| Literature DB >> 22540792 |
A Sipahigil1, M L Goldman, E Togan, Y Chu, M Markham, D J Twitchen, A S Zibrov, A Kubanek, M D Lukin.
Abstract
We demonstrate quantum interference between indistinguishable photons emitted by two nitrogen-vacancy centers in distinct diamond samples separated by two meters. Macroscopic solid immersion lenses are used to enhance photon collection efficiency. Quantum interference is verified by measuring a value of the second-order cross-correlation function g((2))(0)=0.35±0.04<0.5. In addition, optical transition frequencies of two separated nitrogen-vacancy centers are tuned into resonance with each other by applying external electric fields. An extension of the present approach to generate entanglement of remote solid-state qubits is discussed.Entities:
Year: 2012 PMID: 22540792 DOI: 10.1103/PhysRevLett.108.143601
Source DB: PubMed Journal: Phys Rev Lett ISSN: 0031-9007 Impact factor: 9.161