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Gradient Echo Quantum Memory in Warm Atomic Vapor
Published on: November 11, 2013
Electromagnetically induced transparency and light storage in an atomic Mott insulator
U Schnorrberger1, J D Thompson, S Trotzky
1Johannes Gutenberg-Universität, Institut für Physik, Staudingerweg 7, 55128 Mainz, Germany.
Abstract:
We experimentally demonstrate electromagnetically induced transparency and light storage with ultracold 87Rb atoms in a Mott insulating state in a three-dimensional optical lattice. We have observed light storage times of approximately 240 ms, to our knowledge the longest ever achieved in ultracold atomic samples. Using the differential light shift caused by a spatially inhomogeneous far detuned light field we imprint a "phase gradient" across the atomic sample, resulting in controlled angular redirection of the retrieved light pulse.
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