|
| related topics |
| {light, field, probe} |
| {level, atom, field} |
| {state, phys, rev} |
| {spin, pulse, spins} |
| {trap, ion, state} |
| {time, systems, information} |
|
Gradient Echo Quantum Memory for Light using Two-level Atoms
G. Hétet, J. J. Longdell, A. L. Alexander, P. K. Lam, M. J. Sellars
abstract: We propose a quantum memory for light that is analogous to the NMR gradient
echo. Our proposal is ideally perfectly efficient and provides simplifications
to current 3-level quantum memory schemes based on controlled inhomogeneous
broadening. Our scheme does not require auxiliary light fields. Instead the
input optical pulse interacts only with two-level atoms that have linearly
increasing Stark shifts. By simply reversing the sign of the atomic Stark
shifts, the pulse is retrieved in the forward direction. We present analytical,
numerical and experimental results of this scheme. We report experimental
efficiencies of up to 15% and suggest simple realizable improvements to
significantly increase the efficiency.
- oai_identifier:
- oai:arXiv.org:quant-ph/0612169
- categories:
- quant-ph
- comments:
- 4 pages, 4 figures
- arxiv_id:
- quant-ph/0612169
- created:
- 2006-12-19
- updated:
- 2007-07-10
Full article ▸
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