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Alain Aspect
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french physicists
   
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If quantum theory is correct, the determination of an axis direction for polarisation measurement of one particle, forcing the wave function to 'collapse' onto that axis, will influence the measurement of its twin even if this is on a distant star. This influence occurs despite the experimenters concerned not knowing which axes have been chosen by their distant colleagues.

Aspect's experiments were considered to provide overwhelming support to the thesis that Bell's Inequalities are violated. However, his results were not completely conclusive, since there were so-called Loopholes that allowed for alternative explanations that comply with local realism. See Local Hidden Variable Theory .

After his works on Bell's inequalites, he turned toward studies of laser cooling of neutral atoms and is now mostly involved in various Bose-Einstein condensates related experiments.

Aspect was deputy director of the French "grande école" SupOptique until 1994. He is a member of the French "Academie des Sciences" and professor at the "Ecole Polytechnique".


SELECTED BIBLIOGRAPHY

  • ''Experimental Realization of Einstein-Podolsky-Rosen-Bohm Gedankenexperiment: A New Violation of Bell's Inequalities'', A. Aspect, P. Grangier, and G. Roger, Physical Review Letters, Vol. 49, Iss. 2, pp.91-94 (1982)

  • ''Experimental Test of Bell's Inequalities Using Time-Varying Analyzers'', A. Aspect, J. Dalibard and G. Roger, Physical Review Letters, Vol. 49, Iss. 25, pp. 1804-1807 (1982)



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