Behavior of the impurity atom in a weakly-interacting Bose gas
arXiv:1703.10390 · doi:10.5488/CMP.20.13604
Abstract
We studied the properties of a single impurity atom immersed in a dilute Bose condensate at low temperatures. In particular, we perturbatively obtained the momentum dependence of the impurity spectrum and damping. By means of the Brillouin-Wigner perturbation theory we also calculated the self-energy both for attractive and repulsive polaron in the long-wavelength limit. The stability problem of the impurity atom in a weakly-interacting Bose gas is also examined.
arXiv comment11 pages, 4 figures
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Cited by in corpus (7)
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- Mean-field study of repulsive 2D and 3D Bose polarons
- Polaron in the dilute critical Bose condensate
- Impurity in a three-dimensional unitary Bose gas
- Impurity self-energy in the strongly-correlated Bose systems
- Mean-field properties of impurity in Bose gas with three-body forces
- Composite polaron formed on surface of two-dimensional lattice system in weak coupling regime