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WS22/23 – Abstract
Dagmar Bruss
(Heinrich-Heine-Universität Düsseldorf)
9.2.2023
From Bell´s inequality to quantum information science (PRETALK for students at 15:30 h)
In 1964 John Bell designed a thought experiment that would allow to distinguish quantum mechanics from local hidden-variable theories. His mathematical constraints (and numerous variations of them) were later named Bell inequalities. In 2022 the Nobel Prize for Physics was awarded to Alain Aspect, John F. Clauser and Anton Zeilinger, “for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science”. This talk will offer an introduction to Bell inequalities, a glance at the achievements of the Nobel prize winners, and some insights into quantum secured communication, as an application of Bell inequality violation.
