2022 Nobel Prize in Physics
This year’s Nobel Prize for Physics marks another milestone in quantum physics. It has been dubbed a revolution in the making, with many possibilities for applications in quantum computation, quantum cryptography, and quantum networks. John Stewart Bell, in 1964, came up with a mathematical way of testing whether quantum mechanics is compatible with the local hidden variable theory. After further improvements, these inequalities were named Bell’s inequalities. John Closer and Alain Aspect have been honored to experimentally show a violation of Bell’s inequalities. The common concept in their work is quantum entanglement. This is a quirk of quantum mechanics which allows two or more particles to exist in an ‘entangled state’ such that what happens to one particle affects the others immediately, irrespective of how far they may be.