Aspect, Clauser, and Zeilinger won the prize for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science.
The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Physics 2022 to Alain Aspect, John Clauser, and Anton Zeilinger for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science.
Their ground-breaking experiments with entangled quantum states, in which two particles behave as if they are a single unit even when separated.The root of the study dates back to the 60s, applications for quantum mechanics' intangible effects are beginning to emerge. Today, a wide range of research is being done on quantum networks, computers, and secure quantum encrypted communication.permits two or more particles to coexist in an entangled state is a crucial aspect of this advancement.
Whether the correlation was caused by hidden variables—instructions that tell the particles in an entangled pair whose result they should provide in an experiment—was debated for a very long time.John Clauser expanded on John Bell's theories, which resulted in an actual experiment. His measurements, which obviously violated a Bell inequality, supported quantum theory when they were made. This indicates that a theory incorporating hidden variables cannot displace quantum mechanics.
“It has become increasingly clear that a new kind of quantum technology is emerging. We can see that the laureates’ work with entangled states is of great importance, even beyond the fundamental questions about the interpretation of quantum mechanics,” says Anders Irbäck, Chair of the Nobel Committee for Physics.
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