Deterministic and Robust Entanglement of Nitrogen Vacancy Centers using Low-Q Photonic Crystal Cavities

Abstract

We propose an experiment to generate deterministic entanglement between separate nitrogen vacancy (NV) centers mediated by the mode of a photonic crystal cavity. Using numerical simulations the applicability and robustness of the entanglement operation to parameter regimes achievable with present technology is investigated. We find that even with moderate cavity Q-factors of $10^4$ a concurrence of $c>0.6$ can be achieved within a time of $t_{max}\approx 150$~ns, while Q-factors of $10^5$ promise $c>0.8$. Most importantly, the investigated scheme is relative insensitive to spectral diffusion and differences between the optical transitions frequencies of the used NV centers.

5 pages, 5 figures

References in corpus (6)

• The Quantum Internet
• Coherent Population Trapping of Single Spins in Diamond Under Optical Excitation
• Ultrafast spectral diffusion measurement on nitrogen vacancy centers in nanodiamonds using correlation interferometry
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• Photon-Photon Entanglement with a Single Trapped Atom
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Cited by in corpus (3)

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• Nanoimplantation and Purcell enhancement of single NV centers in photonic crystal cavities in diamond
• Fast quantum state engineering via universal SU(2) transformation