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arXiv · 0801.3860

Multi-Modal Properties and Dynamics of the Gradient Echo Quantum Memory

G. Hétet·J. J. Longdell·M. J. Sellars·P. K. Lam·B. C. Buchler
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Abstract

We investigate the properties of a recently proposed Gradient Echo Memory (GEM) scheme for information mapping between optical and atomic systems. We show that GEM can be described by the dynamic formation of polaritons in k-space. This picture highlights the flexibility and robustness with regards to the external control of the storage process. Our results also show that, as GEM is a frequency-encoding memory, it can accurately preserve the shape of signals that have large time-bandwidth products, even at moderate optical depths. At higher optical depths, we show that GEM is a high fidelity multi-mode quantum memory.

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G. Hétet, J. J. Longdell, M. J. Sellars, P. K. Lam, B. C. Buchler. 2008-11-14. Multi-Modal Properties and Dynamics of the Gradient Echo Quantum Memory. https://doi.org/10.1103/physrevlett.101.203601

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