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

Experimental QG

  1. Jun 12, 2013 #1

    marcus

    User Avatar
    Science Advisor
    Gold Member
    Dearly Missed

    Sabine Hossenfelder recently wrote a blog post containing this parenthetical remark:
    "(I had meant to write a summary of which possible experiments for quantum gravity pheno are presently being discussed and how plausible I think they are to deliver results, but I got distracted by Dyson’s above mentioned paper on graviton detection. The summary will follow some other time.)"

    Sabine's 6 June 2013 post:
    http://backreaction.blogspot.com/2013/06/quantum-gravity-phenomenology-neq.html

    The issue of experimental detection of QG effects (in experiments that involve both GR and QM in some essential interconnected way, e.g. Earth gravitational field and interferometry) is an interesting one. In her 6 June post, Sabine quotes George Musser to the effect that

    “[Q]uantum gravity” and “experiment” are… like peanut butter and chocolate. They actually go together quite tastily.

    That was from George Musser's SciAm blog post, "Could simple experiments...?"
    http://blogs.scientificamerican.com...ments-reveal-the-quantum-nature-of-spacetime/

    As examples of a possible experiments Musser talks about some work published in Nature Communications (October 2011) by the Vienna group of C. Brukner. The Nature article is free online and, though technical in parts, was written to be fairly widely understood:
    http://www.nature.com/ncomms/journal/v2/n10/pdf/ncomms1498.pdf?WT.ec_id=NCOMMS-20111018

    The Brukner group co-authors also have a more pictorial/intuitive discussion of their proposals here:
    "Quantum Complementarity Meets Gravitational Redshift"
    http://www.2physics.com/2012/01/quantum-complementarity-meets.html
     
    Last edited: Jun 12, 2013
  2. jcsd
  3. Jun 15, 2013 #2
    Thanks marcus, interesting reading again! The experimental optimism is refreshing :smile:.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook