Signatures of Strong Correlations in One-Dimensional Ultra-Cold Atomic Fermi Gases

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Recent success in manipulating ultra-cold atomic systems allows to probe different strongly correlated regimes in one-dimension. Regimes such as the (spin-coherent) Luttinger liquid and the spin-incoherent Luttinger liquid can be realized by tuning the inter-atomic interaction strength and trap parameters. We identify the noise correlations of density fluctuations as a robust observable (uniquely suitable in the context of trapped atomic gases) to discriminate between these two regimes. Finally, we address the prospects to realize and probe these phenomena experimentally using optical lattices.
4 pages, 2 figures

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Other Condensed Matter, Strongly Correlated Electrons, Atomic Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/210463

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0804.1144
 http://arxiv.org/abs/0804.1144
 Phys. Rev. A 78, 041602(R) (2008)
 doi:10.1103/PhysRevA.78.041602

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arXiv