Heralded atomic-ensemble quantum memory for photon polarization states

被引：1

作者：

Tanji, Haruka ^{[1
,2
,3
]}

Simon, Jonathan ^{[1
,2
,3
]}

Ghosh, Saikat ^{[2
,3
]}

Bloom, Benjamin ^{[2
,3
]}

Vuletic, Vladan ^{[2
,3
]}

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] MIT, Dept Phys, MIT Harvard Ctr Ultracold Atoms, Cambridge, MA 02139 USA

[3] MIT, Elect Res Lab, Cambridge, MA 02139 USA

来源：

PHYSICA SCRIPTA | 2009年 / T135卷

关键词：

SINGLE PHOTONS; LIGHT;

D O I：

10.1088/0031-8949/2009/T135/014010

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe the mapping of quantum states between single photons and an atomic ensemble. In particular, we demonstrate a heralded quantum memory based on the mapping of a photon polarization state onto a single collective-spin excitation (magnon) shared between two atomic ensembles. The polarization fidelity above 90(2)% for any input polarization far exceeds the classical limit of 2/3. The process also constitutes a quantum non-destructive probe that detects and regenerates a photon without measuring its polarization.

引用

页数：4

共 15 条

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