Collisionless dynamics of dilute Bose gases: Role of quantum and thermal fluctuations

@inproceedings{Giorgini2000CollisionlessDO,
  title={Collisionless dynamics of dilute Bose gases: Role of quantum and thermal fluctuations},
  author={Stefano Giorgini},
  year={2000}
}
  • Stefano Giorgini
  • Published 2000
  • Physics
  • We study the low-energy collective oscillations of a dilute Bose gas at finite temperature in the collisionless regime. By using a time-dependent mean-field scheme we derive for the dynamics of the condensate and noncondensate components a set of coupled equations, which we solve perturbatively to second order in the interaction coupling constant. This approach is equivalent to the finite-temperature extension of the Beliaev approximation and includes corrections to the Gross-Pitaevskii theory… CONTINUE READING

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