Realisation of Hardy's Thought Experiment

Abstract

We present an experimental realisation of Hardy's thought experiment [Phys. Rev. Lett. {\bf 68}, 2981 (1992)], using photons. The experiment consists of a pair of Mach-Zehnder interferometers that interact through photon bunching at a beam splitter. A striking contradiction is created between the predictions of quantum mechanics and local hidden variable based theories. The contradiction relies on non-maximally entangled position states of two particles.

5 pages

References in corpus (4)

• Violation of Bell's inequality under strict Einstein locality conditions
• Observation of three-photon Greenberger-Horne-Zeilinger entanglement
• Violation of Bell inequalities by photons more than 10 km apart
• Quantum Mechanical Interaction-Free Measurements

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