183 citations · 2.1k across the 86 of their papers we have counts for
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Analog Model for Euclidean Wormholes Effects
G. O. Heymans, N. F. Svaiter, G. Krein
Using results of statistical field theory for systems with an anisotropic disorder, we present an analog model for Euclidean wormholes and topological fluctuation effects in a Riem…
Wilsonian Renormalization as a Quantum Channel and the Separability of Fixed Points
Matheus H. Martins Costa, Jeroen van den Brink, Flavio S. Nogueira +1
We show that the Wilsonian formulation of the renormalization group (RG) defines a quantum channel acting on the momentum-space density matrices of a quantum field theory. This inf…
Momentum Space Entanglement from the Wilsonian Effective Action
Matheus H. Martins Costa, Jeroen van den Brink, Flavio S. Nogueira +1
The entanglement between momentum modes of a quantum field theory at different scales is not as well studied as its counterpart in real space, despite the natural connection with t…
Restoration of a Spontaneously Broken Symmetry in an Euclidean Quantum model with Quenched Disorder
G. O. Heymans, N. F. Svaiter, G. Krein
We investigate the low temperature behavior of a system in a spontaneously broken symmetry phase described by an Euclidean quantum model with quenched disorder. Usin…
Stochastic quantization of a self-interacting nonminimal scalar field in semiclassical gravity
Eduardo Antonio dos Reis, Gastão Krein, Tibério de Paula Netto +1
We employ stochastic quantization for a self-interacting nonminimal massive scalar field in curved spacetime. The covariant background field method and local momentum space represe…
Regular and chaotic interactions of two BPS dyons at low energy
Ricardo Fariello, Hilmar Forkel, Gastao Krein
We identify and analyze quasiperiodic and chaotic motion patterns in the time evolution of a classical, non-Abelian Bogomol'nyi-Prasad-Sommerfield (BPS) dyon pair at low energies.…