Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Entanglement, Entropy and Energy

  1. May 23, 2012 #1
    I suppose the meta-question is: Where do I read about this? Engineering major, not physics. Worked through Penrose's book until the tensor calculus on manifolds chapter and then sank without a trace. The popularized descriptions of quantum physics are hopelessly incomplete and as Feynman pointed out, usually misleading.

    All electrons are identical. Imagine universe S with two electrons. Imagine universe E with two entangled electrons. The universes are different as we can do a physics experiment to tell the difference by detecting the entangled correlation. In S we have two things, the electrons. In E we have an electron just like all electrons, another identical electron, and a third thing, the entanglement. The entanglement must be a thing that exists since the universes are different and it can't be part of either or both of the electrons since all electrons are identical.

    Since it is a lot easier to break an entanglement than it is to create or maintain it, it seems that S must have higher entropy than E. The entanglement is real, it exists, it can be detected by a physics experiment. Since it exists it seems that it must have associated information and probably associated mass/energy unless it is some kind of weird mechanical attachment like a common half string end point on the holographic surface.

    Does entanglement have entropy? information? mass/energy? Is there a reading suggestion for this that is a bit easier than The Road to Reality? Or is this line of reasoning "not even wrong"?
     
  2. jcsd
  3. May 24, 2012 #2
    Entanglement is a constraint on the possible combinations of quantum numbers in the system. This is a decrease in the total number of possible combinations of quantum numbers, so it decreases the entropy.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Entanglement, Entropy and Energy
  1. Entanglement entropy (Replies: 1)

Loading...