Skip to main content
11 events
when toggle format what by license comment
Aug 26, 2020 at 16:22 comment added Jirka Hanika @annav - Thank you!
Aug 23, 2020 at 5:23 comment added anna v @JirkaHanika that effective quantization of gravity works in first order, but when the fool toolkit of QFT is applied there are divergences of course not seen in real life.(as classical gravity works ). That is why a lot of theoretical physicists put their money andtheir work on string theories, which have quantization of gravity, but unfortunately no unique string theory has been found. Future high energy experiments might find supersummetry ( necessary for strings) and further constraints to lead to a theory of everything (strings embed the standard model which has the other three interac)
Aug 22, 2020 at 16:27 comment added Jirka Hanika This answer makes me think that somebody already has a Theory of Everything, except that they usually ran out of time and of grant money whenever they tried to use it. What am I missing? Perhaps the fact that Theory of Everything isn't needed with the simplest and thus strongest pure gravity diagrams, but only a bit later in the enumeration where QED and gravitons start to appear in the very same diagram?
Aug 21, 2020 at 19:44 history edited JEB CC BY-SA 4.0
undid previous edit (made in error). Again, the lag.
Aug 21, 2020 at 18:29 comment added probably_someone On the subject of ultra-cold neutron experiments, the UCN$\tau$ Collaboration is making a neutron lifetime measurement by putting ultra-cold neutrons in an open-topped bowl made of magnets. Gravity keeps them from spilling over, and the neutron magnetic dipole moment keeps them from falling through.
Aug 21, 2020 at 17:34 history edited JEB CC BY-SA 4.0
added a transitional sentence that I accidentally deleted in the OP (laggy internet).
Aug 20, 2020 at 20:38 comment added Deschele Schilder Best answer! The only thing missing is the outcome of the cold neutron experiments in a gravitational field which showed a change in the wavefunction's phase. I didn't read the links though.
Aug 20, 2020 at 20:35 history edited Deschele Schilder CC BY-SA 4.0
added 11 characters in body
Aug 20, 2020 at 20:28 history edited Deschele Schilder CC BY-SA 4.0
added 1 character in body
Aug 20, 2020 at 19:48 history edited JEB CC BY-SA 4.0
added 47 characters in body
Aug 20, 2020 at 19:42 history answered JEB CC BY-SA 4.0