“Two-Photon” Coincidence Imaging with a Classical Source
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- 26 August 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 89 (11), 113601
- https://doi.org/10.1103/physrevlett.89.113601
Abstract
Coincidence imaging is a technique that extracts an image of a test system from the statistics of photons transmitted by a reference system when the two systems are illuminated by a source possessing appropriate correlations. It has recently been argued that quantum entangled sources are necessary for the implementation of this technique. We show that this technique does not require entanglement, and we provide an experimental demonstration of coincidence imaging using a classical source. We further find that any kind of coincidence imaging technique which uses a “bucket” detector in the test arm is incapable of imaging phase-only objects, whether a classical or quantum source is employed.Keywords
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