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Heralded Single-Magnon Quantum Memory for Photon Polarization States

beimu1009 添加于 2009-8-9 20:45 | 1184 次阅读 | 0 个评论

作者
Tanji H, Ghosh S, Simon J, Bloom B, Vuletić V
摘要
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 . The process can be viewed as a nondestructive quantum probe where a photon is detected, stored, and regenerated without touching its—potentially undetermined—polarization. ©2009 The American Physical Society
详细资料
- 文献种类:期刊
- 期刊名称: Physical Review Letters
- 期刊缩写: Phys. Rev. Lett.
- 期卷页: 2009年第103卷第4期
- ISBN: 0031-9007
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