Two-Photon Blockade in an Atom-Driven Cavity QED System
| Autor: | Karl Nicolas Tolazzi, Gerhard Rempe, Christoph Hamsen, Tatjana Wilk |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Quantum Physics Photon Anharmonicity FOS: Physical sciences General Physics and Astronomy Physics::Optics 01 natural sciences 010305 fluids & plasmas Blockade law.invention Optical nonlinearity Two-photon excitation microscopy law Optical cavity 0103 physical sciences Atom Atomic physics Quantum Physics (quant-ph) 010306 general physics Absorption (electromagnetic radiation) |
| Zdroj: | Physical review letters. 118(13) |
| ISSN: | 1079-7114 |
| Popis: | Photon blockade is a dynamical quantum-nonlinear effect that occurs in driven systems with an anharmonic excitation ladder. For a single atom strongly coupled to an optical cavity, we show that driving the atom gives a decisively larger optical nonlinearity than driving the cavity. This enhances single-photon blockade and allows for the implementation of two-photon blockade where the absorption of two photons suppresses the absorption of further photons. As a signature, we report on three-photon antibunching with simultaneous two-photon bunching observed in the light emitted from the cavity. Our experiment constitutes a significant step towards multi-photon quantum-nonlinear optics. paper (6 pages, 5 figures) + supplement (6 pages, 5 figures) |
| Databáze: | OpenAIRE |
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