Two-Photon Quantum Interference from Separate Nitrogen Vacancy Centers in Diamond

被引：220

作者：

Bernien, Hannes ^{[1
]}

Childress, Lilian ^{[2
]}

Robledo, Lucio ^{[1
]}

Markham, Matthew ^{[3
]}

Twitchen, Daniel ^{[3
]}

Hanson, Ronald ^{[1
]}

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci Delft, NL-2600 GA Delft, Netherlands

[2] Bates Coll, Dept Phys & Astron, Lewiston, ME 04240 USA

[3] Element Six Ltd, Ascot SL5 8BP, Berks, England

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 04期

关键词：

SOLID-STATE SPIN; ENTANGLEMENT; TIME; COMMUNICATION; REGISTER; EMISSION; DISTANCE; PHOTONS;

D O I：

10.1103/PhysRevLett.108.043604

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the observation of quantum interference of the emission from two separate nitrogen vacancy (NV) centers in diamond. Taking advantage of optically induced spin polarization in combination with polarization filtering, we isolate a single transition within the zero-phonon line of the nonresonantly excited NV centers. The time-resolved two-photon interference contrast of this filtered emission reaches 66%. Furthermore, we observe quantum interference from dissimilar NV centers tuned into resonance through the dc Stark effect. These results pave the way towards measurement-based entanglement between remote NV centers and the realization of quantum networks with solid-state spins.

引用

页数：5

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