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QG/QM without spacetime

  1. Nov 4, 2007 #1
    I'm beginning a research on the different approaches to QG (or also
    calssical QM) where the attempt to introduce the notion of spacetime
    as an emergent concept is made. I would like to find for introductory
    material which describes in one (or few) papers these different
    approaches giving first an overview on the subject. Can anyone suggest
    some? If there is none, please suggest the approaches/theories/
    speculations (in string theory, CQG, or even alternative theories) you
    believe are actually the most interesting/promising in potentially
    describing physics where space and time no longer is a foundation but
    only a low energy emerging property.

    Thank you, Mark.
     
  2. jcsd
  3. Dec 23, 2007 #2
    On 3 Nov., 16:23, "astroques...@gmail.com" <astroques...@gmail.com>
    wrote:
    > I'm beginning a research on the different approaches to QG (or also
    > calssical QM) where the attempt to introduce the notion of spacetime
    > as an emergent concept is made.


    See gr-qc/0205035 for my approach.

    Ilja
     
  4. Dec 25, 2007 #3
    astroquest34@gmail.com wrote:
    > if there is none, please suggest the approaches/theories/
    > speculations (in string theory, CQG, or even alternative theories) you
    > believe are actually the most interesting/promising in potentially
    > describing physics where space and time no longer is a foundation but
    > only a low energy emerging property.


    There is a number of penetrating papers by J. Barbour
    http://arxiv.org/abs/gr-qc/0309089
    http://arxiv.org/abs/gr-qc/0012089 (and other related papers
    cited in the first reference above),
    as well as his book "The End of Times", (Oxford Univ Press, 2000).

    See also http://arxiv.org/abs/gr-qc/0610061 (pages 107-163),
    and a recent work http://arxiv.org/abs/0712.3660
    for my approach.
     
  5. Feb 5, 2009 #4
    Fotini Markopoulou write about emergent space-time.
    Markopoulou, F.: Space does not exist, so time can. (2008) (http://www.fqxi.org/community/forum/topic/376)

    Also
    Ambjorn, J., Jurkiewicz, J., Loll, R.: Self-Organizing Quantum Universe. Sci. Am. Jun, 42-49 (2008)
    Regards
     
  6. Feb 5, 2009 #5
    Theory of Anton Zeilinger and Caslav Brukner have also elements of emergentism, because it concetrates on quantum information (qubit) so without space.
     
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