3.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of OsloNO153 papers
- Centre National de la Recherche ScientifiqueFR139 papers
- KTH Royal Institute of TechnologySE92 papers
- SINTEFNO92 papers
- Johannes Gutenberg University MainzDE57 papers
- Delft University of TechnologyNL56 papers
- University of CopenhagenDK55 papers
- ETH ZurichCH46 papers
- Tomsk State Pedagogical UniversityRU44 papers
- University of CambridgeGB41 papers
- Stockholm UniversitySE40 papers
- Eindhoven University of TechnologyNL38 papers
68 papers · 1 filter
A comparative study of two phenomenological models of dephasing in series and parallel resistors
Swarnali Bandopadhyay, Debasish Chaudhuri, Arun M. Jayannavar
We compare two phenomenological models of dephasing that are in use recently. We show that the stochastic absorption model leads to reasonable dephasing in series (double barrier)…
A study of localisation in dual-phase high-strength steels under dynamic loading using digital image correlation and FE analysis
V. Tarigopula, O. S. Hopperstad, M. Langseth +2
Tensile tests were conducted on dual-phase high-strength steel in a Split-Hopkinson Tension Bar at a strain-rate in the range of 150-600/s and in a servo-hydraulic testing machine…
Proximity effect-assisted absorption of spin currents in superconductors
Jan Petter Morten, Arne Brataas, Gerrit E. W. Bauer +2
The injection of pure spin current into superconductors by the dynamics of a ferromagnetic contact is studied theoretically. Taking into account suppression of the order parameter…
Correlations between political party size and voter memory: A statistical analysis of opinion polls
Christian A. Andresen, Henning F. Hansen, Alex Hansen +2
This paper describes the application of statistical methods to political polling data in order to look for correlations and memory effects. We propose measures for quantifying the…
Integral means and boundary limits of Dirichlet series
Eero Saksman, Kristian Seip
We study the boundary behavior of functions in the Hardy spaces HD^p for ordinary Dirichlet series. Our main result, answering a question of H. Hedenmalm, shows that the classical…
Self-Consistent Ornstein-Zernike approximation for the Yukawa fluid with improved direct correlation function
Albert Reiner, Johan S. Hoye
Thermodynamic consistency of the Mean Spherical Approximation as well as the Self-Consistent Ornstein-Zernike Approximation (SCOZA) with the virial route to thermodynamics is analy…
On the electromagnetic properties of active media
Bertil Nistad, Johannes Skaar
Several results concerning active media or metamaterials are proved and discussed. In particular, we consider the permittivity, permeability, wave vector, and refractive index, and…
Dimensions, Maximal Growth Sites and Optimization in the Dielectric Breakdown Model
Joachim Mathiesen, Mogens H. Jensen, Jan Oystein Haavig Bakke
We study the growth of fractal clusters in the Dielectric Breakdown Model (DBM) by means of iterated conformal mappings. In particular we investigate the fractal dimension and the…
Tunneling conductance in - and d-wave superconductor-graphene junctions: Extended Blonder-Tinkham-Klapwijk formalism
Jacob Linder, Asle Sudbø
We investigate the conductance spectra of a normal/superconductor graphene junction using the extended Blonder-Tinkham-Klapwijk formalism, considering pairing potentials that are b…
Quantum transport in a normal metal/odd-frequency superconductor junction
Jacob Linder, Takehito Yokoyama, Yukio Tanaka +2
Recent experimental results indicate the possible realization of a bulk odd-frequency superconducting state in the compounds CeCuSi, and CeRhIn. Motivated by this, we p…
Identifying the odd-frequency superconducting state by a field-induced Josephson effect
Jacob Linder, Takehito Yokoyama, Asle Sudbø
Superconducting order parameters that are odd under exchange of time-coordinates of the electrons constituting a Cooper-pair, are potentially of great importance both conceptually…
