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
95 papers · 1 filter
High-visibilty two-photon interference at a telecom wavelength using picosecond regime separated sources
P. Aboussouan, O. Alibart, D. B. Ostrowsky +2
We report on a two-photon interference experiment in a quantum relay configuration using two picosecond regime PPLN waveguide based sources emitting paired photons at 1550 nm. The…
Generation of polarization entangled photons using type-II doubly periodically poled lithium niobate waveguides
K. Thyagarajan, K. Sinha, J. Lugani +5
In this paper, we address the issue of the generation of non-degenerate cross-polarization-entangled photon pairs using type-II periodically poled lithium niobate. We show that, by…
ASTEP South: An Antarctic Search for Transiting ExoPlanets around the celestial South pole
Nicolas Crouzet, Tristan Guillot, Karim Agabi +19
ASTEP South is the first phase of the ASTEP project (Antarctic Search for Transiting ExoPlanets). The instrument is a fixed 10 cm refractor with a 4kx4k CCD camera in a thermalized…
Galilean Covariance versus Gauge Invariance
Germain Rousseaux
We demonstrate for the first time and unexpectedly that the Principle of Relativity dictates the choice of the "gauge conditions" in the canonical example of a Gauge Theory namely…
Strong near-infrared emission in the sub-AU disk of the Herbig Ae star HD163296: evidence for refractory dust?
M. Benisty, A. Natta, A. Isella +12
We present new long-baseline spectro-interferometric observations of the HerbigAe star HD163296 obtained in the H and K bands with the AMBER instrument at VLTI. The observations co…
Modification of radiation pressure due to cooperative scattering of light
Philippe Courteille, Simone Bux, Eleonora Lucioni +4
Cooperative spontaneous emission of a single photon from a cloud of N atoms modifies substantially the radiation pressure exerted by a far-detuned laser beam exciting the atoms. On…
An Iterative Method for Solving Non-Linear Hydromagnetic Equations
Cédric Boulbe, Tahar Zamène Boulmezaoud, T. Amari
We propose an iterative finite element method for solving non-linear hydromagnetic and steady Euler's equations. Some three-dimensional computational tests are given to confirm the…
Moments with Yakov Borisovich Zeldovich
Remo Ruffini
A recollection of special moments spent with Yakov Borisovich Zeldovich and with the scientists of Soviet Union and abroad.
Electron-positron pairs in physics and astrophysics: from heavy nuclei to black holes
Remo Ruffini, Gregory Vereshchagin, She-Sheng Xue
From the interaction of physics and astrophysics we are witnessing in these years a splendid synthesis of theoretical, experimental and observational results originating from three…
Design and fabrication of an intrinsically gain flattened Erbium doped fiber amplifier
B. Nagaraju, M. C. Paul, M. Pal +6
We report design and subsequent fabrication of an intrinsically gain flattened Erbium doped fiber amplifier (EDFA) based on a highly asymmetrical and concentric dual-core fiber, in…
Long-period fiber grating as wavelength selective element in double-clad Yb-doped fiber-ring lasers
P. Peterka, Jerome Maria, Bernard Dussardier +3
Selection of operating wavelength of the Yb-doped fiber-ring lasers using longperiod fiber gratings (LPFGs) is suggested. In the proposed method, customized LPFG that sustains high…
Fragment properties at the catastrophic disruption threshold: The effect of the parent body's internal structure
Martin Jutzi, Patrick Michel, Willy Benz +1
Numerical simulations of asteroid break-ups, including both the fragmentation of the parent body and the gravitational interactions between the fragments, have allowed us to reprod…
Revealing the sub-AU asymmetries of the inner dust rim in the disk around the Herbig Ae star R CrA
S. Kraus, K. -H. Hofmann, F. Malbet +5
Models predict that in the innermost AU of the disk around Herbig Ae/Be star, the dust disk forms a "puffed-up" inner rim, which should result in a strongly asymmetric brightness d…
The galactic unclassified B[e] star HD 50138. I. A possible new shell phase
Marcelo Borges Fernandes, Michaela Kraus, Olivier Chesneau +4
The observed spectral variation of HD 50138 has led different authors to classify it in a very wide range of spectral types and luminosity classes (from B5 to A0 and III to Ia) and…
Confusion background from compact binaries
T. Regimbau, Scott A. Hughes
Double neutron stars are one of the most promizing sources for terrestrial gravitational wave interferometers. For actual interferometers and their planned upgrades, the probabilit…
Dispersion and collapse in stochastic velocity fields on a cylinder
Antonio Celani, Sylvain Rubenthaler, Dario Vincenzi
The dynamics of fluid particles on cylindrical manifolds is investigated. The velocity field is obtained by generalizing the isotropic Kraichnan ensemble, and is therefore Gaussian…
On the relativistic Thomas-Fermi treatment of compressed atoms and compressed nuclear matter cores of stellar dimensions
M. Rotondo, Jorge A. Rueda, R. Ruffini +1
The Feynman, Metropolis and Teller treatment of compressed atoms is extended to the relativistic regimes. Each atomic configuration is confined by a Wigner-Seitz cell and is charac…
A coherent optical link through the turbulent atmosphere
Khelifa Djerroud, Ouali Acef, Andre Clairon +4
We describe the realization of a 5 km free space coherent optical link through the turbulent atmosphere between a telescope and a ground target. We present the phase noise of the l…
Halpha spectropolarimetry of the B[e] supergiant GG Carinae
A. Pereyra, F. X. de Araujo, A. M. Magalhaes +2
Aims. We study the geometry of the circumstellar environment of the B[e] supergiant star GG Car. Methods. We present observations acquired using the IAGPOL imaging polarimeter in c…
Effects of Spatially Nonuniform Gain on Lasing Modes in Weakly Scattering Random Systems
Jonathan Andreasen, Christian Vanneste, Li Ge +1
A study on the effects of optical gain nonuniformly distributed in one-dimensional random systems is presented. It is demonstrated numerically that even without gain saturation and…
Non-modal approach to linear theory: marginal stability and the dissipation of turbulent fluctuations
Enrico Camporeale, Thierry Passot, David Burgess
The non-modal approach for a linearized system differs from a normal mode analysis by following the temporal evolution of some perturbed equilibria, and therefore includes transien…
Finite Elements for a Beam System With Nonlinear Contact Under Periodic Excitation
Hamad Hazim, B. Rousselet
Solar arrays are structures which are connected to satellites; during launch, they are in a folded position and submitted to high vibrations. In order to save mass, the flexibility…
Arrest of Langmuir wave collapse by quantum effects
Gideon Simpson, Catherine Sulem, Pierre-Louis Sulem
The arrest of Langmuir-wave collapse by quantum effects, first addressed by Haas and Shukla [Phys. Rev. E 79, 066402 (2009)] using a Rayleigh-Ritz trial-function method is revisite…
On `maximal' poles of zeta functions, roots of b-functions and monodromy Jordan blocks
A. Melle-Hernández, T. Torrelli, Willem Veys
The main objects of study in this paper are the poles of several local zeta functions: the Igusa, topological and motivic zeta function associated to a polynomial or (germ of) holo…