Nondestructive photon detection using a single rare-earth ion coupled to a photonic cavity
Chris O’Brien, Tian Zhong, Andrei Faraon +1 more
We study the possibility of using single rare-earth ions coupled to a photonic cavity with high cooperativity for performing nondestructive measurements of photons, which would be useful for global quantum networks and photonic quantum computing. We calculate the achievable fidelity as a function of the parameters of the rare-earth ion and photonic cavity, which include the ion's optical and spin dephasing rates, the cavity linewidth, the single-photon coupling to the cavity, and the detection efficiency. We suggest a promising experimental realization using current state-of-the-art technology in Nd:${\mathrm{YVO}}_{4}$.
arXiv:1608.06679•Physical Review A•Oct 10, 2016•28 citations