Light-Matter Interactions #Superfluidity #Vortex #cond-mat.soft
paper · pdf · doi:10.1103/physreva.76.023616
published as Phys. Rev. A vol. 76, 023616 (2007) · 4 pages, 1 figure
arxiv created 2007/01/18 · openalex publication_date 2007/08/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 paper we discuss these properties and show that the excitation of vortex dynamics 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. In addition, the experiments proposed here provide an alternative way to study the pinning to the underlying lattice and the dissipative damping.