Photon Switching by Quantum Interference
- 26 October 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 81 (17), 3611-3614
- https://doi.org/10.1103/physrevlett.81.3611
Abstract
We describe a four-state atomic system that absorbs two photons, but does not absorb one photon. As a switch, in the ideal limit, it operates at an energy cost of one photon per switching event.Keywords
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