Rendell, Nicola orcid.org/0000-0003-3111-2710 (2018) Large-distance behavior of the massless vector two-point function in de Sitter spacetime. International Journal of Modern Physics D, 27 (11). (In Press)
Abstract
We study the long-distance behaviour of the massless vector propagator in $n$-dimensional de Sitter spacetime, where $n \geq 4$. Specifically, we consider the massless limit of the vector propagator in the Stueckelberg theory, which is an extension of Proca theory, with an additional gauge-fixing term. We work to leading order in the de Sitter-invariant distance $Z$ to show that, in the large $Z$ limit, this propagator tends to a gauge dependent constant, where the gauge worked in is described by the Stueckelberg parameter $\xi$. In the Landau gauge, where $\xi=0$, this constant is found to be 0. This result is in agreement with the 4 dimensional case discussed by Youssef.
Metadata
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Copyright, Publisher and Additional Information: | This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details | ||||
Keywords: | de Sitter spacetime; massless vector propagator; QFT in curved spacetime | ||||
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Institution: | The University of York | ||||
Academic Units: | The University of York > Faculty of Sciences (York) > Mathematics (York) | ||||
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Depositing User: | Ms Nicola Rendell | ||||
Date Deposited: | 22 Aug 2018 13:31 | ||||
Last Modified: | 29 Mar 2019 01:43 | ||||
Status: | In Press | ||||
Publisher: | World Scientific | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1142/S0218271818430058 |