116 citations · 209 across the 12 of their papers we have counts for
12 papers
Significance of a one-degree Celsius increase in global temperature
Jean-Sebastien Gagnon
The Intergovernmental Panel on Climate Change reports indicate that the global mean temperature is about one-degree Celsius higher than pre-industrial levels, that this increase is…
Renormalization of stochastic differential equations with multiplicative noise using effective potential methods
Jean-Sebastien Gagnon, David Hochberg, Juan Perez-Mercader
We present a new method to renormalize stochastic differential equations subjected to multiplicative noise. The method is based on the widely used concept of effective potential in…
From chemical soup to computing circuit: Transforming a contiguous chemical medium into a logic gate network by modulating its external conditions
Matthew Egbert, Jean-Sebastien Gagnon, Juan Perez-Mercader
It has been shown that it is possible to transform a well-stirred chemical medium into a logic-gate simply by varying the chemistry's external conditions (feed rates, lighting cond…
On the physical (im)possibility of lightsabers
Francois Fillion-Gourdeau, Jean-Sebastien Gagnon
In this paper, we use a science fiction theme (i.e. the iconic lightsaber from the Star Wars universe) as a pedagogical tool to introduce aspects of nonlinear electrodynamics due t…
Selection and control of pathways by using externally adjustable noise on a stochastic cubic autocatalytic chemical system
Jean-Sebastien Gagnon, David Hochberg, Juan Perez-Mercader
We investigate the effect of noisy feed rates on the behavior of a cubic autocatalytic chemical reaction model. By combining the renormalization group and stoichiometric network an…
Dynamic modulation of external conditions can transform chemistry into logic gates
Matthew Egbert, Jean-Sebastien Gagnon, Juan Perez-Mercader
We introduce a new method for transforming chemical systems into desired logical operators (e.g. NAND-gates) or similar signal-manipulation components. The method is based upon ope…
Effects of spatial and temporal noise on a cubic-autocatalytic reaction-diffusion model
Jean-Sebastien Gagnon, David Hochberg, Juan Perez-Mercader
We characterize the influence that external noise, with both spatial and temporal correlations, has on the scale dependence of the reaction parameters of a cubic autocatalytic reac…
Small-scale properties of a stochastic cubic-autocatalytic reaction-diffusion model
Jean-Sebastien Gagnon, David Hochberg, Juan Perez-Mercader
We investigate the small-scale properties of a stochastic cubic-autocatalytic reaction-diffusion (CARD) model using renormalization techniques. We renormalize noise-induced ultravi…
Clues on chemical mechanisms from renormalizability: The example of a noisy cubic autocatalytic model
Jean-Sebastien Gagnon, Juan Perez-Mercader
We study the effect of noise on the renormalizability of a specific reaction-diffusion system of equations describing a cubic autocatalytic chemical reaction. The noise we are usin…
Dark goo: Bulk viscosity as an alternative to dark energy
Jean-Sebastien Gagnon, Julien Lesgourgues
We present a simple (microscopic) model in which bulk viscosity plays a role in explaining the present acceleration of the universe. The effect of bulk viscosity on the Friedmann e…
Baryon Asymmetry of the Universe without Boltzmann or Kadanoff-Baym
J. -S. Gagnon, M. Shaposhnikov
We present a formalism that allows the computation of the baryon asymmetry of the universe from first principles of statistical physics and quantum field theory that is applicable…
All orders Boltzmann collision term from the multiple scattering expansion of the self-energy
F. Fillion-Gourdeau, J. -S. Gagnon, S. Jeon
Starting from the Kadanoff-Baym relativistic transport equation and the multiple scattering expansion of the self-energy, we obtain the Boltzmann collision terms for any number of…