Ground-state properties of a dilute two-dimensional Bose gas
arXiv:1803.05242 · doi:10.1007/s10909-018-2082-1
Abstract
We revisit the problem of the calculation of low-temperature properties for the dilute two-dimensional Bose gas. By using Popov's hydrodynamic approach and perturbation theory on the one-loop level we recover not only the known expansion for the ground-state energy but also calculate for the first time the condensate density and Tan's contact.
10+epsilon pages, 1 figure; comments welcome
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Cited by in corpus (5)
- Mean-field study of repulsive 2D and 3D Bose polarons
- A new renormalon in two dimensions
- Functional renormalization for repulsive Bose-Bose mixtures at zero temperature
- Efimov-like physics in fraction-dimensional Bose systems with three-body interaction
- Flow-based Nonperturbative Simulation of First-order Phase Transitions