Casimir force of a dilute Bose gas confined by a parallel plate geometry in improved Hatree-Fock approximation
arXiv:1809.09788 · doi:10.1016/j.physa.2019.123018
Abstract
Within framework of quantum field theory, in improved Hatree-Fock (IHF) approximation, we have considered a dilute single Bose-Einstein condensate (BEC) confined between two parallel plates. We found that the effective mass and order parameter of BEC strongly depend on distance separating two plates. Our results shows that the effective mass, order parameter and the Casimir force in IHF approximation equal to their values in one-loop approximation added a corrected term due to contribution of two-loop diagrams. We also show that the one-loop approximation is enough for calculating Casimir effect in an ideal Bose gas.
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Cited by in corpus (6)
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- Casimir effect in a dilute Bose gas in canonical ensemble within improved Hartree-Fock approximation
- Transition temperature and thermodynamic properties of homogeneous weakly interacting Bose gas in self-consistent Popov approximation
- Density of condensate of a dilute Bose gas in improved Hartree-Fock approximation
- Thermal Casimir effect in the spin-orbit coupled Bose gas
- The condensed fraction of a homogeneous dilute Bose gas within the improved Hartree-Fock approximation