Entanglement-Induced Two-Photon Transparency
- 3 March 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 78 (9), 1679-1682
- https://doi.org/10.1103/physrevlett.78.1679
Abstract
The rate of absorption of entangled photon pairs is linear in the photon-flux density. We demonstrate that the two-photon absorption cross section is a nonmonotonic function of the entanglement time; it vanishes for certain energy-level configurations and values of the entanglement time. This entanglement-induced two-photon transparency arises from the coherent summation of transition-amplitude contributions over the finite entanglement time. As an example, the entangled two-photon cross section for the electronic transition in atomic hydrogen is obtained.
Keywords
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