A reasonably simple description of this paper was released by Scientific American today:
Quantum Time Twist Offers a Way to Create Schrödinger’s Clock https://www.scientificamerican.com/article/quantum-time-twist-offers-a-way-to-create-schroedingers-clock/ The Schrödinger’s Cat thought experiment imagined placing an object in a quantum superposition of two states (cat is alive / cat is dead). The object exists in a superposition of those two states until it is "observed" or measured. This can be thought of as a repudiation of something we assume to be part of our reality -- counterfactual definiteness. https://en.wikipedia.org/wiki/Counterfactual_definiteness You can also imagine putting an object into a superposition of two proper times. https://en.wikipedia.org/wiki/Proper_time The main topic of the Nature article is placing a clock into into a superposition of different velocities, which results in a superposition of the different time dilations due to special relativity. This would result in a non-classical result when measuring the clock (atom or ion) in an experiment. -- Bill Byrom N5BB On Fri, Oct 23, 2020, at 6:13 AM, John Moran, Scawby Design wrote: > It's been mentioned many times here that Time-Nuts are continually chasing > down the more and more esoteric effects that make their clocks less than > perfectly accurate. I wonder whether any of them have got their clocks to the > state where corrections to quantum effects are now in their sights? > > The paper linked here in Nature Communications explains the upcoming problem - > > https://www.nature.com/articles/s41467-020-18264-4 > > Unfortunately, my mathematical skills are not up to working out the magnitude > of any errors. > > John > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
