Citation

BibTex format

@article{Markkanen:2017:10.1007/JHEP01(2017)133,
author = {Markkanen, T and Rajantie, A},
doi = {10.1007/JHEP01(2017)133},
journal = {Journal of High Energy Physics},
title = {Massive scalar field evolution in de Sitter},
url = {http://dx.doi.org/10.1007/JHEP01(2017)133},
volume = {2017},
year = {2017}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The behaviour of a massive, non-interacting and non-minimally coupledquantised scalar field in an expanding de Sitter background is investigated bysolving the field evolution for an arbitrary initial state. In this approachthere is no need to choose a vacuum in order to provide a definition forparticle states. We conclude that the expanding de Sitter space is a stableequilibrium configuration under small perturbations of the initial conditions.Depending on the initial state, the energy density can approach its asymptoticvalue from above or below, the latter of which implies a violation of the weakenergy condition. The backreaction of the quantum corrections can thereforelead to a phase of super-acceleration also in the non-interacting massive case.
AU  - Markkanen,T
AU  - Rajantie,A
DO  - 10.1007/JHEP01(2017)133
PY  - 2017///
SN  - 1029-8479
TI  - Massive scalar field evolution in de Sitter
T2  - Journal of High Energy Physics
UR  - http://dx.doi.org/10.1007/JHEP01(2017)133
UR  - http://arxiv.org/abs/1607.00334v3
VL  - 2017
ER  -
Download

Note to staff:  Adding new publications to a research group

  1. Log in to Symplectic.
  2. Click on Menu > Create Links
  3. Choose what you want to create links between – in this case ‘Publications’ and ‘Organisational structures’.
  4. Choose the organisational structure (research group) into which you want to link the publications and check the box next to it.
  5. Now check the box of any publication you want to add to that group. You can use the filters to find what you want and select multiple publications if necessary. 
  6. Scroll to the bottom and click the blue ‘Create new link’ button to link them.
  7. The publications will be added to the group, and will be displayed on the group publications feed within 24 hours (it is not immediate).

Any problems, talk to Tim Evans or the Faculty Web Team.