Novel quantum initial conditions for inflation
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Handley, WJ
Lasenby, AN
Hobson, MP
Abstract
We present a novel approach for setting initial conditions on the mode functions of the Mukhanov Sazaki equation. These conditions are motivated by minimisation of the renormalised stress-energy tensor, and are valid for setting a vacuum state even in a context where the spacetime is changing rapidly. Moreover, these alternative conditions are potentially observationally distinguishable. We apply this to the kinetically dominated universe, and compare with the more traditional approach.
Description
Keywords
gr-qc, gr-qc, astro-ph.CO
Journal Title
Physical Review D
Conference Name
Journal ISSN
2470-0010
2470-0029
2470-0029
Volume Title
94
Publisher
American Physical Society (APS)
Publisher DOI
Sponsorship
STFC (1208121)
Science and Technology Facilities Council