All-Optical Switch and Transistor Gated by One Stored Photon
Abstract
The realization of an all-optical transistor where one 'gate' photon controls a 'source' light beam, is a long-standing goal in optics. By stopping a light pulse in an atomic ensemble contained inside an optical resonator, we realize a device in which one stored gate photon controls the resonator transmission of subsequently applied source photons. A weak gate pulse induces bimodal transmission distribution, corresponding to zero and one gate photons. One stored gate photon produces fivefold source attenuation, and can be retrieved from the atomic ensemble after switching more than one source photon. Without retrieval, one stored gate photon can switch several hundred source photons. With improved storage and retrieval efficiency, our work may enable various new applications, including photonic quantum gates, and deterministic multiphoton entanglement.
Keywords
Cite
@article{arxiv.1401.3194,
title = {All-Optical Switch and Transistor Gated by One Stored Photon},
author = {Wenlan Chen and Kristin M. Beck and Robert Bücker and Michael Gullans and Mikhail D. Lukin and Haruka Tanji-Suzuki and Vladan Vuletić},
journal= {arXiv preprint arXiv:1401.3194},
year = {2014}
}
Comments
20 pages, 5 figures. Published in Science. Includes supplemental information