Heralded Single-Magnon Quantum Memory for Photon Polarization States
Name
Tanji-2009-Heralded Single-Magn.pdf
Size
959.89 KB
Format
Adobe PDF
Checksum (MD5)
cbb3dd544c6dee5fd6360bb8a09feed5
Author(s)
Simon, Jonathan
Ghosh, Saikat
Vuletic, Vladan
Bloom, Benjamin
Tanji, Haruka
Date Issued
July 2009
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Tanji, Haruka et al. “Heralded Single-Magnon Quantum Memory for Photon Polarization States.” Physical Review Letters 103.4 (2009): 043601. (C) 2010 The American Physical Society.
Version
Final published version
Abstract
We demonstrate a heralded quantum memory where a photon announces the mapping of a light polarization state onto a single collective-spin excitation (magnon) shared between two atomic ensembles. The magnon can be converted at a later time into a single polarized photon with polarization fidelity over 90(2)% for all fiducial input states, well above the classical limit of 2/3. The process can be viewed as a nondestructive quantum probe where a photon is detected, stored, and regenerated without touching its—potentially undetermined—polarization.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.103.043601
