10.6k 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 ScientifiqueFR1.4k papers
- Sorbonne UniversitéFR399 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR285 papers
- Université Paris CitéFR244 papers
- Université Paris-SaclayFR238 papers
- Université Paris-SudFR217 papers
- Aix-Marseille UniversitéFR214 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR213 papers
- CEA Paris-SaclayFR186 papers
- Université Grenoble AlpesFR186 papers
- Sapienza University of RomeIT162 papers
- Lyon 1 UniversitéFR161 papers
25 papers · 1 filter
Upper and lower critical fields in NdFeAs(O,F) single crystals : a study by Hall probe magnetization and specific heat
Z. Pribulova, T. Klein, J. Kacmarcik +5
The upper and lower critical fields have been deduced from specific heat and Hall probe magnetization measurements in non-optimally doped NdFeAs(O,F) single crystals ($T_c \sim 32-…
Prompt high-energy emission from gamma-ray bursts in the internal shock model
Z. Bosnjak, F. Daigne, G. Dubus
The prompt GRB emission is thought to arise from electrons accelerated in internal shocks propagating within a highly relativistic outflow. The launch of Fermi offers the prospect…
The Monitor project: Rotation periods of low-mass stars in M50
Jonathan Irwin, Suzanne Aigrain, Jerome Bouvier +4
We report on the results of a time-series photometric survey of M50 (NGC 2323), a ~130 Myr open cluster, carried out using the CTIO 4m Blanco telescope and Mosaic-II detector as pa…
Large-Time Behavior of Periodic Entropy Solutions to Anisotropic Degenerate Parabolic-Hyperbolic Equations
Gui-Qiang Chen, Benoit Perthame
We are interested in the large-time behavior of periodic entropy solutions in to anisotropic degenerate parabolic-hyperbolic equations of second-order. Unlike the pure h…
Numerical Solution of an Inverse Problem in Size-Structured Population Dynamics
Marie Doumic Jauffret, Benoît Perthame, Jorge P. Zubelli
We consider a size-structured model for cell division and address the question of determining the division (birth) rate from the measured stable size distribution of the population…
Magnetic moment manipulation by a Josephson current
François Konschelle, Alexandre Buzdin
We consider a Josephson junction where the weak-link is formed by a non-centrosymmetric ferromagnet. In such a junction, the superconducting current acts as a direct driving force…
Kondo decoherence: finding the right spin model for iron impurities in gold and silver
T. A. Costi, L. Bergqvist, A. Weichselbaum +8
We exploit the decoherence of electrons due to magnetic impurities, studied via weak localization, to resolve a longstanding question concerning the classic Kondo systems of Fe imp…
Localization on quantum graphs with random edge lengths
Frédéric Klopp, Konstantin Pankrashkin
The spectral properties of the Laplacian on a class of quantum graphs with random metric structure are studied. Namely, we consider quantum graphs spanned by the simple $\ZZ^d$-lat…
Interference oscillations of microwave photoresistance in double quantum wells
S. Wiedmann, G. M. Gusev, O. E. Raichev +3
We observe oscillatory magnetoresistance in double quantum wells under microwave irradiation. The results are explained in terms of the influence of subband coupling on the frequen…
Effect of Disorder on the Quantum Coherence in Mesoscopic Wires
Y. Niimi, Y. Baines, T. Capron +6
We present phase coherence time measurements in quasi-one-dimensional mesoscopic wires made from high mobility two-dimensional electron gas. By implanting gallium ions into a GaAs/…
What do stars tell us about planets? Asteroseismology of exoplanet-host stars
Sylvie Vauclair
Studying the internal structure of exoplanet-host stars compared to that of similar stars without detected planets is particularly important for the understanding of planetary form…
New composite models of partially ionized protoplanetary disks
Caroline E. J. M. L. J. Terquem
We study an accretion disk in which three different regions may coexist: MHD turbulent regions, dead zones and gravitationally unstable regions. Although the dead zones are stable,…
Development of Anisotropy in Incompressible Magnetohydrodynamic Turbulence
Barbara Bigot, Sebastien Galtier, Helene Politano
We present a set of three-dimensional (3D) direct numerical simulations of incompressible decaying magnetohydrodynamic turbulence in which we investigate the influence of an extern…
Direct coupling between magnetism and superconducting current in Josephson Phi junction
A. Buzdin
We study the proximity effect between conventional superconductor and magnetic normal metal with a spin-orbit interaction of the Rashba type. Using the phenomenological Ginzburg-La…
Nonsinusoidal current-phase relation in strongly ferromagnetic and moderately disordered SFS junctions
F. Konschelle, J. Cayssol, A. Buzdin
We study the Josephson current in a junction comprising two superconductors linked by a strong ferromagnet in presence of impurities. We focus on a regime where the electron (and h…
Superfluid equation of state of cold fermionic gases in the Bose-Einstein regime
R. Combescot, X. Leyronas
We present an exact many-body theory of ultracold fermionic gases for the Bose-Einstein condensation (BEC) regime of the BEC-BCS crossover. This is a purely fermionic approach whic…
From Black-Scholes and Dupire formulae to last passage times of local martingales. Part B : The finite time horizon
Amel Bentata, Marc Yor
These notes are the second half of the contents of the course given by the second author at the Bachelier Seminar (8-15-22 February 2008) at IHP. They also correspond to topics stu…
From Black-Scholes and Dupire formulae to last passage times of local martingales. Part A : The infinite time horizon
Amel Bentata, Marc Yor
These notes are the first half of the contents of the course given by the second author at the Bachelier Seminar (February 8-15-22 2008) at IHP. They also correspond to topics stud…
On the number of components of a complete intersection of real quadrics
Alex Degtyarev, Ilia Itenberg, Viatcheslav Kharlamov
Our main results concern complete intersections of three real quadrics. We prove that the maximal number of connected components that a regular complete intersection of…
Boundary-mediated electron-electron interactions in quantum point contacts
Vincent Thomas Francois Renard, O. A. Tkachenko, V. A. Tkachenko +4
An unusual increase of the conductance with temperature is observed in clean quantum point contacts for conductances larger than 2e^2/h. At the same time a positive magnetoresistan…
Spectral extrema and Lifshitz tails for non monotonous alloy type models
Frédéric Klopp, Shu Nakamura
In the present note, we determine the ground state energy and study the existence of Lifshitz tails near this energy for some non monotonous alloy type models. Here, non monotonous…
Experimental investigation of the ratchet effect in a two-dimensional electron system with broken spatial inversion symmetry
S. Sassine, Yu. Krupko, J. -C. Portal +5
We report on experimental evidence of directed electron transport, induced by external linear-polarized microwave irradiation, in a two-dimensional spatially-periodic asymmetrical…
Andreev Current-Induced Dissipation in a Hybrid Superconducting Tunnel Junction
Sukumar Rajauria, Philippe Gandit, Thierry Fournier +3
We have studied hybrid superconducting micro-coolers made of a double Superconductor-Insulator-Normal metal tunnel junction. Under subgap conditions, the Andreev current is found t…
On the singularity of random matrices with independent entries
Laurent Bruneau, Francois Germinet
We consider n by n real matrices whose entries are non-degenerate random variables that are independent but non necessarily identically distributed, and show that the probability t…