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Open Quantum Systems Decoherence

Rephasing efficiency of sequences of phased pulses in spin-echo and light-storage experiments

arXiv
Authors: Genko T. Genov, Daniel Schraft, Thomas Halfmann

Year

2018

Paper ID

39360

Status

Preprint

Abstract Read

~2 min

Abstract Words

117

Citations

N/A

Abstract

We investigate the rephasing efficiency of sequences of phased pulses for spin echoes and light storage by electromagnetically induced transparency (EIT). We derive a simple theoretical model and show that the rephasing efficiency is very sensitive to the phases of the imperfect rephasing pulses. The obtained efficiency differs substantially for spin echoes and EIT light storage, which is due to the spatially retarded coherence phases after EIT light storage. Similar behavior is also expected for other light-storage protocols with spatial retardation or for rephasing of collective quantum states with an unknown or undefined phase, e.g., as relevant in single-photon storage. We confirm the predictions of our theoretical model by experiments in a Pr3+:Y2SiO5 crystal.

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  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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  • We investigate the rephasing efficiency of sequences of phased pulses for spin echoes and light storage by electromagnetically induced transparency (EIT).

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1812.10768 [2] arXiv https://arxiv.org/abs/1812.10768 [3] Publisher https://arxiv.org/abs/1812.10768

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