Physics, Astronomy & Cosmology / Re: What happens to a pair of entangled quanta if one of them fell in a Black Hole ?« on: 17/01/2024 09:25:23 »
Quote from: neilep
if one (entangled) particle is destroyed the other can happily enjoy a solo career ?Having entangled particles is not rare - it is the normal situation for most things in the universe.
- Every time a particle bumps into another (directly or indirectly), their quantum states become entwined/entangled.
- Pretty soon, every particle on Earth is entangled with every other particle on Earth.
- It takes longer, but particles on Earth can become entangled by photons from the star Sirius.
It is the exception to have a particle which is in a known quantum state - it takes a lot of work to get it into a known state, and it is easily disrupted by coming into contact with light, heat or sound in the environment, effectively entangling it once again with the unknown quantum state of "the universe".
So an entangled particle falling into a black hole is quite normal, and the rest of the surrounding universe continues unaffected - although the plasma in the accretion disk may not enjoy this liberty for very much longer...
So don't ewe stray beyond the horizon of your paddock; in that event you may become entangled with the fence (and by extension, the whole Earth).
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