Quantum memory assisted probing of dynamical spin correlations

O. Romero-Isart, M. Rizzi, C. A. Muschik, E. S. Polzik, M. Lewenstein, A. Sanpera

Research output: Contribution to journalArticleResearchpeer-review

9 Citations (Scopus)

Abstract

We propose a method to probe time-dependent correlations of nontrivial observables in many-body ultracold lattice gases. The scheme uses a quantum nondemolition matter-light interface, first to map the observable of interest on the many-body system into the light and then to store coherently such information into an external system acting as a quantum memory. Correlations of the observable at two (or more) instances of time are retrieved with a single final measurement that includes the readout of the quantum memory. Such a method brings to reach the study of dynamics of many-body systems in and out of equilibrium by means of quantum memories in the field of quantum simulators. © 2012 American Physical Society.
Original languageEnglish
Article number065302
JournalPhysical Review Letters
Volume108
DOIs
Publication statusPublished - 10 Feb 2012

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