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Single-Photon Storage in a Ground-State Vapor Cell Quantum Memory

Buser, Gianni and Mottola, Roberto and Cotting, Björn and Wolters, Janik and Treutlein, Philipp (2022) Single-Photon Storage in a Ground-State Vapor Cell Quantum Memory. PRX Quantum, 3 (2). American Physical Society. doi: 10.1103/PRXQuantum.3.020349. ISSN 2691-3399.

Full text not available from this repository.

Official URL: https://dx.doi.org/10.1103/PRXQuantum.3.020349

Abstract

Interfaced single-photon sources and quantum memories for photons together form a foundational component of quantum technology. Achieving compatibility between heterogeneous, state-of-the-art devices is a long-standing challenge. We built and successfully interfaced a heralded single-photon source based on cavity-enhanced spontaneous parametric down-conversion in periodically poled potassium titanyl phosphate and a matched memory based on electromagnetically induced transparency in warm 87 Rb vapor. The bandwidth of the photons emitted by the source is 370 MHz, placing its speed in the technologically relevant regime while remaining well within the acceptance bandwidth of the memory. Simultaneously, the experimental complexity is kept low, with all components operating at or above room temperature. Read-out noise of the memory is considerably reduced by exploiting polarization selection rules in the hyperfine structure of spin-polarized atoms. For the first time, we demonstrate single-photon storage and retrieval in a ground-state vapor cell memory, with g2=0.177(23) demonstrating the single-photon character of the retrieved light. Our platform of single-photon source and atomic memory is attractive for future experiments on room-temperature quantum networks operating at high bandwidth.

Item URL in elib:https://elib.dlr.de/187455/
Document Type:Article
Title:Single-Photon Storage in a Ground-State Vapor Cell Quantum Memory
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Buser, GianniUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mottola, RobertoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cotting, BjörnUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wolters, JanikUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Treutlein, PhilippUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:2022
Journal or Publication Title:PRX Quantum
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:3
DOI:10.1103/PRXQuantum.3.020349
Publisher:American Physical Society
ISSN:2691-3399
Status:Published
Keywords:quantenspeicher, quantennetzwerk
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Detectors for optical instruments
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Wolters, Janik
Deposited On:14 Jul 2022 08:53
Last Modified:14 Jul 2022 08:53

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