Imperial College London
Alternate

Professor Halliwell

Faculty of Natural Sciences, Department of Physics

Professor in Theoretical Physics
 
 
 
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Contact

 

+44 (0)20 7594 7831j.halliwell

 
 
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Assistant

 

Mrs Graziela De Nadai-Sowrey +44 (0)20 7594 7843

 
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Location

 

521Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Dorronsoro:2018:10.1103/PhysRevLett.121.081302,
author = {Dorronsoro, JD and Halliwell, JJ and Hartle, JB and Hertog, T and Janssen, O and Vreys, Y},
doi = {10.1103/PhysRevLett.121.081302},
journal = {Physical Review Letters},
title = {Damped perturbations in the no-boundary state},
url = {http://dx.doi.org/10.1103/PhysRevLett.121.081302},
volume = {121},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We evaluate the no-boundary path integral exactly in a Bianchi type IX minisuperspace with two scale factors. In this model the no-boundary proposal can be implemented by requiring one scale factor to be zero initially together with a judiciously chosen regularity condition on the momentum conjugate to the second scale factor. Taking into account the nonlinear backreaction of the perturbations we recover the predictions of the original semiclassical no-boundary proposal. In particular we find that large perturbations are strongly damped, consistent with vacuum state wave functions.
AU  - Dorronsoro,JD
AU  - Halliwell,JJ
AU  - Hartle,JB
AU  - Hertog,T
AU  - Janssen,O
AU  - Vreys,Y
DO  - 10.1103/PhysRevLett.121.081302
PY  - 2018///
SN  - 0031-9007
TI  - Damped perturbations in the no-boundary state
T2  - Physical Review Letters
UR  - http://dx.doi.org/10.1103/PhysRevLett.121.081302
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000442195300004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/63079
VL  - 121
ER  -
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