Cancellation of atmospheric turbulence effects in entangled two-photon beams
arXiv:1202.3195 · doi:10.1103/PhysRevA.88.053836
Abstract
Turbulent airflow in the atmosphere and the resulting random fluctuations in its refractive index have long been known as a major cause of image deterioration in astronomical imaging and figures among the obstacles for reliable optical communication when information is encoded in the spatial profile of a laser beam. Here we show that using correlation imaging and a suitably prepared source of photon pairs, the most severe of the disturbances inflicted on the beam by turbulence can be cancelled out. Other than a two-photon light source, only linear passive optical elements are needed and, as opposed to adaptive optics techniques, our scheme does not rely on active wavefront correction.
5 pages, 3 figures
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Cited by in corpus (8)
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- Universal entanglement decay in atmospheric turbulence
- Resilience of hybrid optical angular momentum qubits to turbulence
- Probing free-space quantum channels with laboratory-based experiments
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