# Thermodynamics of an interacting trapped Bose-Einstein gas in the classical field approximation

Source: [Thermodynamics of an interacting trapped Bose-Einstein gas in the classical field approximation](<https://www.sota2.com/research/paper/68fa1e357a2b558e29320ba1>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-23T14:20:21.228Z

Authors: K. Goral, M. Gajda, K. Rzazewski

Published: 2002-03-12T17:16:35.000Z

## Abstract

We present a convenient technique describing the condensate in dynamical equilibrium with the thermal cloud, at temperatures close to the critical one. We show that the whole isolated system may be viewed as a single classical field undergoing nonlinear dynamics leading to a steady state. In our procedure it is the observation process and the finite detection time that allow for splitting the system into the condensate and the thermal cloud.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/cond-mat/0203259>)

[PDF](<https://arxiv.org/pdf/cond-mat/0203259.pdf>)