Quantum polarization spectroscopy of correlations in attractive fermionic gases

T. Roscilde, M. Rodríguez, K. Eckert, O. Romero-lsart, M. Lewenstein, E. Polzik, A. Sanpera

Research output: Contribution to journalArticleResearchpeer-review

48 Citations (Scopus)

Abstract

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. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Original languageEnglish
Article number055041
JournalNew Journal of Physics
Volume11
DOIs
Publication statusPublished - 14 May 2009

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