Physics
Scientific paper
Jan 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvd..45..499g&link_type=abstract
Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 45, Issue 2, 15 January 1992, pp.499-506
Physics
11
Exact Solutions
Scientific paper
The possible quantum state of wormholes or little baby universes should be described by a nonfactorizable density matrix given by the path integral over the class of asymptotically flat four-geometries and asymptotically vanishing matter-field configurations which suitably match the prescribed data on three-surfaces which do not divide the manifold on the inner boundary. An instanton is here obtained which can represent such a nonsimply connected wormhole manifold, and is used to evaluate the asymptotic effective interaction of the resulting correlated baby universes with ordinary quantum fields at low energies in the Fock representation. It is argued that the demand of locality on the interacting quantum field commutators is no longer valid for correlated baby universes, and it is therefore concluded that quantum coherence in the matter-field sector is lost as a consequence of the interaction with nonsimply connected wormholes. A proposal is advanced that wormholes may provide us with a complementary quantum state sector that would induce the collapse of the state vector in the quantum measurement of any observable for ordinary microscopic matter systems.
No associations
LandOfFree
Regaining quantum incoherence for matter fields 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 Regaining quantum incoherence for matter fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Regaining quantum incoherence for matter fields will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-940340