Supercontinua for high resolution absorption multiplex infrared spectroscopy
Julien Mandon, Evgeni Sorokin, Irina T. Sorokina +2
Supercontinua generated in highly non-linear fibers by ultrashort-pulse lasers can be used for high resolution Fourier transform absorption spectroscopy. The practical advantages o…
Local Conservation Laws and the Hamiltonian Formalism for the Ablowitz-Ladik Hierarchy
Fritz Gesztesy, Helge Holden, Johanna Michor +1
We derive a systematic and recursive approach to local conservation laws and the Hamiltonian formalism for the Ablowitz-Ladik (AL) hierarchy. Our methods rely on a recursive approa…
Spin-flip scattering and non-ideal interfaces in dirty ferromagnet/superconductor junctions
Jacob Linder, Asle Sudbø
We study the proximity-induced superconducting correlations as well as the local density of states of a ferromagnet, in a ferromagnet/s-wave superconductor heterostructure. We incl…
Wall rational functions and Khrushchev's formula for orthogonal rational functions
Olav Njastad, Luis Velazquez
We prove that the Nevalinna-Pick algorithm provides different homeomorphisms between certain topological spaces of measures, analytic functions and sequences of complex numbers. Th…
Denominators of cluster variables
Aslak Bakke Buan, Bethany Marsh, Idun Reiten
Associated to any acyclic cluster algebra is a corresponding triangulated category known as the cluster category. It is known that there is a one-to-one correspondence between clus…
Sensitive multiplex spectroscopy in the molecular fingerprint 2.4 m region with a Cr^{2+}:ZnSe femtosecond laser
Evgeni Sorokin, Irina T. Sorokina, Julien Mandon +2
An ultrashort-pulse Cr^{2+}:ZnSe laser is a novel broadband source for sensitive high resolution molecular spectroscopy. A 130-fs pulse allows covering of up to 380 cm^-1 spectral…
Analytical and Numerical Demonstration of How the Drude Dispersive Model Satisfies Nernst's Theorem for the Casimir Entropy
Iver Brevik, Simen A. Ellingsen, Johan S. Høye +1
In view of the current discussion on the subject, an effort is made to show very accurately both analytically and numerically how the Drude dispersive model, assuming the relaxatio…
Concerning verification of the Nernst theorem for Casimir-Lifshitz free energy
Simen A. Ellingsen
By regarding the Lifshitz expression for the Casimir free energy on the real frequency axis rather than the imaginary Matsubara frequencies as is customary, new light is shed on th…
Circuit theory for crossed Andreev reflection and nonlocal conductance
Jan Petter Morten, Arne Brataas, Wolfgang Belzig
Nonlocal currents, in devices where two normal metal terminals are contacted to a superconductor, are determined using the circuit theory of mesoscopic superconductivity. We calcul…
Unifying thermodynamic and kinetic descriptions of single-molecule processes: RNA unfolding under tension
J. M. Rubi, D. Bedeaux, S. Kjelstrup
We use mesoscopic non-equilibrium thermodynamics theory to describe RNA unfolding under tension. The theory introduces reaction coordinates, characterizing a continuum of states fo…
External Control of a Metal-Insulator Transition in GaMnAs Wires
Anh Kiet Nguyen, Arne Brataas
Quantum transport in disordered ferromagnetic (III,Mn)V semiconductors is studied theoretically. Mesoscopic wires exhibit an Anderson disorder-induced metal-insulator transition th…
Capillary-Driven Instability of Immiscible Fluid Interfaces Flowing in Parallel in Porous Media
Thomas Ramstad, Alex Hansen
When immiscible wetting and non-wetting fluids move in parallel in a porous medium, an instability may occur at sufficiently high capillary numbers so that interfaces between the f…
Theory of current-driven magnetization dynamics in inhomogeneous ferromagnets
Yaroslav Tserkovnyak, Arne Brataas, Gerrit E. W. Bauer
We give a brief account of recent developments in the theoretical understanding of the interaction between electric currents and inhomogeneous ferromagnetic order parameters. We st…