3.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.1k papers
- Observatoire de la Côte d’AzurFR595 papers
- Lagrange LaboratoryFR303 papers
- Laboratoire Jean-Alexandre DieudonnéFR217 papers
- Observatoire de ParisFR183 papers
- Université Paris DiderotFR149 papers
- National Institute for AstrophysicsIT147 papers
- Institut de Physique de NiceFR131 papers
- Sapienza University of RomeIT119 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR118 papers
- Université Pierre-et-Marie-CurieFR118 papers
- European Southern ObservatoryCL108 papers
19 papers · 1 filter
Bosons in optical lattices - from the Mott transition to the Tonks-Girardeau gas
S. Wessel, F. Alet, S. Trebst +3
We present results from quantum Monte Carlo simulations of trapped bosons in optical lattices, focusing on the crossover from a gas of softcore bosons to a Tonks-Girardeau gas in a…
Solitons in Trapped Bose-Einstein condensates in one-dimensional optical lattices
F. Hebert, G. G. Batrouni, R. T. Scalettar
We use Quantum Monte Carlo simulations to show the presence and study the properties of solitons in the one dimensional soft-core bosonic Hubbard model with near neighbor interacti…
Free monoid in monoidal abelian categories
Bruno Vallette
We give an explicit construction of the free monoid in monoidal abelian categories when the monoidal product does not necessarily preserve coproducts. We apply it to several new mo…
Polymer transport in random flow
A. Celani, S. Musacchio, D. Vincenzi
The dynamics of polymers in a random smooth flow is investigated in the framework of the Hookean dumbbell model. The analytical expression of the time-dependent probability density…
Shear effects on passive scalar spectra
A. Celani, M. Cencini, M. Vergassola +2
The effects of a large-scale shear on the energy spectrum of a passively advected scalar field are investigated. The shear is superimposed on a turbulent isotropic flow, yielding a…
Some analogs of Zariski's Theorem on nodal line arrangements
A. D. R. Choudary, A. Dimca, S. Papadima
For line arrangements in P^2 with nice combinatorics (in particular, for those which are nodal away the line at infinity), we prove that the combinatorics contains the same informa…
The Non--Ergodicity Threshold: Time Scale for Magnetic Reversal
G. L. Celardo, J. Barre, F. Borgonovi +1
We prove the existence of a non-ergodicity threshold for an anisotropic classical Heisenberg model with all-to-all couplings. Below the threshold, the energy surface is disconnecte…
Non-parametric Determination of Real-Time Lag Structure between Two Time Series: the "Optimal Thermal Causal Path" Method
D. Sornette, W. -X. Zhou
We introduce a novel non-parametric methodology to test for the dynamical time evolution of the lag-lead structure between two arbitrary time series. The method consists in constru…
Diffusion of a liquid nanoparticle on a disordered substrate
F. Celestini
We perform molecular dynamic simulations of liquid nanoparticles deposited on a disordered substrate. The motion of the nanoparticle is characterised by a 'stick and roll' diffusiv…
Metastable states in the planar 2d XY model and dissipation in superfluid flow
G. G. Batrouni
We use the Metropolis algorithm to study the stability of superfluid flow in a model system, namely the two-dimensional planar XY model. Flow properties are examined by studying th…
Stretching an adsorbed polymer globule
Franck Celestini, Thoma Frisch, Xabier Oyharcabal
Using molecular dynamic simulation, we study the stretching of an adsorbed homopolymer in a poor solvent with one end held at a distance from the substrate. We measure the ve…
Advanced VIRGO: detector optimization for gravitational waves by inspiralling binaries
Alessandro D. A. M. Spallicci, Sofiane Aoudia, Jose De Freitas Pacheco +2
For future configurations, we study the relation between the abatement of the noise sources and the Signal to Noise Ratio (SNR) for coalescing binaries. Our aim is not the proposit…
High performance guided-wave asynchronous heralded single photon source
Olivier Alibart, Daniel Barry Ostrowsky, Pascal Baldi +1
We report on a guided wave heralded photon source based on the creation of non-degenerate photon pairs by spontaneous parametric down conversion in a Periodically Poled Lithium Nio…
Homology of generalized partition posets
Bruno Vallette
We define a poset of partitions associated to an operad. We prove that the operad is Koszul if and only if the poset is Cohen-Macaulay. In one hand, this characterisation allows us…
Creep failures in heterogeneous materials
H. Nechad, A. Helmstetter, R. El Guerjouma +1
We present creep experiments on fiber composite materials with controlled heterogeneity. Recorded strain rates and acoustic emission rates exhibit a power law relaxation in the pri…
Andrade and Critical Time-to-Failure Laws in Fiber-Matrix Composites: Experiments and Model
H. Nechad, A. Helmstetter, R. El Guerjouma +1
We present creep experiments on fiber composite materials. Recorded strain rates and acoustic emission (AE) rates exhibit both a power law relaxation in the primary creep regime an…
Petite valeurs propres des fibrés principaux en tores
Pierre Jammes
Let M^n be a compact n-dimensional principal T^k-bundle. We consider collapsings of M on N=M/T^k such that the diameter and sectional curvature of M satisfy diam(M)<d and |K(M)|<a,…
Reply to Comment on "Roughness of Interfacial Crack Fronts: Stress-Weighted Percolation in the Damage Zone"
Jean Schmittbuhl, Alex Hansen, G. George Batrouni
This is the reply to a Comment by Alava and Zapperi (cond-mat/0401568) on Schmittbuhl, Hansen and Batrouni, PRL, 90, 045505 (2003).
Relative periodic orbits in point vortex systems
Frederic Laurent-Polz
We give a method to determine relative periodic orbits in point vortex systems: it consists mainly into perform a symplectic reduction on a fixed point submanifold in order to obta…