Stuttgart 2012 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 50: Kalte Atome: Manipulation und Detektion
Q 50.4: Talk
Thursday, March 15, 2012, 14:45–15:00, V7.03
Quantum Memory Assisted Probing of Dynamical Spin Correlations — Oriol Romero-Isart1, •Matteo Rizzi1, Christine Muschik1,4, Eugene Polzik2, Maciej Lewenstein3,4, and Anna Sanpera3,5 — 1Max-Planck-Institut für Quantenoptik, Garching, Germany — 2Niels Bohr Institute, QUANTOP, Copenhagen University, Denmark — 3ICREA-Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain — 4ICFO-Institut de Ciències Fotòniques, Castelldefels, Spain — 5Departament de Física. Universitat Autònoma de Barcelona, Bellaterra, Spain
We propose a method to probe time dependent correlations of non trivial observables in many-body ultracold lattice gases. The scheme uses a quantum non-demolition 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 method brings at 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.