Two-photon quantum interference from separate nitrogen vacancy centers in diamond

Hannes Bernien; Lilian Childress; Lucio Robledo; Matthew Markham; Daniel Twitchen; Ronald Hanson

doi:10.1103/PhysRevLett.108.043604

Two-photon quantum interference from separate nitrogen vacancy centers in diamond

Quantum Physics 2012-02-21 v2 Mesoscale and Nanoscale Physics

Authors: Hannes Bernien , Lilian Childress , Lucio Robledo , Matthew Markham , Daniel Twitchen , Ronald Hanson

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Abstract

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 non-resonantly 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.

Keywords

nitrogen-vacancy centers in diamond color centers in diamond quantum optics

Cite

@article{arxiv.1110.3329,
  title  = {Two-photon quantum interference from separate nitrogen vacancy centers in diamond},
  author = {Hannes Bernien and Lilian Childress and Lucio Robledo and Matthew Markham and Daniel Twitchen and Ronald Hanson},
  journal= {arXiv preprint arXiv:1110.3329},
  year   = {2012}
}

Two-photon quantum interference from separate nitrogen vacancy centers in diamond

Abstract

Keywords

Cite

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