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359 papers · 1 filter

cond-mat.stat-mech2019★ 11 cited

Lévy noise induced transitions and enhanced stability in a birhythmic van der Pol system

René Yamapi, Raoul Mbakob Yonkeu, Giovanni Filatrella +1

This work describes the effects of Lévy noise on a birhythmic van der Pol like oscillator. Numerical simulations demonstrate that the noise induced escapes from an attractor to ano…

physics.atom-ph2019★ 18 cited

Precise Lifetime Measurement of the Cesium State

S. Pucher, P. Schneeweiss, A. Rauschenbeutel +1

We measure the lifetime of the cesium state using a time-resolved single-photon-counting method. We excite atoms in a hot vapor cell via an electric quadrupole transit…

hep-lat2019★ 44 cited

Asymptotic behavior of cutoff effects in Yang-Mills theory and in Wilson's lattice QCD

Nikolai Husung, Peter Marquard, Rainer Sommer

Discretization effects of lattice QCD are described by Symanzik's effective theory when the lattice spacing, , is small. Asymptotic freedom predicts that the leading asymptotic…

astro-ph.HE2019★ 18 cited

Simultaneous observations of the blazar PKS2155-304 from Ultra-Violet to TeV energies

H. E. S. S., Fermi, NuSTAR collaborations

The results of the first ever contemporaneous multi-wavelength observation campaign on the BL Lac object PKS2155-304 involving Swift, NuSTAR, Fermi-LAT and H.E.S.S. are reported. T…

hep-lat2019★ 25 cited

Non-perturbative renormalization by decoupling

Mattia Dalla Brida, Roman Höllwieser, Francesco Knechtli +3

We propose a new strategy for the determination of the QCD coupling. It relies on a coupling computed in QCD with degenerate heavy quarks at a low energy scale $…

hep-lat2019★ 17 cited

-states and the projection method for the nucleon axial and pseudoscalar form factors

Oliver Bar

The RQCD collaboration proposed a projection method to remove the excited state contamination in lattice OCD calculations of nuclear form factors. The effectiveness of this method…

astro-ph.HE2019★ 25 cited

H.E.S.S. and Fermi-LAT observations of PSR B1259-63/LS 2883 during its 2014 and 2017 periastron passages

H. E. S. S. Collaboration, H. Abdalla, R. Adam +222

PSR B1259-63/LS 2883 is a gamma-ray binary system consisting of a pulsar in an eccentric orbit around a bright Oe stellar-type companion star that features a dense circumstellar di…

astro-ph.HE2019★ 7 cited

Search for galactic Pevatron candidates in a population of unidentified gamma-ray sources

Gerrit Spengler

Lower limits on the energy cutoff for unidentified gamma-ray sources detected in the HESS galactic plane survey are derived. Additional public data from the VERITAS, HESS and Milag…

math.NA2019

Generalized Circuit Elements

Idoia Cortes Garcia, Sebastian Schöps, Christian Strohm +1

The structural analysis, i.e., the investigation of the differential-algebraic nature, of circuits containing simple elements, i.e., resistances, inductances and capacitances is we…

physics.atom-ph2019★ 152 cited

The Bose-Einstein Condensate and Cold Atom Laboratory

Kai Frye, Sven Abend, Wolfgang Bartosch +48

Microgravity eases several constraints limiting experiments with ultracold and condensed atoms on ground. It enables extended times of flight without suspension and eliminates the…

physics.med-ph2019★ 77 cited

3D-Imaging and Quantification of Magnetic Nanoparticle Uptake by Living Cells

Hendrik Paysen, Norbert Loewa, Anke Stach +7

Magnetic particle imaging (MPI) is a non-invasive, non-ionizing imaging technique for the visualization and quantification of magnetic nanoparticles (MNPs). The technique is especi…

astro-ph.HE2019★ 12 cited

Searches for neutrinos from cosmic-ray interactions in the Sun using seven years of IceCube data

