Popper's experiment with randomly paired photons in thermal state
1 Department of Physics, University of Maryland - Baltimore County, Baltimore, MD 21250, USA
2 Oakland Community College - Highland Lakes Campus, Waterford, MI 48327, USA
Received: 23 September 2014
Accepted: 15 December 2014
We realized Popper's thought experiment via the photon number fluctuation correlation measurement of random paired photons in thermal state. The experiment produces the same results as that of Kim and Shih in 1998 with entangled photon pairs, which agreed with Popper's prediction. Although the observation cannot be considered as a violation of the uncertainty relation as Popper believed, this experiment reveals a concern about nonlocal interference of a random photon pair, which involves the superposition of multi-photon amplitudes, and multi-photon detection events at a distance.
PACS: 42.50.-p – Quantum optics / 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.) / 42.50.Ar – Photon statistics and coherence theory
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