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Ultracold atomic quantum gases far from equilibrium

✍ Scribed by Thomas Gasenzer; Jürgen Berges; Michael G. Schmidt; Marcos Seco

Book ID
104069618
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
247 KB
Volume
785
Category
Article
ISSN
0375-9474

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✦ Synopsis

We calculate the time evolution of a far-from-equilibrium initial state of a non-relativistic ultracold Bose gas in one spatial dimension. The non-perturbative approximation scheme is based on a systematic expansion of the two-particle irreducible effective action in powers of the inverse number of field components. This yields dynamic equations which contain direct scattering, memory and off-shell effects that are not captured in mean-field theory. * Funded by Deutsche Forschungsgemeinschaft.

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Density–density correlation of ultracold atomic gases released from a series of attractive potentials
✍ Shujuan Liu; Hongwei Xiong 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 387 KB

The purpose of this paper is to explore the density-density correlation for the ultracold atomic gases released from a series of attractive potentials. It is found that the interference fringes in the density-density correlation reflect in a unique way the arrangement of these attractive potentials,