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Article
Critical Temperature Shift in Weakly Interacting Bose Gas
Physics Review Letters
Publication Date
2001
Abstract
With a high-performance Monte Carlo algorithm we study the interaction-induced shift of the critical point in weakly interacting three-dimensional |ψ|4 theory (which includes quantum Bose gas). In terms of critical density, nc, mass, m, interaction, U, and temperature, T, this shift is universal: Δnc(T) = -Cm3T2U, the constant C found to be equal to 0.0140±0.0005. For quantum Bose gas with the scattering length a this implies ΔTc/Tc = C0an1/3, with C0 = 1.29±0.05.
Disciplines
Comments
This is the pre-published version harvested from ArXiv. The published version is located at http://prl.aps.org/abstract/PRL/v87/i12/e120402
Citation Information
V Kashurnikov, N Prokof'ev and B Svistunov. "Critical Temperature Shift in Weakly Interacting Bose Gas" Physics Review Letters Vol. 87 Iss. 12 (2001) Available at: http://works.bepress.com/nikolai_prokofev/10/