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Abstract: 

All clocks are necessarily irreversible and thus subject to uncertainty. In the classical case the uncertainty arises from thermal noise. Their precision is limited by thermodynamics.  In the quantum case the uncertainty arise from the nature of quantum measurement. I will discuss a number of examples of quantum clocks and highlight the key role played by measurement.  I will discuss the implications for our understanding of physical time, a quantum theory of gravity and some philosophical musings. 

Posted on behalf of: Department of Physics and Astronomy
Further information: Previous talks can be found at /research/centres/sussex-centre-for-quantum-technologies/showcase/seminars
Last updated: Wednesday, 27 November 2024