Decoherence in quantum Kaluza-Klein theories
Nuclear Physics BPublished 1 April 1991
Felicity Mellor
Citations6
SJR quartileQ1
SJR score0.87
SNIP0.88
Generate an AI Snapshot to get a quick, structured summary of this paper.
Study Snapshot
ObjectiveStudy objective
MethodsResearch methodology
PopulationPopulation studied
Sample sizeSample sizes
OutcomesStudy outcomes here
ResultsStudy results comes here
LimitationsResearch study limitations comes here
A concise AI-generated summary of the paper will appear here once you click Generate AI Snapshot.
Abstract
Kaluza-Klein theories permit a variety of compactifications and arbitrary scales for the internal space. There must be no quantum interference between these different possibilities. This paper demonstrates that in the Salam-Sezgin compactification interference between differently scaled internal spaces is suppressed. The calculation is carried out in the WKB approximation, and all questions of non-renormalizability are neglected.
Keywords
Physics and Astronomy
The European Physical Journal AQuantentheorie und f�nfdimensionale Relativit�tstheorie
2,751 Citations1926O. Klein
Nuclear Physics BVacuum configurations for superstrings
2,720 Citations1985Philip Candelas, Gary T. Horowitz +2 more
The European Physical Journal BThe emergence of classical properties through interaction with the environment
1,516 Citations1985Erich Joos, H. D. Zeh
Physics Letters BUnification of Yang-Mills theory and supergravity in ten dimensions
533 Citations1983George Chapline, N. S. Manton
Nuclear Physics BCalculation of gauge couplings and compact circumferences from self-consistent dimensional reduction
409 Citations1984Philip Candelas, Steven Weinberg
Nuclear Physics BSpontaneous compactification in six-dimensional Einstein-Maxwell theory
395 Citations1983S. Randjbar‐Daemi, Abdus Salam +1 more
Physics Letters BChiral compactification on Minkowski × S2 of N = 2 Einstein-Maxwell supergravity in six dimensions
285 Citations1984Abdus Salam, Ergin Sezgin
Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsDecoherence in quantum cosmology
250 Citations1989J. J. Halliwell
It is shown, in a simple homogeneous isotropic model, that the density matrix of the Universe will decohere if the long-wavelength modes of an inhomogeneous massless scalar field are traced out and the coherence width decreases as the scale factor increases, which has implications for the arrow of time.
Classical and Quantum GravityContinuous measurement of mini-superspace variables by higher multipoles
236 Citations1987Claus Kiefer
It turns out that in this way the 'intrinsic time variable' alpha is rendered a perfectly classical quantity in not allowing the observation of superpositions of different alpha , while phi can be regarded to be defined within the width of a narrow Gaussian.
Annals of PhysicsGravitational contribution to the Casimir energy in Kaluza-Klein theories
166 Citations1984Alan Chodos, Eric Myers
Physics Letters AEmergence of classical time from a universal wavefunction
149 Citations1986H. D. Zeh
Nuclear Physics BClassical and quantum cosmology of the Salam-Sezgin model
55 Citations1987J. J. Halliwell
Classical and Quantum GravityContinuous measurement of intrinsic time by fermions
31 Citations1989Claus Kiefer
