Abstract
We study transverse spatial coherence of approximately localized single-photon states. We demonstrate nonlocal control over single-photon spatial coherence via projective measurements of an entangled twin and provide a theoretical interpretation from quantum coherence theory. Our results show that the spatial coherence of a single-photon state behaves similarly to that of a classical optical field, although the coincidence measurement adds a degree of freedom.
Original language | English (US) |
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Article number | 023801 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 82 |
Issue number | 2 |
DOIs | |
State | Published - Aug 2 2010 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics