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75 papers · 1 filter
The Authorization Policy Existence Problem
Pierre Bergé, Jason Crampton, Gregory Gutin +1
Constraints such as separation-of-duty are widely used to specify requirements that supplement basic authorization policies. However, the existence of constraints (and authorizatio…
Semi-classical analysis of black holes in Loop Quantum Gravity: Modelling Hawking radiation with volume fluctuations
Pierre Heidmann, Hongguang Liu, Karim Noui
We introduce the notion of fluid approximation of a quantum spherical black hole in the context of Loop Quantum Gravity. In this limit, the microstates of the black hole are intert…
Socioeconomic correlations and stratification in social-communication networks
Yannick Leo, Eric Fleury, J. Ignacio Alvarez-Hamelin +2
The uneven distribution of wealth and individual economic capacities are among the main forces which shape modern societies and arguably bias the emerging social structures. Howeve…
Predicting and assessing rupture in protein gels under oscillatory shear
Brice Saint-Michel, Thomas Gibaud, Sebastien Manneville
Soft materials may break irreversibly upon applying sufficiently large shear oscillations, a process which physical mechanism remains largely elusive. In this work, the rupture of…
Theoretical description of effective heat transfer between two viscously coupled beads
Antoine Bérut, Alberto Imparato, Artyom Petrosyan +1
We analytically study the role of nonconservative forces, namely viscous couplings, on the statistical properties of the energy flux between two Brownian particles kept at differen…
Different growth rates for spin and superfluid order in a quenched spinor condensate
Andréane Bourges, P. B. Blakie
In this paper we study the coarsening dynamics of a spinor condensate quenched into an easy-axis ferromagnetic phase by a sudden change in the quadratic Zeeman energy. We show that…