IceCube Collaboration, M. G. Aartsen, M. Ackermann +358

Cosmic-ray interactions with the solar atmosphere are expected to produce particle showers which in turn produce neutrinos from weak decays of mesons. These solar atmospheric neutr…

math.AP2019★ 3 cited

Bounded and Almost Periodic Solvability of Nonautonomous Quasilinear Hyperbolic Systems

Irina Kmit, Lutz Recke, Viktor Tkachenko

The paper concerns boundary value problems for general nonautonomous first order quasilinear hyperbolic systems in a strip. We construct small global classical solutions, assuming…

math-ph2019★ 3 cited

Hölder estimates for magnetic Schrödinger semigroups in from mirror coupling

Oliver Fürst, Batu Güneysu

We use the mirror coupling of Brownian motion to show that under a -dependent Kato type assumption (which is satisfied under a suitable -assumption on the electro-…

hep-th2019★ 22 cited

Amplitude recursions with an extra marked point

Johannes Broedel, Andre Kaderli

The recursive calculation of Selberg integrals by Aomoto and Terasoma using the Knizhnik-Zamolodchikov equation and the Drinfeld associator makes use of an auxiliary point and faci…

hep-ex2019★ 9 cited

Measurement of isolated-photon plus two-jet production in collisions at TeV with the ATLAS detector

ATLAS Collaboration

The dynamics of isolated-photon plus two-jet production in collisions at a centre-of-mass energy of 13 TeV are studied with the ATLAS detector at the LHC using a dataset corre…

hep-th2019★ 23 cited

A note on the Drinfeld associator for genus-zero superstring amplitudes in twisted de Rham theory

Andre Kaderli

The string corrections of tree-level open-string amplitudes can be described by Selberg integrals satisfying a Knizhnik-Zamolodchikov (KZ) equation. This allows for a recursion of…

hep-ex2019★ 90 cited

Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in = 13 TeV collisions with the ATLAS detector

Atlas Collaboration

A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell and bosons is presented…

cond-mat.mtrl-sci2019★ 146 cited

Artifcial-intelligence-driven discovery of catalyst \textit{genes} with application to CO2 activation on semiconductor oxides

Aliaksei Mazheika, Yanggang Wang, Rosendo Valero +5

Catalytic-materials design requires predictive modeling of the interaction between catalyst and reactants. This is challenging due to the complexity and diversity of structure-prop…

hep-th2019★ 57 cited

Yangian Bootstrap for Conformal Feynman Integrals

Florian Loebbert, Dennis Müller, Hagen Münkler

We explore the idea to bootstrap Feynman integrals using integrability. In particular, we put the recently discovered Yangian symmetry of conformal Feynman integrals to work. As a…

cs.CL2019

A Collaborative Ecosystem for Digital Coptic Studies

Caroline T. Schroeder, Amir Zeldes

Scholarship on underresourced languages bring with them a variety of challenges which make access to the full spectrum of source materials and their evaluation difficult. For Copti…

hep-ex2019★ 19 cited

Resonances in annihilation near 2.2 GeV

The BABAR Collaboration

Using the initial-state radiation method, the cross section from 1.98 to 2.54 GeV is measured in a data sample of 469 fb collected with the BABAR detect…

math.NA2019★ 14 cited

High Performance Solution of Skew-symmetric Eigenvalue Problems with Applications in Solving the Bethe-Salpeter Eigenvalue Problem

Carolin Penke, Andreas Marek, Christian Vorwerk +2

We present a high-performance solver for dense skew-symmetric matrix eigenvalue problems. Our work is motivated by applications in computational quantum physics, where one solution…

hep-th2019★ 21 cited

Green-Schwarz Mechanism for String Dualities

Camille Eloy, Olaf Hohm, Henning Samtleben

We determine the complete spacetime action to first order in for the massless fields of bosonic string theory compactified on a -dimensional torus. A fully systematic proce…