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
Spin-Orbit-Mediated Spin Relaxation in Graphene
D. Huertas-Hernando, F. Guinea, A. Brataas
We investigate how spins relax in intrinsic graphene. The spin-orbit coupling arises from the band structure and is enhanced by ripples. The orbital motion is influenced by scatter…
Dynamics of thermal Casimir-Polder forces on polar molecules
S. A. Ellingsen, S. Y. Buhmann, S. Scheel
We study the influence of thermal Casimir-Polder forces on the near-surface trapping of cold polar molecules, with emphasis on LiH and YbF near an Au surface at room temperature. W…
Performance Modeling and Evaluation for Information-Driven Networks
Kui Wu, Yuming Jiang, Guoqiang Hu
Information-driven networks include a large category of networking systems, where network nodes are aware of information delivered and thus can not only forward data packets but ma…
Unusual states of vortex matter in mixtures of Bose--Einstein Condensates on rotating optical lattices
E. K. Dahl, E. Babaev, A. Sudbo
A striking property of a single-component superfluid under rotation, is that a broken symmetry in the order parameter results in a broken translational symmetry, a vortex lattice.…
Theory of Andreev reflection in junctions with iron-based High- superconductors
Jacob Linder, Asle Sudbø
We construct a theory for low-energy quantum transport in normalsuperconductor junctions involving the recently discovered iron-based high- superconductors. We properly…
Casimir Lifshitz pressure and free energy: exploring a simple model
Simen Å. Ellingsen
The Casimir effect, the dispersion force attracting neutral objects to each other, may be understood in terms of multiple scattering of light between the interacting bodies. We exp…
Intrinsic Coupling between Current and Domain Wall Motion in (Ga,Mn)As
Kjetil M. D Hals, Anh Kiet Nguyen, Arne Brataas
We consider current-induced domain wall motion and, the reciprocal process, moving domain wall-induced current. The associated Onsager coefficients are expressed in terms of scatte…
Kaon condensation in the color-flavor-locked phase of quark matter, the Goldstone theorem, and the 2PI Hartree approximation
Jens O. Andersen, Lars E. Leganger
At very high densities, QCD is in the color-flavor locked phase, which is a color-superconducting phase. The diquark condensates break chiral symmetry in the same way as it is brok…
Bose-Einstein condensation in dense quark matter
Jens O. Andersen
We consider the problem of Bose condensation of charged pions in QCD at finite isospin chemical potential using the O(4)-symmetric linear sigma model as an effective field th…
Screened perturbation theory at four loops
Lars Kyllingstad
We study the thermodynamics of massless phi-fourth theory using screened perturbation theory, which is a way to systematically reorganise the perturbative series. The free energy a…
Nontrivial interplay between superconductivity and spin-orbit coupling in non-centrosymmetric ferromagnets
Jacob Linder, Andriy H. Nevidomskyy, Asle Sudbø
Motivated by the recent discoveries of ferromagnetic and non-centrosymmetric superconductors, we present a mean-field theory for a superconductor that \textit{both} lacks inversion…
Channel and Multiuser Diversities in Wireless Systems: Delay-Energy Tradeoff
Prasanna Chaporkar, Kimmo Kansanen, Ralf R. Müller
We consider a communication system with multi-access fading channel. Each user in the system requires certain rate guarantee. Our main contribution is to devise a scheduling scheme…
Pointwise estimates for the Bergman kernel of the weighted Fock space
Jordi Marzo, Joaquim Ortega-Cerdá
We prove upper pointwise estimates for the Bergman kernel of the weighted Fock space of entire functions in where is a subharmonic function with a doubling…
Orbit equivalence for Cantor minimal Z^d-systems
Thierry Giordano, Hiroki Matui, Ian F. Putnam +1
We show that every minimal action of any finitely generated abelian group on the Cantor set is (topologically) orbit equivalent to an AF relation. As a consequence, this extends th…
Algebraic Cuntz-Pimsner rings
Toke Meier Carlsen, Eduard Ortega
From a system consisting of a right non-degenerate ring , a pair of -bimodules and and an -bimodule homomorphism we construct a $\Z…
Supersymmetric superheavy dark matter
V. Berezinsky, M. Kachelriess, M. Aa. Solberg
We propose the lightest supersymmetric particle (LSP) as a well-suited candidate for superheavy dark matter (SHDM). Various production mechanisms at the end of inflation can produc…
Superconducting/ferromagnetic diffusive bilayer with a spin-active interface: a numerical study
Audrey Cottet, Jacob Linder
We calculate the density of states (DOS) in a diffusive superconducting/ferromagnetic bilayer with a spin-active interface. We use a self-consistent numerical treatment to make a s…
Coloured quiver mutation for higher cluster categories
Aslak Bakke Buan, Hugh Thomas
We define mutation on coloured quivers associated to tilting objects in higher cluster categories. We show that this operation is compatible with the mutation operation on the tilt…
Global Well-posedness of the 1D Dirac-Klein-Gordon system in Sobolev spaces of negative index
Achenef Tesfahun
We prove that the Cauchy problem for the Dirac-Klein-Gordon system of equations in 1D is globally well-posed in a range of Sobolev spaces of negative index for the Dirac spinor and…
Low temperature Casimir-Lifshitz free energy and entropy: the case of poor conductors
Simen A. Ådnøy Ellingsen, Iver Brevik, Johan S. Høye +1
The controversy concerning the temperature correction to the Casimir force has been ongoing for almost a decade with no view to a solution and has recently been extended to include…
UHECR observations and lensing in the magnetic field of the Virgo cluster
K. Dolag, M. Kachelriess, D. V. Semikoz
We discuss how lensing by magnetic fields in galaxy clusters affects ultrahigh energy cosmic ray (UHECR) observations. As specific example, we use Virgo together with the cluster m…
Two-Fluid Viscous Modified Gravity on a RS Brane
Iver Brevik
Singularities in the dark energy late universe are discussed, under the assumption that the Lagrangian contains the Einstein term R plus a modified gravity term R^α, where αis a co…
Josephson current in diffusive multilayer superconductor/ferromagnet/superconductor junctions
Iver B. Sperstad, Jacob Linder, Asle Sudbø
We calculate the Josephson current in a diffusive superconductor/ferromagnet/superconductor junction, where the ferromagnetic region contains multiple layers (or domains). In parti…
Equidistribution of the Fekete points on the sphere
Jordi Marzo, Joaquim Ortega-Cerdà
The Fekete points are the points that maximize a Vandermonde-type determinant that appears in the polynomial Lagrange interpolation formula. They are well suited points for interpo…