The origin of entropy in the universe

Citation
A. Feinstein et Map. Sebastian, The origin of entropy in the universe, FOUND PH L, 13(2), 2000, pp. 133-145
Citations number
31
Categorie Soggetti
Physics
Journal title
FOUNDATIONS OF PHYSICS LETTERS
ISSN journal
08949875 → ACNP
Volume
13
Issue
2
Year of publication
2000
Pages
133 - 145
Database
ISI
SICI code
0894-9875(200004)13:2<133:TOOEIT>2.0.ZU;2-M
Abstract
We discuss the entropy generation in quantum tunneling of a relativistic pa rticle under the influence of a time-varying force with the help of squeezi ng formalism. It is shown that if one associates classical coarse grained e ntropy to the phase space volume, there is an inevitable entropy growth due to the changes in position and momentum variances. The entropy change can be quantified by a. simple expression Delta S = ln cosh 2r, where r is the squeeze parameter measuring the "height" and "width" of the potential barri er. We suggest that thc: universe could have acquired its initial entropy i n a quantum squeeze from "nothing" and briefly discuss the implications of our proposal.