Transition temperature of a two-component Bose-Einstein condensates in improved Hartree-Fock approximation

2025/04/21 by Van Thu, Nguyen
#FOS: Physical sciences #Quantum Gases (cond-mat.quant-gas)

paper · doi:10.48550/arxiv.2504.14954

Abstract

In this study, we investigate the transition temperature of a two-component Bose-Einstein condensates by means of Cornwall-Jackiw-Tomboulis effective action formalism within the framework of the improved Hartree-Fock approximation. Influence of intra- and interspecies interactions as well as of the thermal fluctuations to the transition temperature are considered up to leading order of the gas parameters and scattering lengths.

Citations

• Analysis of a simple equation for the ground state of the Bose gas II:\n Monotonicity, Convexity and Condensate Fraction
• Quantum depletion of a homogeneous Bose-Einstein condensate
• Gapless Hartree-Fock resummation scheme for theO(N)model
• Quantum phase diagram for homogeneous Bose-Einstein condensate
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• Theory of the weakly interacting Bose gas
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• BEC Transition Temperature of a Dilute Homogeneous Imperfect Bose Gas
• Critical Temperature Shift in Weakly Interacting Bose Gas
• Critical Temperature of Bose-Einstein Condensation of Hard Sphere Gases
• Thermodynamics of a Weakly Interacting Bose–Einstein Gas
• Dependence of the BEC transition temperature on interaction strength: a perturbative analysis

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• Transition temperature and thermodynamic properties of homogeneous weakly interacting Bose gas in self-consistent Popov approximation