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
22 papers · 1 filter
Representations of the Exceptional Lie superalgebra $E(3,6): II. Four series of degenerate modules
Victor G. Kac, Alexei Rudakov
Four $\ZZ_+$-bigraded complexes with the action of the exceptional infinite-dimensional Lie superalgebra E(3,6) are constructed. We show that all the images and cokernels and all b…
Representations of the Exceptional Lie superalgebra E(3,6): I. Degeneracy conditions
Victor G. Kac, Alexi Rudakov
Recently one of the authors obtained a classification of simple infinite-dimensional Lie superalgebras of vector fields which extends the well-known classification of E. Cartan in…
Roughness of Crack Interfaces in Two-Dimensional Beam Lattices
Bjorn Skjetne, Torbjorn Helle, Alex Hansen
The roughness of crack interfaces is reported in quasistatic fracture, using an elastic network of beams with random breaking thresholds. For strong disorders we obtain 0.86(3) for…
Quantum (In)Stability of a Brane-World AdS Universe at Nonzero Temperature
Iver Brevik, Kimball A. Milton, Shin'ichi Nojiri +1
We consider the quantum effects of bulk matter (scalars, spinors) in the Randall-Sundrum AdS brane-world at nonzero temperature. The thermodynamic energy (modulus potential) is…
Stability Puzzles in Phage Lambda
Erik Aurell, Stanley Brown, Johan Johanson +1
The lysogeny maintenance switch in phage lambda is one of the simplest examples on the molecular level of computation, command and control in a living system. If, following infecti…
Elastic Response of Rough Surfaces in Partial Contact
G. George Batrouni, Alex Hansen, Jean Schmittbuhl
We model numerically the partial normal contact of two elastic rough surfaces with highly correlated asperities. Facing surfaces are unmated and described as self-affine with a Hur…
Light scattering from an amplifying medium bounded by a randomly rough surface: A numerical study
Ingve Simonsen, Tamara A. Leskova, Alexei A. Maradudin
We study by numerical simulations the scattering of -polarized light from a rough dielectric film deposited on the planar surface of a semi-infinite perfect conductor. The diele…
Hausdorff dimension of critical fluctuations in abelian gauge theories
J. Hove, S. Mo, A. Sudbo
The geometric properties of the critical fluctuations in abelian gauge theories such as the Ginzburg-Landau model are analyzed in zero background field. Using a dual description, w…
The Casimir Problem of Spherical Dielectrics: Quantum Statistical and Field Theoretical Approaches
J. S. Høye, I. Brevik, J. B. Aarseth
The Casimir free energy for a system of two dielectric concentric nonmagnetic spherical bodies is calculated with use of a quantum statistical mechanical method, at arbitrary tempe…
Bulk Flow Regimes and Fractional Flow in 2D Porous Media by Numerical Simulations
Henning Arendt Knudsen, Eyvind Aker, Alex Hansen
We investigate a two-dimensional network simulator that model the dynamics of two-phase immiscible bulk flow where film flow can be neglected. We present a method for simulating th…
A protein model exhibiting three folding transitions
Audun Bakk, Alex Hansen, Kim Sneppen
We explain the physical basis of a model for small globular proteins with water interactions. The water is supposed to access the protein interior in an "all-or-none" manner during…
Thermodynamical implications of a protein model with water interactions
Audun Bakk, Johan S. Hoye, Alex Hansen +1
We refine a protein model that reproduces fundamental aspects of protein thermodynamics. The model exhibits two transitions, hot and cold unfolding. The number of relevant paramete…
Macroscopic Interference Effects in Resonant Cavities
Bo-Sture K Skagerstam, Bjorn A Bergsjordet, Per K. Rekdal
We investigate the possibility of interference effects induced by macroscopic quantum-mechanical superpositions of almost othogonal coherent states - a Schroedinger cats state - in…
Comment on Casimir energy for spherical boundaries
I. Brevik, B. Jensen, K. A. Milton
It is shown that recent criticism by C. R. Hagen (hep-th/9902057) questioning the validity of stress tensor treatments of the Casimir energy for space divided into two parts by a s…
Theory of the Microscopic Maser Phase Transitions
Per K Rekdal, Bo-Sture K Skagerstam
Phase diagrams of the micromaser system are mapped out in terms of the physical parameters at hand like the atom cavity transit time, the atom-photon frequency detuning, the number…
Burst dynamics during drainage displacements in porous media: Simulations and experiments
Eyvind Aker, Knut Jorgen Maloy, Alex Hansen +1
We investigate the burst dynamics during drainage going from low to high injection rate at various fluid viscosities. The bursts are identified as pressure drops in the pressure si…
Can a Kasner Universe with a Viscous Cosmological Fluid be Anisotropic?
I. Brevik, S. V. Pettersen
A Bianchi type -I metric of Kasner form is considered, when the space is filled with a viscous fluid. Whereas an ideal (nonviscous) fluid permits the Kasner metric to be anisotropi…
Dynamical Casimir Effect and Quantum Cosmology
I. Brevik, K. A. Milton, S. D. Odintsov +1
We apply the background field method and the effective action formalism to describe the four-dimensional dynamical Casimir effect. Our picture corresponds to the consideration of q…
Anomalous scaling dimensions and stable charged fixed-point of type-II superconductors
J. Hove, A. Sudbo
The critical properties of a type-II superconductor model are investigated using a dual vortex representation. Computing the propagators of gauge field and dual gauge fie…
Finite Temperature Casimir Effect for a Dilute Ball Satisfying
I. Brevik, T. A. Yousef
The finite temperature Casimir free energy is calculated for a dielectric ball of radius embedded in an infinite medium. The condition is assumed for the inside/outside…
Quantum Annihilation of Anti- de Sitter Universe
Iver Brevik, Sergei D. Odintsov
We discuss the role of conformal matter quantum effects (using large anomaly induced effective action) to creation-annihilation of an Anti-de Sitter Universe. The arbitrary GUT…
Extended d_{x^2 - y^2}-wave superconductivity
Giuseppe G. N. Angilella, Asle Sudboe, Renato Pucci
Remarkable anisotropic structures have been recently observed in the order parameter Delta_k of the underdoped superconductor Bi-2212. Such findings are strongly suggestive of devi…