52 citations · 52 across the 1 of their papers we have counts for
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Cosmological Perturbation Theory in Slow-Roll Spacetimes
B. Losic, W. G. Unruh
We present a gauge invariant argument that a nonlocal measure of second-order metric and matter perturbations dominate that of linear fluctuations in its effect on the gravitationa…
On leading order gravitational backreactions in de Sitter spacetime
B. Losic, W. G. Unruh
Backreactions are considered in a de Sitter spacetime whose cosmological constant is generated by the potential of scalar field. The leading order gravitational effect of nonlinear…
Long-wavelength metric backreactions in slow-roll inflation
B. Losic, W. G. Unruh
We examine the importance of second order corrections to linearized cosmological perturbation theory in an inflationary background, taken to be a spatially flat FRW spacetime. The…
On the initial value problem for second order scalar fluctuations in Einstein static
B. Losic, W. G. Unruh
We consider fluctuations in a perfect irrotational fluid coupled to gravity in an Einstein static universe background. We show that the homogeneous linear perturbations of the scal…