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Quantum Information with Atoms and Photons

Abstract:  Atomic gases and single photons are among the most promising candidates
to implement quantum information technology because they can be well
isolated from their environment. Despite this advantage it is challenging
to design controllable interaction between these particles and to store
or manipulate quantum information in a reliable way.
We have explored how electromagnetically induced transparency can be used
to create a large nonlinear interaction between single-photon pulses,
to transfer optical states between different photon modes, and to
create an unusual interaction between light fields. Furthermore, we
have found new results on the physical limitations of decoherence-free
states. The nature of these limitations points towards new directions
in the search for decoherence-free subspaces.

Joint QO/AMO and QuInf Seminar (PLEASE NOTE THE SPECIAL DATE AND PLACE)