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Few-photon storage on a second timescale by electromagnetically induced transparency in a doped solid

Hain, Marcel ; Stabel, Markus ; Halfmann, Thomas (2022):
Few-photon storage on a second timescale by electromagnetically induced transparency in a doped solid. (Publisher's Version)
In: New Journal of Physics, 24 (2), IOP Publishing, e-ISSN 1367-2630,
DOI: 10.26083/tuprints-00020641,
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Item Type: Article
Origin: Secondary publication DeepGreen
Status: Publisher's Version
Title: Few-photon storage on a second timescale by electromagnetically induced transparency in a doped solid
Language: English
Abstract:

We present the experimental demonstration of light storage towards the single photon level at a long storage time by electromagnetically induced transparency in a rare-earth ion-doped Pr³⁺:Y₂SiO₅ crystal. We apply decoherence control by static magnetic fields and appropriately designed radio-frequency composite pulse sequences to prolong the storage time in the memory. A rare-earth ion-doped filter crystal prepared by optical pumping serves to efficiently separate the signal at the single photon level from optical noise. Multipass setups around the memory and the filter crystal improve the storage efficiency and filter selectivity. Already without decoherence control, the setup permits storage of single photons in the microsecond regime at a storage efficiency of 42%. With decoherence control we demonstrate storage of weak coherent pulses containing some 10 photons for up to 10 s at a storage efficiency of several percent. The experimental data clearly demonstrate the applicability of EIT light storage to implement a true quantum memory in Pr³⁺:Y₂SiO₅ at long storage times. The scientific findings and technical developments are of relevance also to other protocols and media for quantum information storage.

Journal or Publication Title: New Journal of Physics
Volume of the journal: 24
Issue Number: 2
Place of Publication: Darmstadt
Publisher: IOP Publishing
Collation: 11 Seiten
Uncontrolled Keywords: light storage, electromagentically induced transparency, rare-earth ion doped solid, single photon storage, long-term quantum memory
Classification DDC: 500 Naturwissenschaften und Mathematik > 530 Physik
Divisions: 05 Department of Physics > Institute of Applied Physics
Date Deposited: 11 Jul 2022 13:44
Last Modified: 08 Sep 2022 08:39
DOI: 10.26083/tuprints-00020641
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-206412
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20641
PPN: 498973581
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