Krauth 1996

From Werner KRAUTH

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W. Krauth Quantum Monte Carlo Calculations for a large number of bosons in a harmonic trap Physical Review Letters 77 3695 (1996)

Abstract: : In this paper, I present a precise Quantum Monte Carlo calculation at finite temperature for a very large number (many thousands) of bosons in a harmonic trap, which may be anisotropic. The calculation applies directly to the recent experiments of Bose-Einstein condensation of atomic vapors in magnetic traps. I show that the critical temperature of the system decreases with the interaction. I also present profiles for the overall density and the one of condensed particles, and obtain excellent agreement with solutions of the Gross-Pitaevskii equation.

Context: This is the first numerical simulation ever performed for cold atomic gases. The algorithm developed in this paper has proven useful in a number of contexts, often in direct connection with experiments (see [Category:Bosons] ).