Suppressing Spectral Diffusion of the Emitted Photons with Optical Pulses
Abstract
In many quantum architectures the solid-state qubits, such as quantum dots or color centers, are interfaced via emitted photons. However, the frequency of photons emitted by solid-state systems exhibits slow uncontrollable fluctuations over time (spectral diffusion), creating a serious problem for implementation of the photon-mediated protocols. Here we show that a sequence of optical pulses applied to the solid-state emitter can stabilize the emission line at the desired frequency. We demonstrate efficiency, robustness, and feasibility of the method analytically and numerically. Taking nitrogen-vacancy (NV) center in diamond as an example, we show that only several pulses, with the width of 1 ns, separated by few ns (which is not difficult to achieve) can suppress spectral diffusion. Our method provides a simple and robust way to greatly improve the efficiency of photon-mediated entanglement and/or coupling to photonic cavities for solid-state qubits.
Keywords
Cite
@article{arxiv.1512.05754,
title = {Suppressing Spectral Diffusion of the Emitted Photons with Optical Pulses},
author = {H. F. Fotso and A. E. Feiguin and D. D. Awschalom and V. V. Dobrovitski},
journal= {arXiv preprint arXiv:1512.05754},
year = {2016}
}
Comments
accepted to Physical Review Letters, Supplemental Material included