Quantum-mechanical twin paradox

Quantum-mechanical twin paradox

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In the twin paradox of special relativity, an observer that travels along an accelerated trajectory at a high velocity will experience a smaller amount of elapsed time than an observer that remains at rest.This illustrates the fact that time is relative unlike the situation in classical physics where time is absolute.In a recent paper, Bushev et al (2016 New J.

Phys.http://dx.doi.

org/10.1088/1367-2630/18/9/093050 18 http://dx.doi.

org/10.1088/1367-2630/18/9/093050 ) showed that the read more twin paradox can also be demonstrated using a single electron that functions as a quantum-mechanical clock.The wave function of the electron can travel Vape Pen Batteries along two different paths simultaneously, which allows a measurement of the difference in proper times along the two trajectories using a single particle.

Quantum interference effects show that time cannot be thought of as a classical parameter even when associated with a single clock or observer.