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

Quantization of gravity

  1. Sep 23, 2013 #1


    User Avatar
    Gold Member

    A short but interesting way of using the CMBR to test the quatization of gravity, what do you think ?

    Lawrence M. Krauss (1,2), Frank Wilczek (3) ((1) Arizona State University, (2) Australian National Univeresity, (3) MIT)
    (Submitted on 20 Sep 2013)
    While many aspects of general relativity have been tested, and general principles of quantum dynamics demand its quantization, there is no direct evidence for that. It has been argued that development of detectors sensitive to individual gravitons is unlikely, and perhaps impossible. We argue here, however, that measurement of polarization of the Cosmic Microwave Background due to a long wavelength stochastic background of gravitational waves from Inflation in the Early Universe would firmly establish the quantization of gravity.
  2. jcsd
  3. Sep 23, 2013 #2


    User Avatar
    2017 Award

    Staff: Mentor

    Link to the paper

    I don't expect a detection of anything like that soon, but the idea looks interesting.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Quantization gravity Date
B Is gravity Emergent Feb 6, 2018
Is time quantized? Jan 13, 2015
Spacetime quantization Dec 1, 2012
Was energy already quantized 10^-43 seconds after the Big Bang? Apr 23, 2012
Cosmology and Energy Quantization in Matter Oct 22, 2008