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
119 papers · 1 filter
Cyclicity of singular inner functions from the corona theorem
Omar El-Fallah, Karim Kellay, Kristian Seip
Carleson's corona theorem is used to obtain two results on cyclicity of singular inner functions in weighted Bergman-type spaces on the unit disk. Our method proof requires no regu…
Tailored bright illumination attack on distributed-phase-reference protocols
Lars Lydersen, Johannes Skaar, Vadim Makarov
Detector control attacks on quantum key distribution systems exploit the linear mode of avalanche photodiode in single photon detectors. So far, the protocols under consideration h…
Reply to "Avoiding the Detector Blinding Attack on Quantum Cryptography"
Lars Lydersen, Carlos Wiechers, Christoffer Wittmann +3
This is a reply to the comment by Yuan et al. [arXiv:1009.6130v1] on our publication [arXiv:1008.4593].
Phenomenology of Current-Induced Dynamics in Antiferromagnets
Kjetil M. D. Hals, Yaroslav Tserkovnyak, Arne Brataas
We derive a phenomenological theory of current-induced staggered magnetization dynamics in antiferromagnets. The theory captures the reactive and dissipative current-induced torque…
A crossed-product approach to the Cuntz-Li algebras
S. Kaliszewski, M. Landstad, John Quigg
Cuntz and Li have defined a C*-algebra associated to any integral domain, using generators and relations, and proved that it is simple and purely infinite and that it is stably iso…
Abstract Wave Equations and Associated Dirac-Type Operators
Fritz Gesztesy, Jerome A. Goldstein, Helge Holden +1
We discuss the unitary equivalence of generators associated with abstract damped wave equations of the type in some Hilbert space $\ma…
Model for reflection and transmission matrices of nanowire end facets
Guro K. Svendsen, Helge Weman, Johannes Skaar
Nanowires show a large potential for various electrooptical devices, such as light emitting diodes, solar cells and nanowire lasers. We present a direct method developed to calcula…
Dark Matter Explanation from Quasi-Metric Gravity
Dag Østvang
The gravitational field of an isolated, axisymmetric flat disk of spinning dust is calculated approximately in the weak-field limit of quasi-metric gravity. Boundary conditions sin…
New States of Matter Suggested by New Topological Structures
Nils A. Baas
We extend the well-known Borromean and Brunnian rings to new higher order versions. Then we suggest an extension of the connection between Efimov states in cold gases and Borromean…
Josephson effect in S/F/S junctions: spin bandwidth asymmetry vs. Stoner exchange
Gaetano Annunziata, Henrik Enoksen, Jacob Linder +3
We analyze the dc Josephson effect in a ballistic superconductor/ferromagnet/superconductor junction by means of the Bogoliubov-de Gennes equations in the quasiclassical Andreev ap…
Evidence of deep water penetration in silica during stress corrosion fracture
F. Lechenault, C. L. Rountree, F. Cousin +3
We measure the thickness of the heavy water layer trapped under the stress corrosion fracture surface of silica using neutron reflectivity experiments. We show that the penetration…
Kaon condensation in CFL quark matter, the Goldstone theorem, and the 2PI Hartree approximation
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…
The chiral phase transition and the role of vacuum fluctuations
Rashid Khan, Lars T. Kyllingstad
We investigate the chiral phase transition in the quark-meson effective model using optimised perturbation theory to one loop. Certain terms in the free energy are frequently omitt…
Index maps in the K-theory of graph algebras
Toke M. Carlsen, Søren Eilers, Mark Tomforde
Let be the graph -algebra associated to a graph E and let J be a gauge invariant ideal in . We compute the cyclic six-term exact sequence in -theory of the…
On the spectral vanishing viscosity method for periodic fractional conservation laws
Simone Cifani, Espen R. Jakobsen
We introduce and analyze a spectral vanishing viscosity approximation of periodic fractional conservation laws. The fractional part of these equations can be a fractional Laplacian…
The structure of a the C*-algebra of a locally injective surjection
Toke Meier Carlsen, Klaus Thomsen
We obtain a description of the C*-algebras which can occur as a simple quotient of the C*-algebra of a locally injective surjection on a compact metric space of finite covering dim…
On Isotropic Turbulence in the Dark Fluid Universe
Iver Brevik, Olesya Gorbunova, Shin'ichi Nojiri +1
As first part of this work, experimental information about the decay of isotropic turbulence in ordinary hydrodynamics, u^2(t) proportional to t^{-6/5}, is used as input in FRW equ…
Approximate simulation-free Bayesian inference for multiple changepoint models with dependence within segments
Jason Wyse, Nial Friel, Håvard Rue
This paper proposes approaches for the analysis of multiple changepoint models when dependency in the data is modelled through a hierarchical Gaussian Markov random field. Integrat…
Substrate influence on the plasmonic response of clusters of spherical nanoparticles
Paul Anton Letnes, Ingve Simonsen, D. L. Mills
The plasmonic response of nanoparticles is exploited in many subfields of science and engineering to enhance optical signals associated with probes of nanoscale and subnanoscale en…
Hankel operators on Fock spaces and related Bergman kernel estimates
Kristian Seip, El Hassan Youssfi
Hankel operators with anti-holomorphic symbols are studied for a large class of weighted Fock spaces on $\cn$. The weights defining these Hilbert spaces are radial and subject to a…
Preserving multiple first integrals by discrete gradients
Morten Dahlby, Brynjulf Owren, Takaharu Yaguchi
We consider systems of ordinary differential equations with known first integrals. The notion of a discrete tangent space is introduced as the orthogonal complement of an arbitrary…
Hard-thermal-loop QCD Thermodynamics
Michael Strickland, Jens O. Andersen, Lars E. Leganger +1
Naively resummed perturbative approximations to the thermodynamic functions of QCD do not converge at phenomenologically relevant temperatures. Here we review recent results of a t…
Full-field implementation of a perfect eavesdropper on a quantum cryptography system
Ilja Gerhardt, Qin Liu, Antia Lamas-Linares +3
Quantum key distribution (QKD) allows two remote parties to grow a shared secret key. Its security is founded on the principles of quantum mechanics, but in reality it significantl…
Feedback control of noise in spin valves by the spin-transfer torque
Swarnali Bandopadhyay, Arne Brataas, Gerrit E. W. Bauer
The miniaturisation of magnetic read heads and random access memory elements makes them vulnerable to thermal fluctuations. We demonstrate how current-induced spin-transfer torques…