On Thursday, May 30, 2019 at 1:28:19 PM UTC-5, Philip Thrift wrote: > > > > Quantum Cheshire Cat effect may be explained by standard quantum mechanics. > > https://phys.org/news/2015-06-quantum-cheshire-cat-effect-standard.html > > @philipthrift >
Of course it is ordinary quantum mechanics. In the Heisenberg representation of an operator the evolution is dO/dt = i[O, H]. Different observables will have different commutation properties with the Hamiltonian and thus may evolve separately. > > On Thursday, May 30, 2019 at 1:02:12 PM UTC-5, Brent wrote: >> >> I wonder if philosophers have noticed that properties can be separated >> from objects in quantum mechanics, c.f. Cheshire Cat experiments? >> > There is no real distinction between an object and its properties in quantum mechanics. LC > >> Brent >> >> On 5/30/2019 5:50 AM, Tomas Pales wrote: >> >> >> On Wednesday, May 29, 2019 at 10:15:46 PM UTC+2, Jason wrote: >>> >>> Appears to predict the arithmetical reality: >>> >>> "There exists, unless I am mistake, an entire world consisting of the >>> totality of mathematical truths, which is accessible to us only through our >>> intelligence, just as there exists the world of physical realities; each >>> one is independent of us, both of them divinely created and appear >>> different only because of the weakness of our mind; but, for a more >>> powerful intelligence, they are one and the same thing, whose synthesis is >>> partially revealed in that marvelous correspondence between abstract >>> mathematics on the one hand and astronomy and all branches of physics on >>> the other." >>> >>> >>> https://monoskop.org/images/a/aa/Kurt_G%C3%B6del_Collected_Works_Volume_III_1995.pdf >>> on >>> page 323. >>> >>> Jason >>> >> >> In philosophy, the relation between abstract and concrete objects is >> called "instantiation", for example between the abstract triangle and >> concrete triangles. It is a relation whereby the abstract object is a >> property of the concrete objects and the concrete objects are instances of >> the abstract object. The instantation relation is regarded as primitive, >> similarly like the composition relation between a collection of objects and >> the objects in the collection. The instantiation relation may appear more >> mysterious though, because while it is quite easy to visualize a >> collection, it is impossible to visualize an abstract object. >> >> Abstract and concrete objects are existentially dependent on each other, >> because there can be no property without an object that has the property, >> and there can be no object that has no property. >> >> >> >> -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/5df103da-1aed-4166-8ce5-7c5b7446f178%40googlegroups.com.
