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

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

2008-04-07

arxiv.org/abs/0804.1144v1

Phys. Rev. A 78, 041602(R) (2008)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 2 figures

Scientific paper

10.1103/PhysRevA.78.041602

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.

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