Science
John Stewart Bell
Theoretical physicist of quantum foundations
Also known as John Bell · J. S. Bell
Photograph · Image credit
Who they are
John Stewart Bell examined whether a local hidden-variable account could reproduce quantum predictions. His 1964 paper derived a mathematical constraint that made the debate experimentally testable. The work turned a dispute about underlying explanations into a comparison between definite predictions, while leaving laboratory tests to later investigators.
He anchors the timeline’s move from philosophical disagreement about quantum mechanics toward experimental tests.
Selected contributions
Selected works
Academic paper · 1964
On the Einstein Podolsky Rosen paradox
Bell derives a mathematical incompatibility between a specified local hidden-variable account and quantum predictions. The result identifies an experimentally testable constraint; this paper itself does not report a laboratory violation.
Reading scope & citation
Reuses the input’s documented prior inspection: Supporting prose in introduction, formulation and conclusion inspected. OCR omits some equations; no independent proof verification. No fresh full-work reread in this directory pass.
In the timeline
Biography sources & portrait credit
- On the Einstein Podolsky Rosen paradox ↗Physics Physique Fizika / American Physical Society
Portrait credit
CERN. CC BY 4.0. Via Wikimedia Commons.
Photograph. Cropped to 4:5, resized to 320 × 400 and converted to WebP.
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