1.9k citations · 16.3k across the 107 of their papers we have counts for
5 papers · 1 filter
Cosmological consequences of particle creation during inflation
David H. Lyth, David Roberts
Particle creation during inflation is considered. It could be important for species whose interaction is of gravitational strength or weaker. A complete but economical formalism is…
Models of inflation and the spectral index of the adiabatic density perturbation
David H. Lyth
If an adiabatic density perturbation is responsible for large scale structure and the cmb anisotropy, its spectral index will be measured in the forseeable future with an accur…
Normalization of modes in an open universe
Juan Garcia-Bellido, Andrew R Liddle, David H Lyth +1
We discuss the appropriate normalization of modes required to generate a homogeneous random field in an open Friedmann-Robertson-Walker universe. We consider scalar random fields a…
More varieties of hybrid inflation
David H. Lyth, Ewan D. Stewart
It is pointed out that hybrid inflation can be implemented with the inflaton field rolling away from the origin instead of towards it. This `inverted' hybrid inflation has a spectr…
What would we learn by detecting a gravitational wave signal in the cosmic microwave background anisotropy?
David H. Lyth
Inflation generates gravitational waves, which may be observable in the low multipoles of the cosmic microwave background (cmb) anisotropy but only if the inflaton field variation…