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
99 papers · 1 filter
One-Loop QCD Spin Chain and its Spectrum
N. Beisert, G. Ferretti, R. Heise +1
We study the renormalization of gauge invariant operators in large Nc QCD. We compute the complete matrix of anomalous dimensions to leading order in the 't Hooft coupling and stud…
AdS twistors for higher spin theory
Martin Cederwall
We construct spectra of supersymmetric higher spin theories in D=4, 5 and 7 from twistors describing massless (super-)particles on AdS spaces. A massless twistor transform is deriv…
A possible 3:2 orbital epicyclic resonance in QPOs frequencies of Sgr A*
Gabriel Török
A recent measurement of double peak QPOs frequencies in Sgr A* is consistent with the 3:2 ratio. The same ratio is firmly established by previous observations in all double peak kH…
"Safe" Coulomb Excitation of 30Mg
O. Niedermaier, H. Scheit, V. Bildstein +9
We report on the first radioactive beam experiment performed at the recently commissioned REX-ISOLDE facility at CERN in conjunction with the highly efficient gamma spectrometer MI…
Superconducting critical current of a single Cu2O4-plane in Bi2Sr2CaCu2O8+x single crystal
L. X. You, A. Yurgens, D. Winkler
By feeding current into the topmost -layer of a mesa etched into the surface of a (BSCCO) single crystal, we measured its superco…
Analysis strategies and software for geodetic VLBI
R. Haas
This article describes currently used analysis strategy and data analysis software for geodetic VLBI.Today's geodetic observing strategies are shortly presented, and the geodetic V…
Momentum selectivity and anisotropy effects in the nitrogen K-edge resonant inelastic X-ray scattering from GaN
V. N. Strocov, T. Schmitt, J. -E. Rubensson +3
High-resolution soft X-ray emission and absorption spectra near the N K-edge of wurtzite GaN are presented. The experimental data are interpreted in terms of band structure based f…
Measuring non-Gaussian fluctuations through incoherent Cooper pair current
Tero T. Heikkila, Pauli Virtanen, Goran Johansson +1
We study a Josephson junction (JJ) in the regime of incoherent Cooper pair tunneling, capacitively coupled to a nonequilibrium noise source. The current-voltage (I-V) characteristi…
Comment on "Mn Interstitial Diffusion in (Ga,Mn)As"
M. Adell, J. Kanski, L. Ilver +2
The magnetic and transport properties of (GaMn)As are known to be influenced by postgrowth annealing, and it is generally accepted that these modifications are due to outdiffusion…
The signature of dark energy on the local Hubble flow
Andrea V. Maccio', Fabio Governato, Cathy Horellou
Using N-body simulations of flat, dark energy dominated cosmologies, we show that galaxies around simulated binary systems resembling the Local Group (LG) have low peculiar velocit…
Real Space Imaging of One-Dimensional Standing Waves: Direct Evidence for a Luttinger Liquid
Jhinhwan Lee, Sebastian Eggert, H. Kim +3
Electronic standing waves with two different wavelengths were directly mapped near one end of a single-wall carbon nanotube as a function of the tip position and the sample bias vo…
Epicyclic frequencies derived from the effective potential: simple and practical formulae
M. A. Abramowicz, W. Kluzniak
We present and discuss a short and simple derivation of orbital epicyclic frequencies for circular geodesic orbits in stationary and axially symmetric spacetimes. Such spacetimes i…
SiO masers in TX Cam: Simultaneous VLBA observations of two 43 GHz masers at four epochs
Jiyune Yi, R. S. Booth, J. E. Conway +1
We present the results of simultaneous high resolution observations of v=1 and v=2, J=1-0 SiO masers toward TX Cam at four epochs covering a stellar cycle. Near maser maximum (Epoc…
A general catalogue of 6.7 GHz methanol masers. I: data
M. Pestalozzi, V. Minier, R. Booth
Methanol masers are often detected in regions of intense star formation. Several studies in the last decade indicate that they may even be the earliest signpost of a high-mass star…
The Aschenbach effect: unexpected topology changes in motion of particles and fluids orbiting rapidly rotating Kerr black holes
Z. Stuchlik, P. Slany, G. Torok +1
Newton's theory predicts that the velocity of free test particles on circular orbits around a spherical gravity center is a decreasing function of the orbital radius , $dV/d…
On the connection between sets of operator synthesis and sets of spectral synthesis for locally compact groups
Jean Ludwig, Lyudmila Turowska
We extend the results by Froelich and Spronk and Turowska on the connection between operator synthesis and spectral synthesis for A(G) to second countable locally compact groups G.…
Super-Eddington black hole accretion: Polish doughnuts and slim disks
Marek A. Abramowicz
The theory of highly super-Eddington black hole accretion was developed in the 1980s in Warsaw by Paczynski and his collaborators in terms of "Polish doughnuts", i.e. low viscosity…
Wave-kinetic description of nonlinear photons
M. Marklund, P. K. Shukla, G. Brodin +1
The nonlinear interaction, due to quantum electrodynamical (QED) effects, between photons is investigated using a wave-kinetic description. Starting from a coherent wave descriptio…
A possibility to measure elastic photon--photon scattering in vacuum
Daniel Eriksson, Gert Brodin, Mattias Marklund +1
Photon--photon scattering in vacuum due to the interaction with virtual electron-positron pairs is a consequence of quantum electrodynamics. A way for detecting this phenomenon has…
Planar SFS Josephson Junctions Made by Focused Ion Beam Etching
V. M. Krasnov, O. Ericsson, S. Intiso +4
Superconductor-Ferromagnet-Superconductor (S-F-S) Josephson junctions were fabricated by making a narrow cut through a S-F double layer using direct writing by Focused Ion Beam (FI…
Two-channel Anderson Impurity Model: Single-electron Green's function, self-energies, and resistivity
H. Johannesson, C. J. Bolech, N. Andrei
We compute exactly the low-energy single-electron Green's function, the impurity and electron self-energies, and the resistivity for the two-channel Anderson impurity model. These…
Current measurement by real-time counting of single electrons
Jonas Bylander, Tim Duty, Per Delsing
The fact that electrical current is carried by individual charges has been known for over 100 years, yet this discreteness has not been directly observed so far. Almost all current…
Matrix Assisted Formation of Ferrihydrite Nanoparticles in a Siloxane/Poly(Oxyethylene) Nanohybrid
Nuno J. O. Silva, Vitor S. Amaral, Veronica de Zea Bermudez +4
Matrix-assisted formation of ferrihydrite, an iron oxide hydroxide analogue of the protein ferritin-core, in a sol-gel derived organic-inorganic hybrid is reported. The hybrid netw…
Non-interactive correlation distillation, inhomogeneous Markov chains, and the reverse Bonami-Beckner inequality
Elchanan Mossel, Ryan O'Donnell, Oded Regev +2
In this paper we study non-interactive correlation distillation (NICD), a generalization of the study of noise sensitivity of boolean functions. We extend the model to NICD on tree…