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
43 papers · 1 filter
On the runaway instability of relativistic tori
M. A. Abramowicz, V. Karas, A. Lanza
We further investigate the runaway instability of relativistic tori around black holes assuming a power law distribution of the specific angular momentum. We neglect the self-gravi…
Quantum Decoherence and Weak Localization at Low Temperatures
Dmitrii S. Golubev, Andrei D. Zaikin
We develope a theory of a fundamental effect of the interaction-induced decoherence of the electron wave function in a disordered metal. With the aid of the Keldysh technique and t…
Ensemble Density Functional Approach to Charge-Spin Textures in Inhomogeneous Quantum Hall Systems
O. Heinonen, J. M. Kinaret, M. D. Johnson
We extend our ensemble density functional approach to quantum Hall systems to include non-collinear spins to study charge-spin textures in inhomogeneous quantum Hall systems. We ha…
An action for the super-5-brane in D=11 supergravity
Martin Cederwall, Bengt E. W. Nilsson, Per Sundell
An alternative path is taken for deriving an action for the supersymmetric 5-brane in 11 dimensions. Selfduality does not follow from the action, but is consistent with the equatio…
Superembeddings, Non-Linear Supersymmetry and 5-branes
Tom Adawi, Martin Cederwall, Ulf Gran +2
We examine general properties of superembeddings, i.e., embeddings of supermanifolds into supermanifolds. The connection between an embedding procedure and the method of non-linear…
Free-electron Model for Mesoscopic Force Fluctuations in Nanowires
S. Blom, H. Olin, J. L. Costa-Kramer +4
When two metal electrodes are separated, a nanometer sized wire (nanowire) is formed just before the contact breaks. The electrical conduction measured during this retraction proce…
Properties of a Luttinger Liquid with Boundaries at Finite Temperature and Size
Ann E. Mattsson, Sebastian Eggert, Henrik Johannesson
We use bosonization methods to calculate the exact finite-temperature single-electron Green's function of a spinful Luttinger liquid confined by open boundaries. The corresponding…
Shuttle Mechanism for Charge Transfer in Coulomb Blockade Nanostructures
L. Y. Gorelik, A. Isacsson, M. V. Voinova +3
Room-temperature Coulomb blockade of charge transport through composite nanostructures containing organic inter-links has recently been observed. A pronounced charging effect in co…
Nonlinear conductance of nanowires - A signature of Luttinger liquid effects?
M. Jonson, I. V. Krive, P. Sandström +1
We analyze recent measurements of the room temperature current-voltage characteristics of gold nanowires, whose zero current conductance is quantized in units of . A faster…
The Caltech-Jodrell Bank VLBI Surveys
T. J. Pearson, I. W. A. Browne, D. R. Henstock +7
The Caltech-Jodrell Bank VLBI surveys of bright extragalactic radio sources north of declination 35 deg were carried out between 1990 and 1995 using the Mark-II system, achieving i…
Coulomb correlations and coherent charge tunneling in mesoscopic coupled rings
C. M. Canali, W. Stephan, L. Y. Gorelik +2
We study the effect of a strong electron-electron (e-e) interaction in a system of two concentric one-dimensional rings with incommensurate areas A_1 and A_2, coupled by a tunnel a…
Multichannel Kondo Effect in an Interacting Electron System: Exact Results for the Low-Temperature Thermodynamics
M. Granath, H. Johannesson
We study the low-temperature thermodynamics of a spin-S magnetic impurity coupled to m degenerate bands of interacting electrons in one dimension. By exploiting boundary conformal…
Quantum Decoherence in Disordered Mesoscopic Systems
Dmitrii S. Golubev, Andrei D. Zaikin
We point out that the low temperature saturation of the electron phase decoherence time in a disordered conductor can be explained within the existing theory of weak localization p…
World-volume fields, SL(2;Z) and duality: The type IIB 3-brane
Martin Cederwall, Anders Westerberg
We propose a method for constructing super-brane actions where every background tensor potential corresponds to a world-volume field strength. The procedure provides a natural coup…
Comparison of Zn_{1-x}Mn_xTe/ZnTe multiple-quantum wells and quantum dots by below-bandgap photomodulated reflectivity
P. J. Klar, D. Wolverson, D. E. Ashenford +2
Large-area high density patterns of quantum dots with a diameter of 200 nm have been prepared from a series of four Zn_{0.93}Mn_{0.07}Te/ZnTe multiple quantum well structures of di…
Superconducting d-wave junctions: The disappearance of the odd ac components
Tomas Lofwander, Goran Johansson, Magnus Hurd +1
We study voltage-biased superconducting planar d-wave junctions for arbitrary transmission and arbitrary orientation of the order parameters of the superconductors. For a certain o…
Alignment of nematic liquid crystals on mixed Langmuir-Blodgett mono-layers
V. S. U. Fazio, L. Komitov, S. T. Lagerwall
Mono-layers of stearic and behenic acids and mixtures of them in different proportions, deposited with the Langmuir-Blodgett technique, were used to study the alignment and the ali…
Slim accretion discs: a model for ADAF-SLE transitions
I. V. Igumenshchev, M. A. Abramowicz, I. D. Novikov
We numerically construct slim, global, vertically integrated models of optically thin, transonic accretion discs around black holes, assuming a regularity condition at the sonic ra…
Statistical theory of thermal instability
A. F. Illarionov, I. V. Igumenshchev
A new statistical approach is presented to study the thermal instability process of optically thin unmagnetized plasma. In this approach the time evolution of mass distribution fun…
Spectroscopy of PKS 0528-260: New Limits on CO Absorption and Emission
Jian Ge, Jill Bechtold, Constance Walker +2
We have obtained a moderate resolution spectrum of the quasar PKS 0528-250 with the Red Channel Spectrograph on the Multiple Mirror Telescope (MMT) in order to study a damped Lyman…
Molecular absorption lines at high redshift: PKS1413+135 (z=0.247)
Tommy Wiklind, Francoise Combes
A detailed study of the absorbing molecular clouds towards the radio source PKS1413+135, at a redshift z=0.247, is reported. Physical conditions are derived for the molecular gas i…
Exact two-loop vacuum polarization correctionto the Lamb shift in hydrogen-like ions
G. Plunien, T. Beier, G. Soff +1
We present a calculation scheme for the two-loop vacuum polarization correction of order to the Lamb shift of hydrogen-like high-Z atoms. The interaction with the external Co…
Coulomb blockade effects in anodised niobium nanostructures
Torsten Henning, D. B. Haviland, P. Delsing
Niobium thin film wires were fabricated using electron beam lithography with a four layer liftoff mask system, and subsequently thinned by anodisation. The resistance along the wir…
Dissipative Electron Transport through Andreev Interferometers
H. A. Blom, A. Kadigrobov, A. M. Zagoskin +2
We consider the conductance of an Andreev interferometer, i.e., a hybrid structure where a dissipative current flows through a mesoscopic normal (N) sample in contact with two supe…