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Aspect's experiment was the first quantum mechanics experiment to demonstrate the violation of Bell's inequalities with photons using distant detectors. Its 1982 result allowed for further validation of the quantum entanglement and locality principles.
Abstract. The linear-polarization correlation of pairs of photons emitted in a radiative cascade of calcium has been measured. The new experimental scheme, using two-channel polarizers (i.e., optical analogs of Stern-Gerlach filters), is a straightforward transposition of Einstein-Podolsky-Rosen-Bohm gedankenexperiment.
- Alain Aspect, Philippe Grangier, Gérard Roger
- 1982
Alain Aspect (French: ⓘ; born 15 June 1947) is a French physicist noted for his experimental work on quantum entanglement.
In 1981–1982, Alain Aspect conducted groundbreaking experiments using entangled light particles, photons. These and other experiments confirm that quantum mechanics is correct and pave the way for quantum computers, quantum networks and quantum encrypted communication.
Alain Aspect, Jean Dalibard, and Gérard Roger. Phys. Rev. Lett. 49, 1804 – Published 20 December 1982. See Focus story: Nobel Prize: Quantum Entanglement Unveiled. An article within the collection: The Physical Review Journals Celebrate The International Year of Light and the Letters from the Past - A PRL Retrospective. More. PDF Export Citation.
- Alain Aspect, Jean Dalibard, Gérard Roger
- 1982
Dec 21, 2022 · Parallel to the new experiments with entanglement, there was yet another surprise in store for Aspect. Since late 1980s, physicists began to conjecture about the use of entanglement, the physical effect brought to light by research on Bell’s theorem for quantum computing and cryptography.
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6 days ago · An experiment conducted by the French physicist Alain Aspect (1947– ) and his colleagues in the early 1980s to test Bell's inequality (see Bell's theorem). The experiment involves producing pairs of photons from a source of excited calcium ions.
