Quantum polarization spectroscopy of correlations in attractive fermionic gases

Details Quantum polarization spectroscopy of correlations in attractive fermionic gases Quantum polarization spectroscopy of correlations in attractive fermionic gases

2009-01-20

arxiv.org/abs/0901.3091v1

New J. Phys. 11, 055041 (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

16 pages, 9 figures

Scientific paper

10.1088/1367-2630/11/5/055041

We show how spin-spin correlations, detected in a non-destructive way via spatially resolved quantum polarization spectroscopy, strongly characterize various phases realized in trapped ultracold fermionic atoms. Polarization degrees of freedom of the light couple to spatially resolved components of the atomic spin. In this way quantum fluctuations of matter are faithfully mapped onto those of light. In particular we demonstrate that quantum spin polarization spectroscopy provides a direct method to detect the Fulde-Ferrell-Larkin-Ovchinnikov phase realized in a one-dimensional imbalanced Fermi system.

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