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Light and quantum tunneling

  1. Nov 20, 2014 #1
    Could a photon utilize quantum tunneling to escape the threshold of a black hole or the confines of the curvature of space-time? Could any particle for that matter?
     
  2. jcsd
  3. Nov 20, 2014 #2

    Simon Bridge

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    You could probably work it out - what is the condition needed for quantum tunnelling?
     
  4. Nov 21, 2014 #3
    Particles of the same type are indistinguishable, so you can't really say if that photon came from inside the black hole. But black holes do emit photons through Hawking radiation.
     
  5. Nov 21, 2014 #4

    Simon Bridge

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    The mechanism for Hawking radiation has the particles coming from just outside the event horizon.

    Dealing with black holes is tricky because you need a careful description of the observer.
     
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