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
94 papers · 1 filter
Fundamental domains of cluster categories inside module categories
Juan Ángel Cappa, Maria Inés Platzeck, Idun Reiten
Let be a finite dimensional hereditary algebra over an algebraically closed field, and let be the corresponding cluster category. We give a description of the…
Cooperation, structure and hierarchy in multiadaptive games
Sungmin Lee, Petter Holme, Zhi-Xi Wu
Game-theoretical models where the rules of the game and the interaction structure both coevolves with the game dynamics -- multiadaptive games -- capture very flexible situations w…
Torsion pairs and rigid objects in tubes
Karin Baur, Aslak Bakke Buan, Bethany Marsh
We classify the torsion pairs in a tube category and show that they are in bijection with maximal rigid objects in the extension of the tube category containing the Pruefer and adi…
Cosmic Ray Anisotropy as Signature for the Transition from Galactic to Extragalactic Cosmic Rays
G. Giacinti, M. Kachelriess, D. V. Semikoz +1
We constrain the energy at which the transition from Galactic to extragalactic cosmic rays occurs by computing the anisotropy at Earth of cosmic rays emitted by Galactic sources. S…
Algebraic structure of stochastic expansions and efficient simulation
Kurusch Ebrahimi-Fard, Alexander Lundervold, Simon J. A. Malham +2
We investigate the algebraic structure underlying the stochastic Taylor solution expansion for stochastic differential systems.Our motivation is to construct efficient integrators.…
Non-Fraunhofer Interference Pattern in Inhomogeneous Ferromagnetic Josephson Junctions
Mohammad Alidoust, Granville Sewell, Jacob Linder
Generic conditions are established for producing a non-Fraunhofer response of the critical supercurrent subject to an external magnetic field in ferromagnetic Josephson junctions.…
Repulsive Casimir Effects
K. A. Milton, E. K. Abalo, Prachi Parashar +3
Like Casimir's original force between conducting plates in vacuum, Casimir forces are usually attractive. But repulsive Casimir forces can be achieved in special circumstances. The…
Casimir Friction Force for Moving Harmonic Oscillators
Johan S. Høye, Iver Brevik
Casimir friction is analyzed for a pair of dielectric particles in relative motion. We first adopt a microscopic model for harmonically oscillating particles at finite temperature…
Global solutions for the two-component Camassa-Holm system
K. Grunert, H. Holden, X. Raynaud
We prove existence of a global conservative solution of the Cauchy problem for the two-component Camassa-Holm (2CH) system on the line, allowing for nonvanishing and distinct asymp…
A Multi-Factor Security Protocol for Wireless Payment - Secure Web Authentication using Mobile Devices
Ayu Tiwari, Sudip Sanyal, Ajith Abraham +2
Previous Web access authentication systems often use either the Web or the Mobile channel individually to confirm the claimed identity of the remote user. This paper proposes a new…
Quantum criticality in a dissipative (2+1)-dimensional XY model of circulating currents in high-Tc cuprates
Iver Bakken Sperstad, Einar B. Stiansen, Asle Sudbø
We present large-scale Monte Carlo results for the dynamical critical exponent z and the spatio-temporal two-point correlation function of a (2+1)-dimensional quantum XY model with…
Interpretations of Cosmological Spectral Shifts
Dag Østvang
It is shown that for Robertson-Walker models with flat or closed space sections, all of the cosmological spectral shift can be attributed to the non-flat connection (and thus indir…
On an Achievable Rate of Large Rayleigh Block-Fading MIMO Channels with No CSI
Keigo Takeuchi, Ralf R. Mueller, Mikko Vehkaperae +1
Training-based transmission over Rayleigh block-fading multiple-input multiple-output (MIMO) channels is investigated. As a training method a combination of a pilot-assisted scheme…
Casimir-Polder repulsion: Polarizable atoms, cylinders, spheres, and ellipsoids
Kimball A. Milton, Prachi Parashar, Nima Pourtolami +1
Recently, the topic of Casimir repulsion has received a great deal of attention, largely because of the possibility of technological application. The general subject has a long his…
Intrinsic Spin Swapping
Severin Sadjina, Arne Brataas, A. G. Mal'shukov
Here, we study diffusive spin transport in two dimensions and demonstrate that an intrinsic analog to a previously predicted extrinsic spin swapping effect, where the spin polariza…
Phase-shift inversion in oscillator systems with periodically switching couplings
Sang Hoon Lee, Sungmin Lee, Seung-Woo Son +1
A system's response to external periodic changes can provide crucial information about its dynamical properties. We investigate the synchronization transition, an archetypical exam…
Local Magnetic Turbulence and TeV-PeV Cosmic Ray Anisotropies
G. Giacinti, G. Sigl
In the energy range from ~ 10^12 eV to ~ 10^15 eV, the Galactic cosmic ray flux has anisotropies both on large scales, with an amplitude of the order of 0.1%, and on scales between…
Stability conditions and quantum dilogarithm identities for Dynkin quivers
Yu Qiu
We study fundamental group of the exchange graphs for the bounded derived category D(Q) of a Dynkin quiver Q and the finite-dimensional derived category D(Γ_N Q) of the Calabi-Yau-…
Investigations of Bragg reflectors in nanowire lasers
Guro Kristin Svendsen, Helge Weman, Johannes Skaar
The reflectivity of various Bragg reflectors in connection to waveguide structures, including nanowires, has been investigated using modal reflection and transmission matrices. A s…
Going off grid: Computationally efficient inference for log-Gaussian Cox processes
Daniel Simpson, Janine Illian, Finn Lindgren +2
This paper introduces a new method for performing computational inference on log-Gaussian Cox processes. The likelihood is approximated directly by making novel use of a continuous…
Microdroplet oscillations during optical pulling
Simen Å. Ellingsen
It was recently shown theoretically that it is possible to pull a spherical dielectric body towards the source of a laser beam [Nature Photonics {\bf 5}, 531 (2011)], a result with…
Screening properties and phase transitions in unconventional plasmas for Ising-type quantum Hall states
Egil Herland, Egor Babaev, Parsa Bonderson +3
Utilizing large-scale Monte-Carlo simulations, we investigate an unconventional two-component classical plasma in two dimensions which controls the behavior of the norms and overla…
Simple Cuntz-Pimsner rings
Toke Meier Carlsen, Eduard Ortega, Enrique Pardo
Necessary and sufficient conditions for when every non-zero ideal in a relative Cuntz-Pimsner ring contains a non-zero graded ideal, when a relative Cuntz-Pimsner ring is simple, a…
Table of hyperfine anomaly in atomic systems
Jonas R. Persson
This table is a compilation of experimental values of magnetic hyperfine anomaly in atomic and ionic systems. The last extensive compilation was published in 1984 by Buttgenbach (H…