NDLI: Stress Tensor Fluctuations and Stochastic Spacetimes

Content Provider	Springer Nature Link
Author	Ford, L. H.
Copyright Year	2000
Abstract	The physics of the quantum stress tensor operator is discussed. Although theproblem of defining the expectation values of this operator is reasonably wellunderstood, the fluctuations around the mean value are not so well understood.It is shown that the stress tensor correlation function can be decomposed intothree parts, one of which is finite and state dependent, one which is infinite inthe coincidence limit but state independent, and a cross term which is both statedependent and infinite in the coincidence limit. Possible physical interpretationsof each part are discussed. The fluctuations of the stress tensor in turn inducefluctuations of the spacetime geometry. The terms in the correlation functionwhich are singular in the coincidence limit seem to produce drastic fluctuationsof the geometry, leading to a stochastic spacetime. Whether these fluctuationsare observable is an unanswered question.
Starting Page	1803
Ending Page	1815
Page Count	13
File Format	PDF
ISSN	00207748
Journal	International Journal of Theoretical Physics
Volume Number	39
Issue Number	7
e-ISSN	15729575
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2000-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physics Quantum Physics Mathematical and Computational Physics Elementary Particles, Quantum Field Theory
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mathematics

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