A spin foam model for general Lorentzian 4-geometries

Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

27 pages, 1 figure; v4: published version

Scientific paper

10.1088/0264-9381/27/18/185011

We derive simplicity constraints for the quantization of general Lorentzian 4-geometries. Our method is based on the correspondence between coherent states and classical bivectors and the minimization of associated uncertainties. For spacelike geometries, this scheme agrees with the master constraint method of the model by Engle, Pereira, Rovelli and Livine (EPRL). When it is applied to general Lorentzian geometries, we obtain new constraints that include the EPRL constraints as a special case. They imply a discrete area spectrum for both spacelike and timelike surfaces. We use these constraints to define a spin foam model for general Lorentzian 4-geometries.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A spin foam model for general Lorentzian 4-geometries does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A spin foam model for general Lorentzian 4-geometries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A spin foam model for general Lorentzian 4-geometries will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-238000

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.