Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.8k papers
- Deutsches Elektronen-Synchrotron DESYDE1.7k papers
- Lawrence Berkeley National LaboratoryUS1.7k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.7k papers
- TU Dortmund UniversityDE1.6k papers
- Heidelberg UniversityDE1.6k papers
- The Ohio State UniversityUS1.6k papers
- Stockholm UniversitySE1.6k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.5k papers
- University of California, IrvineUS1.5k papers
- Johannes Gutenberg University MainzDE1.5k papers
- Laboratoire de Physique Nucléaire et de Hautes ÉnergiesFR1.5k papers
135 papers · 1 filter
Lattice Gauge Actions for Fixed Topology
XLF Collaboration, W. Bietenholz, K. Jansen +4
We test a set of lattice gauge actions for QCD that suppress small plaquette values and in this way also suppress transitions between topological sectors. This is well suited for s…
Isotropic A-branes and the stability condition
Stefano Chiantese
The existence of a new kind of branes for the open topological A-model is argued by using the generalized complex geometry of Hitchin and the SYZ picture of mirror symmetry. Mirror…
On the Ricci tensor in type II B string theory
I. Agricola, T. Friedrich, P. -A. Nagy +1
Let be a metric connection with totally skew-symmetric torsion $\T$ on a Riemannian manifold. Given a spinor field and a dilaton function , the basic equations in t…
The Outer Tracker Detector of the HERA-B Experiment. Part II: Front-End Electronics
H. Albrecht et al.
The HERA-B Outer Tracker is a large detector with 112674 drift chamber channels. It is exposed to a particle flux of up to 2x10^5/cm^2/s thus coping with conditions similar to thos…
Noise-Induced Transition from Translational to Rotational Motion of Swarms
Udo Erdmann, Werner Ebeling, Alexander S. Mikhailov
We consider a model of active Brownian agents interacting via a harmonic attractive potential in a two-dimensional system in the presence of noise. By numerical simulations, we sho…
The influence of Gribov copies on the gluon and ghost propagator
A. Sternbeck, E. -M. Ilgenfritz, M. Mueller-Preussker +1
The dependence of the gluon and ghost propagator in pure SU(3) gauge theory on the choice of Gribov copies in Landau gauge is studied. Simulations were performed on several lattice…
Resolvents of self-adjoint extensions with mixed boundary conditions
Konstantin Pankrashkin
We prove a variant of Krein's resolvent formula expressing the resolvents of self-adjoint extensions through the associated boundary conditions. Applications to solvable quantum-me…
Strong Coupling Dynamics of the Higgs Branch: Rolling a Higgs by Collapsing an Instanton
Zachary Guralnik
We construct the dual supergravity description of strongly coupled, large , eight-supercharge gauge theories with fundamental hypermultiplets at points on the mixed Coulomb-Higg…
Pion, sigma-meson and diquarks in the 2SC phase of dense cold quark matter
D. Ebert, K. G. Klimenko, V. L. Yudichev
The spectrum of meson and diquark excitations of dense cold quark matter is investigated in the framework of a Nambu--Jona-Lasinio type model for light quarks of two flavors. It wa…
The monopole content of topological clusters : have KvB calorons been found?
E. -M. Ilgenfritz, B. V. Martemyanov, M. Müller-Preussker +1
Using smearing of equilibrium lattice fields generated at finite temperature in the confined phase of SU(2) lattice gauge theory, we have investigated the emerging topological obje…
Theory of field induced spin reorientation transition in thin Heisenberg films
S. Schwieger, J. Kienert, W. Nolting
We consider the spin reorientation transition in a ferromagnetic Heisenberg monolayer with a second order single ion anisotropy as a function of temperature and external field. Up…
Computation of the strong coupling in QCD with two dynamical flavours
Michele Della Morte, Roberto Frezzotti, Jochen Heitger +3
We present a non-perturbative computation of the running of the coupling alpha_s in QCD with two flavours of dynamical fermions in the Schroedinger functional scheme. We improve ou…
H.E.S.S. Observations of PKS 2155-304
The H. E. S. S. Collaboration, :, F. Aharonian
The high-frequency peaked BL Lac PKS 2155-304 at redshift z=0.117 has been detected with high significance (~45 sigma) at energies greater than 160 GeV, using the H.E.S.S. stereosc…
High-energy particle acceleration in the shell of a supernova remnant
H. E. S. S. Collaboration, :, F. Aharonian
A significant fraction of the energy density of the interstellar medium is in the form of high-energy charged particles (cosmic rays). The origin of these particles remains uncerta…
Strong spin triplet contribution of the first removal state in the insulating regime of Bi2Sr2Ca1-xYxCu2O8+delta
C. Janowitz, U. Seidel, R. -ST. Unger +4
The experimental dispersion of the first removal state in the insulating regime of Bi2Sr2Ca1-xYxCu2O8+delta is found to differ significantly from that of other parent materials: ox…
Single-photon generation and simultaneous observation of wave and particle properties
Thomas Aichele, Ulrike Herzog, Matthias Scholz +1
We describe an experiment that generates single photons on demand and measures properties accounted to both particle- and wave-like features of light. The measurement is performed…
Going chiral: overlap versus twisted mass fermions
W. Bietenholz, S. Capitani, T. Chiarappa +11
We compare the behavior of overlap fermions, which are chirally invariant, and of Wilson twisted mass fermions at full twist in the approach to the chiral limit. Our quenched simul…
On-diagonal singularities of the Green functions for Schroedinger operators
Jochen Bruening, Vladimir Geyler, Konstantin Pankrashkin
We investigate the behavior of the Green functions of Schroedinger operators near the diagonal. The only non-trivial cases, where the on-diagonal singularities are non-zero and do…
Transition times and stochastic resonance for multidimensional diffusions with time periodic drift: A large deviations approach
Samuel Herrmann, Peter Imkeller, Dierk Peithmann
We consider potential type dynamical systems in finite dimensions with two meta-stable states. They are subject to two sources of perturbation: a slow external periodic perturbatio…
Non-perturbative definition of five-dimensional gauge theories on the R^4 x S^1/Z_2 orbifold
Nikos Irges, Francesco Knechtli
We construct a Z_2 orbifold projection of SU(N) gauge theories formulated in five dimensions with a compact fifth dimension. We show through a non-perturbative argument that no bou…
From Diffusion to Anomalous Diffusion: A Century after Einstein's Brownian Motion
I. M. Sokolov, J. Klafter
Einstein's explanation of Brownian motion provided one of the cornerstones which underlie the modern approaches to stochastic processes. His approach is based on a random walk pict…
Theory of the Relativistic Brownian Motion. The (1+1)-Dimensional Case
Jörn Dunkel, Peter Hänggi
We construct a theory for the 1+1-dimensional Brownian motion in a viscous medium, which is (i) consistent with Einstein's theory of special relativity, and (ii) reduces to the sta…
Signal at subleading order in lattice HQET
S. Dürr, A. Jüttner, J. Rolf +1
We discuss the correlators in lattice HQET that are needed to go beyond the static theory. Based on our implementation in the Schrödinger functional we focus on their signal-to-noi…
Advantages of Hopping on a Zig-zag Course
Lutz Schimansky-Geier, Udo Erdmann, Niko Komin
We investigate self-moving particles which prefer to hop with a certain turning angle equally distributed to the right or left. We assume this turning angle distribution to be give…