Bell-type Polarization Experiment With Pairs Of Uncorrelated Optical Photons

Abstract

We present a Bell-type polarization experiment using two independent sources of polarized optical photons, and detecting the temporal coincidence of pairs of uncorrelated photons which have never been entangled in the apparatus. Very simply, our measurements have tested the quantum-mechanical equivalent of the classical Malus' law on an incoherent beam of polarized photons obtained from two separate and independent laser sources greatly reduced in intensities.The outcome of the experiment gives evidence of violation of the Bell-like inequalities. Drawing the conclusions of the present work, we invoke the distinction between the concepts of state-preparation and measurement to understand this result.

arXiv comment10 pages, 4 figures

References in corpus (8)

• Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
• Violation of Bell's inequality under strict Einstein locality conditions
• Significant-loophole-free test of Bell's theorem with entangled photons
• A strong loophole-free test of local realism
• Violation of Bell inequalities by photons more than 10 km apart
• Observation of measurement-induced entanglement and quantum trajectories of remote superconducting qubits
• Cosmic Bell Test: Measurement Settings from Milky Way Stars
• Progress towards Bell-type polarization experiment with thermal neutrons

Cited by in corpus (3)

• Contextuality-by-Default description of Bell tests: Contextuality as the rule not as an exception
• Quantum Nonlocality: how does Nature do it?
• Observations of Bell Inequality Violations with causal isolation between source and detectors