Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of GothenburgSE951 papers
- Centre National de la Recherche ScientifiqueFR805 papers
- Leiden UniversityNL590 papers
- Max Planck Institute for Radio AstronomyDE405 papers
- European Southern ObservatoryCL356 papers
- Center for Astrophysics Harvard & SmithsonianUS313 papers
- Leiden Observatory304 papers
- California Institute of TechnologyUS296 papers
- National Astronomical Observatory of JapanJP280 papers
- Observatoire de ParisFR268 papers
- Stockholm UniversitySE262 papers
- Centro de AstrobiologíaES252 papers
75 papers · 1 filter
Uniqueness and non-uniqueness in percolation theory
Olle Häggström, Johan Jonasson
This paper is an up-to-date introduction to the problem of uniqueness versus non-uniqueness of infinite clusters for percolation on and, more generally, on transit…
Nonlinear resonance in a three-terminal carbon nanotube resonator
A. Isacsson, J. M. Kinaret, R. Kaunisto
The RF-response of a three-terminal carbon nanotube resonator coupled to RF-transmission lines is studied by means of perturbation theory and direct numerical integration. We find…
The 4(th) structure
A. Stolin, J. Yermolova-Magnusson
In this paper we describe all Lie bialgebra structures on the polynomial Lie algebra , where is a simple, finite dimensional, complex Lie algebra. The r…
Overluminous HNC Line Emission in Arp220, NGC4418 and Mrk231 - Global IR Pumping or XDRs?
S. Aalto, M. Spaans, M. C. Wiedner +1
We find that the HNC J=3-2 emission is brighter than the HCN 3-2 emission by factors of 1.5 to 2.3 in the ultraluminous mergers Arp220 and Mrk231 and the luminous IR galaxy NGC4418…
A general catalogue of 6.7GHz methanol masers II: statistical analysis
Michele R. Pestalozzi, A. Chrysostomou, J. Collett +3
Context: Methanol masers at 6.7GHz are recognised markers of high-mass star formation regions. The study of their distribution in the Galaxy gives important insights into the star…
Triplet supercurrents in clean and disordered half-metallic ferromagnets
M. Eschrig, T. Löfwander
Interfaces between materials with differently ordered phases present unique opportunities to study fundamental problems in physics. One example is the interface between a singlet s…
Reading-out the state of a flux qubit by Josephson transmission line solitons
Arkady Fedorov, Alexander Shnirman, Gerd Schön +1
We describe the read-out process of the state of a Josephson flux qubit via solitons in Josephson transmission lines (JTL) as they are in use in the standard rapid single flux quan…
Global existence for the spherically symmetric Einstein-Vlasov system with outgoing matter
Hakan Andreasson, Markus Kunze, Gerhard Rein
We prove a new global existence result for the asymptotically flat, spherically symmetric Einstein-Vlasov system which describes in the framework of general relativity an ensemble…
Towards a working density-functional theory for polymers: First-principles determination of the polyethylene crystal structure
Jesper Kleis, Bengt I. Lundqvist, David C. Langreth +1
Equilibrium polyethylene crystal structure, cohesive energy, and elastic constants are calculated by density-functional theory applied with a recently proposed density functional (…
On the steady states of the spherically symmetric Einstein-Vlasov system
Hakan Andreasson, Gerhard Rein
Using both numerical and analytical tools we study various features of static, spherically symmetric solutions of the Einstein-Vlasov system. In particular, we investigate the poss…
Simultaneous readout of two charge qubits
J. Li, G. Johansson
We consider a system of two solid state charge qubits, coupled to a single read-out device, consisting of a single-electron transistor (SET). The conductance of each tunnel junctio…
Weighted integral formulas on manifolds
Elin Götmark
We present a method of finding weighted Koppelman formulas for -forms on -dimensional complex manifolds which admit a vector bundle of rank over , suc…
Some explicit constructions of sets with more sums than differences
Peter Hegarty
We present a variety of new results on finite sets A of integers for which the sumset A+A is larger than the difference set A-A, so-called MSTD (more sums than differences) sets. F…
Radon transform on real, complex and quaternionic Grassmannians
Genkai Zhang
Let $G_{n,k}(\bbK)$ be the Grassmannian manifold of -dimensional $\bbK$-subspaces in $\bbK^n$ where $\bbK=\mathbb R, \mathbb C, \mathbb H$ is the field of real, complex or quate…
BPS surface observables in six-dimensional (2,0) theory
Par Arvidsson
The supergroup OSp(8*|4), which is the superconformal group of (2,0) theory in six dimensions, is broken to the subgroup OSp(4|2)xOSp(4|2) by demanding the invariance of a certain…
Dispersive Charge and Flux Qubit Readout as a Quantum Measurement Process
L. Tornberg, G. Johansson
We analyze the dispersive readout of superconducting charge and flux qubits as a quantum measurement process. The measurement oscillator frequency is considered much lower than the…
Submillimetre observations of comets with Odin: 2001-2005
N. Biver, D. Bockelée-Morvan, J. Crovisier +7
The Odin satellite, launched in Feb. 2001, is equipped with a 1.1-m submillimetre telescope. Odin was used to observe the 557 GHz line of water with high spectral resolution in 12…
Radio observations of comet 9P/Tempel 1 before and after Deep Impact
N. Biver, D. Bockelée-Morvan, J. Boissier +14
Comet 9P/Tempel 1 was the target of a multi-wavelength worldwide investigation in 2005. The NASA Deep Impact mission reached the comet on 4.24 July 2005, delivering a 370 kg impact…
Sums of squares from elliptic pfaffians
Hjalmar Rosengren
We give a new proof of Milne's formulas for the number of representations of an integer as a sum of 4m^2 and 4m(m+1) squares. The proof is based on explicit evaluation of pfaffians…
An ab initio study of a field-induced position change of a C60 molecule adsorbed on a gold tip
R. Stadler, S. Kubatkin, T. Bjornholm
Recent I/V curve measurements suggest that C60 molecules deposited in gold nanojunctions change their adsorption configuration when a finite voltage in a 2-terminal setting is appl…
Arbitrary accuracy iterative phase estimation algorithm as a two qubit benchmark
M. Dobsicek, G. Johansson, V. S. Shumeiko +1
We discuss the implementation of an iterative quantum phase estimation algorithm, with a single ancillary qubit. We suggest using this algorithm as a benchmark for multi-qubit impl…
Analysis of spiral arms using anisotropic wavelets: gas, dust and magnetic fields in M51
I. Patrikeev, A. Fletcher, R. Stepanov +4
We have developed a technique of isolating elongated structures in galactic images, such as spiral arms, using anisotropic wavelets and apply this to maps of the CO, infrared and r…
Self-gravitating stationary spherically symmetric systems in relativistic galactic dynamics
Mikael Fjällborg, J. Mark Heinzle, Claes Uggla
We study equilibrium states in relativistic galactic dynamics which are described by solutions of the Einstein-Vlasov system for collisionless matter. We recast the equations into…
Investigation of topographical stability of the concave and convex Self-Organizing Map variant
Fabien Molle, Jens Christian Claussen
We investigate, by a systematic numerical study, the parameter dependence of the stability of the Kohonen Self-Organizing Map and the Zheng and Greenleaf concave and convex learnin…