Quantum Memory Assisted Probing of Dynamical Spin Correlations

TY - JOUR

T1 - Quantum Memory Assisted Probing of Dynamical Spin Correlations

AU - Romero-Isart, O.

AU - Rizzi, M.

AU - Muschik, C. A.

AU - Lewenstein, M.

AU - Sanpera, A.

AU - Polzik, Eugene Simon

PY - 2012/2/10

Y1 - 2012/2/10

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevLett.108.065302

DO - 10.1103/PhysRevLett.108.065302

M3 - Journal article

C2 - 22401082

SN - 0031-9007

VL - 108

SP - 065302

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

ER -