Re: Truly Random Numbers On A Quantum Computer??

Mike Spencer <mds@bogus.nodomain.nowhere> wrote or quoted:

As a tech and math amateur, I made a setup to try to extract random
numbers from serial images of a plasma ball taken by a consumer-grade
web cam.

  Even stuff like the current CPU load or the exact time right
  now adds a bit of "entropy." Plus, my computer here has a
  microphone input that probably picks up some noise too.
  I'm guessing you could get roughly evenly distributed values
  in a certain range by using modulo or XOR operations on that.

  The stats for quantum random numbers can differ from those of
  classical random numbers - but honestly, asking whether "quantum
  randomness" or "classical randomness" is the "real randomness"
  seems kind of pointless to me. Random values for observables are
  definitely central to quantum physics, though whether the world
  is fundamentally deterministic or random is still not fully
  understood! ("Measurement problem in quantum physics").

  Here's something I've posted before in comp.lang.javascript,
  in <randomness-20170601030554@ram.dialup.fu-berlin.de>:

|I'd say, a bit source is truly random when the probability
|of any party to correctly guess the next bit is 0.5.
|
|(Possibly interesting in this context:
|
|"In contrast with software-generated randomness (called
|pseudo-randomness), quantum randomness is provable
|incomputable, i.e., it is not exactly reproducible by any
|algorithm. We provide experimental evidence of incomputability
|--- an asymptotic property --- of quantum randomness by
|performing finite tests of randomness inspired by algorithmic
|information theory."
|
|arXiv.org > quant-ph > arXiv:1004.1521
|
|and also
|
|arXiv:quant-ph/0611029v2
|
|.)

  .