Delocalized quantum clocks and relativistic time dilation Speaker(s): Maximilian Lock
Abstract:
The theory of relativity associates a proper time with each moving object via its spacetime trajectory. In quantum theory on the other hand, such trajectories are forbidden. I will discuss an operation approach to exploring this conflict, considering the average time measured by a quantum clock in the weakfield, lowvelocity limit. Considering the role of the clockâs state of motion, one finds that all ``good'' quantum clocks experience the time dilation prescribed by general relativity for the most classical states of motion. For nonclassical states of motion, on the other hand, one finds that quantum interference effects give rise to a discrepancy between the proper time and the time measured by the clock. I will also describe how ignorance of the clock's state of motion leads to a larger uncertainty in the time as measured by the clock, a consequence of entanglement between the clock time and its centerofmass degrees of freedom. Date: 25/04/2019  3:30 pm
Series: Quantum Foundations
