期刊
SCIENCE
卷 341, 期 6147, 页码 768-770出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1238169
关键词
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资金
- NSF
- Air Force Office of Scientific Research
- NSF through the Graduate Research Fellowship [0645960]
- Fonds zur Forderung der wissenschaftlichen Forschung through the doctoral program CoQuS [W1210]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205554] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [969816, 1125846] Funding Source: National Science Foundation
- Austrian Science Fund (FWF) [W1210] Funding Source: Austrian Science Fund (FWF)
- Grants-in-Aid for Scientific Research [24840016] Funding Source: KAKEN
The realization of an all-optical transistor, in which 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 realized 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.
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