Collisionless modes of a trapped Bose gas
M. J. Bijlsma, H. T. C. Stoof
Abstract
We calculate the excitation frequencies of the m=0 monopole and m=2 quadrupole modes in the collisionless regime by solving a non-linear Schroedinger equation for the condensate, coupled to a collisionless Boltzmann equation for the quasiparticles. Since the dynamics of the noncondensate cloud is also taken into account, the theory satisfies the Kohn theorem. The spectrum turns out to be strongly temperature dependent and we compare our results with experiment.
Create a lesson
Related papers
Maximum entropy explanation for the ubiquity of power-law mechanical responses
Sverre Holm
Thermodynamic Bethe Ansatz for the Toda chain from inverse scattering transform
Alberto Brollo
Lattice spin systems coupled to a compact U(1) gauge field with negative gauge coupling favoring frustration
Claudio Bonati, Ettore Vicari
The Inverse Mean First-Passage Time Problem
Tommer D. Keidar, Shlomi Reuveni, Igor M. Sokolov
Restricted triangular ice beyond the solvable manifolds: chiral ice and the critical region of dominant chiral vertices
Josep Batle
Establishing Néel order in the square-lattice antiferromagnetic Heisenberg model: a bootstrap proof
Nisarg Chadha, Taige Wang, Pavel A. Nosov et al.