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- Centre National de la Recherche ScientifiqueFR288 papers
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63 papers · 1 filter
Dark Radiation and interacting scenarios
Roberta Diamanti, Elena Giusarma, Olga Mena +2
An extra dark radiation component can be present in the universe in the form of sterile neutrinos, axions or other very light degrees of freedom which may interact with the dark ma…
Mixing time of a kinetically constrained spin model on trees: power law scaling at criticality
Nicoletta Cancrini, Fabio Martinelli, Cyril Roberto +1
On the rooted -ary tree we consider a 0-1 kinetically constrained spin model in which the occupancy variable at each node is re-sampled with rate one from the Bernoulli(p) measu…
The effect of linear perturbations on the Yamabe problem
Pierpaolo Esposito, Angela Pistoia, Jérôme Vétois
In conformal geometry, the Compactness Conjecture asserts that the set of Yamabe metrics on a smooth, compact, aspherical Riemannian manifold (M,g) is compact. Established in the l…
Microwave properties of Nb/PdNi/Nb trilayers. Observation of flux flow in excess of Bardeen-Stephen theory
K. Torokhtii, N. Pompeo, C. Meneghini +5
We combine wideband (1-20 GHz) Corbino disk and dielectric resonator (8.2 GHz) techniques to study the microwave properties in Nb/PdNi/Nb trilayers, grown by UHV dc magnetron sputt…
Some remarks concerning symmetry-breaking for the Ginzburg-Landau equation
Pierpaolo Esposito
The correlation term, introduced in [13] to describe the interaction between very far apart vortices, governs symmetry-breaking for the Ginzburg-Landau equation in R^2 or bounded d…
Random quasi-phase-matched second-harmonic generation in periodically poled lithium tantalate
Salvatore Stivala, Alessandro C. Busacca, Alessia Pasquazi +3
We observe second harmonic generation via random quasi-phase-matching in a 2.0 μm periodically poled, 1-cm-long, z-cut lithium tantalate. Away from resonance, the harmonic output p…