8 citations · 18 across the 12 of their papers we have counts for
12 papers
Zero Point Density Fluctuations and Electron Brownian Motion
L. H. Ford, G. O. Heymans, N. F. Svaiter
The fluctuations in the phonon vacuum state can lead to zero point density fluctuations in a material, which in turn lead to local zero point fluctuations of the dielectric propert…
Weak- and strong-disorder effects in the continuous random-field Ising model
G. O. Heymans, N. F. Svaiter, B. F. Svaiter +1
We discuss the weak- and strong-disorder effects in the continuous random-field Ising model using the distributional zeta-function method. In the weak-disorder regime, the vacuum i…
Analog model for Euclidean wormholes: Bose-Einstein condensate with dirty surfaces
Isaque P. de Freitas, Nami F. Svaiter, Gustavo O. Heymans
We study a Bose-Einstein condensate under the effects of the non-condensate atomic cloud. We model the resulting linear interaction of the condensate with the atomic gas as a quenc…
Bounds in partition functions of the continuous random field Ising model
G. O. Heymans, N. F. Svaiter, B. F. Svaiter +1
We investigate the critical properties of continuous random field Ising model (RFIM). Using the distributional zeta-function method, we obtain a series representation for the quenc…
The Casimir-Lifshitz formula for rectangular dielectric waveguide
E. Arias, G. O. Heymans, N. F. Svaiter
We analyze the Casimir-Lifshitz effect associated with the electromagnetic field in the presence of a rectangular waveguide consisting of two distinct dielectric materials in a $(3…
The generalized second law in Euclidean Schwarzschild black hole
G. O. Heymans, G. Scorza, N. F. Svaiter +1
We discuss the Bekenstein generalized entropy of a Schwarzschild black hole, with the contribution of an external matter field affected by degrees of freedom near the event horizon…
Critical Casimir effect in a disordered -symmetric model
G. O. Heymans, N. F. Svaiter, B. F. Svaiter +1
Critical Casimir effect appears when critical fluctuations of an order parameter interact with classical boundaries. We investigate this effect in the setting of a Landau-Ginzburg…
The vacuum energy with non-ideal boundary conditions via an approximate functional equation
E. Arias, G. O. Heymans, H. T. Lopes +1
We discuss the vacuum energy of a quantized scalar field in the presence of classical surfaces, defining bounded domains , where the field satisfies idea…
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…
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…
Quantum phase transitions in a bidimensional scalar field model
Gustavo O. Heymans, Marcus Benghi Pinto, Rudnei O. Ramos
We analyze the possible quantum phase transition patterns occurring within the scalar multi-field model at vanishing temperatures in -dimensions…
Critical behavior of the 2d scalar theory: resumming the perturbative mass gap
Gustavo O. Heymans, Marcus Benghi Pinto
We apply the optimized perturbation theory (OPT) to resum the perturbative series describing the mass gap of the bidimensional theory in the symmetric phase. A…