3 ms·
I took it to refer to the various quantum no-go theorems that prohibit using entaglement as a means to transmit information in a spacelike manner without an acc
by marginalia_nu 3y ago
I took it to refer to the various quantum no-go theorems that prohibit using entaglement as a means to transmit information in a spacelike manner without an accompanying timelike counterpart.
I don't think many physicists will argue they are wrong.
- bowsamic 3y agoI agree, but that doesn't rule out non-local interactions in general
- kgwgk 3y agoDepends on the definition of “interaction”.
- bowsamic 3y agoTwo systems affecting each other
- kgwgk 3y agoThen the non-locality of entanglement doesn’t get you that because it concerns a single system.
- bowsamic 3y agoEven so, we still call it interaction. And it still raises questions about quantum gravity.
- kgwgk 3y agoSo much for your own definition of “interaction”…
- bowsamic 3y agoWhy are you being rude to me?
- kgwgk 3y agoThat was not my intention. If there is a non-rude way of conveying the message “when I said that it depends on the definition of interaction you gave me one and then you told me to ignore it” please assume that I had written that instead.
- anotheraccount9 3y agoI see what you did there
- marginalia_nu 3y agoIt doesn't rule out non-local interactions as in general we can rule out local non-hidden variables but not global ones. What these party-pooper theorems do is largely rule out being able to differentiate non-local interactions from local interactions... which doesn't mean they don't exist, but if they do, there's large pieces of the puzzle missing before we can show they do.
- qubex 3y agoTo be perfectly frank, quantum entanglement and wormholes are just the manners in which QFT and GR respectively manifest the concepts of nonlocality. That’s my understanding of the ER=EPR dictum, anyway: physics is fundamentally nonlocal, and these are the means by which the two leading theories express that nonlocality within their own lexicon of information/observation and curvature/trajectories (respectively).
- philipov 3y agoI think ER=EPR still implies physics is local, but locality is dynamic rather than static. It is a mechanism by which spacetime can be constructed from quantum physics, but all the physics still takes place locally on it.