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Journal Articles New Journal of Physics Year : 2015

Spin wave diffraction control and read-out with a quantum memory for light

David Guéry-Odelin

Abstract

A scheme for control and read-out of diffracted spins waves to propagating light fields is presented. Diffraction is obtained via sinusoidally varying lights shifts and ideal one-to-one mapping to light is realized using a gradient echo quantum memory. We also show that dynamical control of the diffracted spin waves spatial orders can be implemented to realize a quantum pulse sequencer for temporal modes that have high time-bandwidth products. Full numerical solutions suggest that both co-propagating and counterpropagating light shift geometries can be used, making the proposal applicable to hot and cold atomic vapours as well as solid state systems with two-level atoms.
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hal-01176250 , version 1 (17-12-2015)

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Gabriel Hétet, David Guéry-Odelin. Spin wave diffraction control and read-out with a quantum memory for light. New Journal of Physics, 2015, 17 (7), pp.073003. ⟨10.1088/1367-2630/17/7/073003⟩. ⟨hal-01176250⟩
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