Journal article

Inflation and squeezed quantum states

Abstract:: The inflationary cosmology is analyzed from the point of view of squeezed quantum states. As noted by Grishchuk and Sidorov, the amplification of quantum fluctuations into macroscopic perturbations which occurs during cosmic inflation is a process of quantum squeezing. We carefully develop the squeezed state formalism and derive the equations that govern the evolution of a gaussian initial state. We derive the power spectrum of density perturbations for a simple inflationary model and discuss its features. We conclude that the squeezed state formalism provides an interesting framework within which to study the amplification process, but,in disagreement with the claims of Grishchuk and Sidorov, that it does {\em not} provide us with any new physical results.

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APA Style

Albrecht, A., Ferreira, P., Joyce, M., & Prokopec, T. (1993). Inflation and squeezed quantum states. Phys.Rev.D, 50, 4807–4820.

MLA Style

Albrecht, A, et al. “Inflation and Squeezed Quantum States.” Phys.Rev.D, vol. 50, 1993, pp. 4807–20.

Chicago Style

Albrecht, A, P Ferreira, M Joyce, and T Prokopec. 1993. “Inflation and Squeezed Quantum States.” Phys.Rev.D 50: 4807–20.
Print

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Publisher copy:: 10.1103/PhysRevD.50.4807

Authors

+ Albrecht, A More by this author

Role:: Author

+ Ferreira, P More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Sub department:: Astrophysics
Role:: Author

+ Joyce, M More by this author

Role:: Author

+ Prokopec, T More by this author

Role:: Author

Journal:: Phys.Rev.D More from this journal
Volume:: 50
Pages:: 4807-4820
Publication date:: 1993-03-01
DOI:: 10.1103/PhysRevD.50.4807

Keywords:: hep-ph

astro-ph

gr-qc
Pubs id:: pubs:208119
UUID:: uuid:20c83fae-3188-445c-b57d-95ca9cbefb09
Local pid:: pubs:208119
Source identifiers:: 208119
Deposit date:: 2012-12-19
ARK identifier:: ark:/29072/ora_20c83fae3188445cb57d95ca9cbefb09

Terms of use

Copyright date:: 1993
Notes:: 33 pages, one section added, significant revisions, 6 figures (in
uuencoded file), Imperial/TP/92-93/21

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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