Dynamical Properties of a Rotating Bose-Einstein Condensate
Sebastian Kling, Axel Pelster
TL;DR
This paper studies the dynamical behavior of a rotating Bose-Einstein condensate in an anharmonic trap using a variational approach, focusing on excitation frequencies and expansion characteristics.
Contribution
It introduces a variational method to analyze the dynamical properties of rotating condensates in anharmonic potentials, providing new insights into their excitation spectra and expansion dynamics.
Findings
Calculated eigenfrequencies of low-energy excitations
Analyzed aspect ratio changes during free expansion
Provided theoretical predictions for rotating condensate behavior
Abstract
Within a variational approach to solve the Gross-Pitaevskii equation we investigate dynamical properties of a rotating Bose-Einstein condensate which is confined in an anharmonic trap. In particular, we calculate the eigenfrequencies of low-energy excitations out of the equilibrium state and the aspect ratio of the condensate widths during the free expansion.
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