374 citations · 480 across the 15 of their papers we have counts for
6 papers · 1 filter
Electroweak symmetry breaking as a proximity effect
S. Khlebnikov
The proximity effect in condensed matter physics is a mechanism that naturally produces weak superconductivity. We argue that a braneworld can similarly produce a low-energy breaki…
Decoherence, instantons, and cosmological horizons
S. Khlebnikov
We consider the possibility that tunneling in a degenerate double-well potential in de Sitter spacetime leads to coherent oscillations of quantum probability to find the system in…
Metric perturbations at reheating: the use of spherical symmetry
F. Finelli, S. Khlebnikov
We consider decay of the inflaton with a quartic potential coupled to other fields, including gravity, but restricted to spherical symmetry. We describe analytically an early, quas…
Large metric perturbations from rescattering
F. Finelli, S. Khlebnikov
We study numerically evolution of metric perturbations during reheating in a model with two fields and a strong parametric resonance. Our calculation is fully nonlinear and include…
Relic gravitational waves produced after preheating
S. Yu. Khlebnikov, I. I. Tkachev
We show that gravitational radiation is produced quite efficiently in interactions of classical waves created by resonant decay of a coherently oscillating field. For simple models…
Strong-coupling expansions for chiral models of electroweak symmetry breaking
S. Yu. Khlebnikov, R. G. Schnathorst
We consider chiral models with fermions in the limit of infinitely large local bare Yukawa coupling. When the scalar field is subject to non-linear constraint, ph…