Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-11-29
Physics
High Energy Physics
High Energy Physics - Theory
6 pages, talk given at the XXVIII Spanish Relativity Meeting, Oviedo Spain, to appear in the proceedings
Scientific paper
10.1063/1.2218238
The holographic principle and the thermodynamics of de Sitter space suggest that the total number of fundamental degrees of freedom associated with any finite-volume region of space may be finite. The naive picture of a short distance cut-off, however, is hardly compatible with the dynamical properties of spacetime, let alone with Lorentz invariance. Considering the regions of space just as general ``subsystems'' may help clarifying this problem. In usual QFT the regions of space are, in fact, associated with a tensor product decomposition of the total Hilbert space into ``subsystems'', but such a decomposition is given a priori and the fundamental degrees of freedom are labelled, already from the beginning, by the spacetime points. We suggest a new strategy to identify ``localized regions'' as ``subsystems'' in a way which is intrinsic to the total Hilbert-space dynamics of the quantum state of the fields.
No associations
LandOfFree
Quantum degrees of freedom of a region of spacetime 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 Quantum degrees of freedom of a region of spacetime, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum degrees of freedom of a region of spacetime will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-715657