Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.9k papers
- University of MichiganUS2k papers
- Institute for High Energy PhysicsES1.9k papers
- University College LondonGB1.9k papers
- University of ManchesterGB1.9k papers
- University of BonnDE1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.8k papers
- Brookhaven National LaboratoryUS1.8k papers
- University of ArizonaUS1.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.8k papers
- Max Planck Institute for PhysicsDE1.8k papers
- Aix-Marseille UniversitéFR1.8k papers
133 papers · 1 filter
Supersymmetric structure of spacetime and matter -superon-graviton model-
Kazunari Shima
A unified description of spacetime and matter is proposed by using a single irreducible representation of SO(10) Super-Poincare algebra(SO(10)SPA). All (observed) elementary partic…
Nonabelian noncommutative gauge fields and Seiberg-Witten map
Branislav Jurco, Peter Schupp, Julius Wess
Noncommutative gauge fields (similar to the type that arises in string theory with background B-fields) are constructed for arbitrary nonabelian gauge groups with the help of a map…
Decoupling Braided Tensor Factors
Gaetano Fiore, Harold Steinacker, Julius Wess
We briefly report on our result that the braided tensor product algebra of two module algebras of a quasitriangular Hopf algebra is equal to the ordinary tensor produ…
The Cuspy LINER Nucleus of the S0/a Galaxy NGC 2681
Michele Cappellari, Francesco Bertola, David Burstein +3
The nucleus of the bulge-dominated, multiply-barred S0/a galaxy NGC 2681 is studied in detail, using high resolution Hubble Space Telescope FOC and NICMOS imaging and FOS spectrosc…
Stellar spectroscopy far beyond the Local Group
Fabio Bresolin, Rolf-Peter Kudritzki, Roberto H. Mendez +1
Multi-object spectroscopic observations of blue supergiants in NGC 3621, a spiral galaxy at a distance of 6.7 Mpc, carried out with the ESO VLT and FORS are presented. We demonstra…
On the minimum and maximum mass of neutron stars and the delayed collapse
Klaus Strobel, Manfred K. Weigel
The minimum and maximum mass of protoneutron stars and neutron stars are investigated. The hot dense matter is described by relativistic (including hyperons) and non-relativistic e…
On Metric Perturbations in Brane-World Scenarios
Andrey Neronov, Ivo Sachs
In this note we reconsider linearised metric perturbations in the one-brane Randall-Sundrum Model. We present a simple formalism to describe metric perturbations caused by matter p…
de Sitter Brane Gravity: from Close-Up to Panorama
Maulik K. Parikh, Sergey N. Solodukhin
We find explicitly the induced graviton propagator on de Sitter branes embedded in various five-dimensional spacetimes; de Sitter branes in AdS and Minkowski space are particular c…
Optics with an Atom Laser Beam
Immanuel Bloch, Michael Köhl, Markus Greiner +2
We report on the atom optical manipulation of an atom laser beam. Reflection, focusing and its storage in a resonator are demonstrated. Precise and versatile mechanical control ove…
A linear radiofrequency ion trap for accumulation, bunching, and emittance improvement of radioactive ion beams
F. Herfurth, J. Dilling, A. Kellerbauer +10
An ion beam cooler and buncher has been developed for the manipulation of radioactive ion beams. The gas-filled linear radiofrequency ion trap system is installed at the Penning tr…
Orthonormal bases of polynomials in one complex variable
D. P. L. Castrigiano, W. Klopfer
Let a sequence of polynomials in one complex variable satisfy a recurre ce relation with length growing slowlier than linearly. It is shown that is an orthonormal…
A nanomechanical resonator shuttling single electrons at radio frequencies
A. Erbe, C. Weiss, W. Zwerger +1
We observe transport of electrons through a metallic island on the tip of a nanomechanical pendulum. The resulting tunneling current shows distinct features corresponding to the di…
A note on the torsion dependence of D-brane RR couplings
Claudio A. Scrucca, Marco Serone
The dependence on the torsion H=db of the Wess-Zumino couplings of D-branes that are trivially embedded in space-time is studied. We show that even in this simple set-up some torsi…
Isospin Symmetry Breaking and the -System
H. Fritzsch, A. S. Muller
Simple quark models for the low lying vector mesons suggest a mixing between the u- and d-flavors and a violation of the isospin symmetry for the - system much stronger than o…
Non-LTE analysis of neutral magnesium in cool stars
G. Zhao, T. Gehren
Calculations of the statistical equilibrium of magnesium in the solar photosphere have shown that NLTE populations hardly affect Mg line formation in the Sun. However, in metal-poo…
Electromagnetic Dissociation as a Tool for Nuclear Structure and Astrophysics
Gerhard Baur, Kai Hencken, Dirk Trautmann +2
Coulomb dissociation is an especially simple and important reaction mechanism. Since the perturbation due to the electric field of the nucleus is exactly known, firm conclusions ca…
Radiation-driven winds of hot stars. XIII. A description of NLTE line blocking and blanketing towards realistic models of expanding atmospheres
A. W. A. Pauldrach, T. L. Hoffmann, M. Lennon
We present significant improvements of our approach in constructing detailed atmospheric models and synthetic spectra for hot luminous stars: 1. A sophisticated and consistent desc…
Coherent coupling of two quantum dots embedded in an Aharonov-Bohm ring
A. W. Holleitner, C. R. Decker, K. Eberl +1
We define two laterally gated small quantum dots (~ 15 electrons) in an Aharonov-Bohm geometry in which the coupling between the two dots can be broadly changed. For weakly coupled…
Cycles, submanifolds, and structures on normal bundles
C. Bohr, B. Hanke, D. Kotschick
We give explicit examples of degree 3 cohomology classes not Poincare dual to submanifolds, and discuss the realisability of homology classes by submanifolds with Spin-C normal bun…
On the asymptotic linking number
Thomas Vogel
We prove a theorem formulated by V. I. Arnold concerning a relation between the asymptotic linking number and the Hopf invariant of divergence-free vector fields. Using a modified…
Gravity in Warped Compactifications and the Holographic Stress Tensor
Sebastian de Haro, Kostas Skenderis, Sergey N. Solodukhin
We study gravitational aspects of Brane-World scenarios. We show that the bulk Einstein equations together with the junction condition imply that the induced metric on the brane sa…
Democratic Neutrino Mixing and Radiative Corrections
Zhi-zhong Xing
The renormalization effect on a specific ansatz of lepton mass matrices, arising naturally from the breaking of flavor democracy for charged leptons and that of mass degeneracy for…
A generalized Hamiltonian Constraint Operator in Loop Quantum Gravity and its simplest Euclidean Matrix Elements
Marcus Gaul, Carlo Rovelli
We study a generalized version of the Hamiltonian constraint operator in nonperturbative loop quantum gravity. The generalization is based on admitting arbitrary irreducible SU(2)…
A syntactical analysis of non-size-increasing polynomial time computation
Klaus Aehlig, Helmut Schwichtenberg
A syntactical proof is given that all functions definable in a certain affine linear typed lambda-calculus with iteration in all types are polynomial time computable. The proof pro…