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
96 papers · 1 filter
M5-branes and Matrix Theory
Martin Cederwall, Henric Larsson
We consider supermembranes ending on M5-branes, with the aim of deriving the appropriate matrix theories describing different situations. Special attention is given to the case of…
Free Evolution of Superposition States in a Single Cooper Pair Box
A. Guillaume, J. F. Schneiderman, P. Delsing +2
We have fabricated a single Cooper-pair box (SCB) in close proximity to a single electron transistor (SET) operated in the radio-frequency mode (RF-SET) with an inductor and capaci…
An elementary approach to 6j-symbols (classical, quantum, rational, trigonometric, and elliptic)
Hjalmar Rosengren
Elliptic 6j-symbols first appeared in connection with solvable models of statistical mechanics. They include many interesting limit cases, such as quantum 6j-symbols (or q-Racah po…
Interpreting black hole QPOs
Marek A. Abramowicz, Wlodzimierz Kluzniak
In all the microquasars with two hHz QPOs, the ratio of the frequencies is 3:2, supporting our suggestion that a non-linear resonance between two modes of oscillation in the accret…
Weak antilocalization in quantum wells in tilted magnetic fields
G. M. Minkov, A. V. Germanenko, O. E. Rut +4
Weak antilocalization is studied in an InGaAs quantum well. Anomalous magnetoresistance is measured and described theoretically in fields perpendicular, tilted and parallel to the…
Effects of surface forces and phonon dissipation in a three-terminal nano relay
L. M. Jonsson, T. Nord, S. Viefers +1
We have performed a theoretical analysis of the operational characteristics of a carbon-nanotube-based three-terminal nanorelay. We show that short range and van der Waals forces h…
Transverse modulational instability of partially incoherent soliton stripes
D. Anderson, L. Helczynski-Wolf, M. Lisak +1
Based on the Wigner distribution approach, an analysis of the effect of partial incoherence on the transverse instability of soliton structures in nonlinear Kerr media is presented…
Coherent current transport in wide ballistic Josephson junctions
P. Samuelsson, A. Ingerman, G. Johansson +7
We present an experimental and theoretical investigation of coherent current transport in wide ballistic superconductor-two dimensional electron gas-superconductor junctions. It is…
Phase dependent current statistics in short-arm Andreev interferometer
E. V. Bezuglyi, E. N. Bratus', V. S. Shumeiko +1
We calculate analytically the current statistics for a short diffusive wire between the normal reservoir and a short superconductor-normal metal-superconductor (SNS) junction, at a…
Nonlocal effects in high energy charged particle beams
Pontus Johannisson, Dan Anderson, Mietek Lisak +3
Within the framework of the thermal wave model, an investigation is made of the longitudinal dynamics of high energy charged particle beams. The model includes the self-consistent…
Nonlinear Propagation of Incoherent Photons in a Radiation Background
Padma K. Shukla, Mattias Marklund, Gert Brodin +1
The nonlinear propagation of intense incoherent photons in a photon gas is considered. The photon-photon interactions are governed by a pair of equations comprising a wave-kinetic…
Global classical solutions to the spherically symmetric Nordström-Vlasov system
Håkan Andréasson, Simone Calogero, Gerhard Rein
Classical solutions of the spherically symmetric Nordström-Vlasov system are shown to exist globally in time. The main motivation for investigating the mathematical properties of t…
Quantum Description of Shuttle Instability in Nanoelectromechanical Single Electron Transistor
D. Fedorets
The voltage dependence of nanoelectromechanical effects in a system where the quantized mechanical vibrations of a quantum dot are coupled to coherent tunneling of electrons throug…
An Introduction to Supersymmetric Gauge Theories and Matrix Models
Riccardo Argurio, Gabriele Ferretti, Rainer Heise
We give an introduction to the recently established connection between supersymmetric gauge theories and matrix models. We begin by reviewing previous material that is required in…
Quantum Shuttle Phenomena in a Nanoelectromechanical Single-Electron Transistor
D. Fedorets, L. Y. Gorelik, R. I. Shekhter +1
An analytical analysis of quantum shuttle phenomena in a nanoelectromechanical single-electron transistor has been performed in the realistic case, when the electron tunnelling len…
Coagulation by Random Velocity Fields as a Kramers Problem
B. Mehlig, M. Wilkinson
We analyse the motion of a system of particles suspended in a fluid which has a random velocity field. There are coagulating and non-coagulating phases. We show that the phase tran…
On the colour-colour properties of the Extremely Red Objects
Stefan Bergstrom, Tommy Wiklind
The colours of the galaxy class known as Extremely Red Objects (EROs; R-K>5) are considered to be consistent with two distinct galaxy populations at high redshift: evolved elliptic…
Cosmic magnetic fields from velocity perturbations in the early Universe
Gerold Betschart, Peter K. S. Dunsby, Mattias Marklund
We show, using a covariant and gauge-invariant charged multifluid perturbation scheme, that velocity perturbations of the matter-dominated dust Friedmann-Lemaitre-Robertson-Walker…
Nonlinear resonant wave interaction in vacuum
Gert Brodin, Daniel Eriksson, Mattias Marklund
The basic equations governing propagation of electromagnetic and gravitational waves in vacuum are nonlinear. As a consequence photon-photon interaction as well as photon-graviton…
Dynamics of radiation due to vacuum nonlinearities
Mattias Marklund, Gert Brodin, Lennart Stenflo +1
In quantum electrodynamics, photon-photon scattering can be the result of the exchange of virtual electron-positron pairs. This gives rise to a non-trivial dispersion relation for…
Poincare series and zeta function for an irreducible plane curve singularity
Jan Stevens
The Poincare series of an irreducible plane curve singularity equals the zeta function of its monodromy, by a result of Campillo, Delgado and Gusein-Zade. We derive this fact from…
Silent Phase Qubit Based on d-Wave Josephson Junctions
M. H. S. Amin, A. Yu. Smirnov, A. M. Zagoskin +4
We report on design and fabrication of a new type of flux qubit that capitalizes on intrinsic properties of submicron YBCO grain boundary junctions. The operating point is protecte…
On the Weyl anomaly of Wilson surfaces
Andreas Gustavsson
We compute the Weyl anomaly for an abelian Wilson surface by using a regularization that respects the gauge invariance. We then study the loop space on which lives a one-form conne…
Boundary susceptibility in the spin-1/2 chain: Curie like behavior without magnetic impurities
Satoshi Fujimoto, Sebastian Eggert
We investigate the low-temperature thermodynamics of the spin-1/2 Heisenberg chain with open ends. On the basis of boundary conformal field theory arguments and numerical density m…