Showing 2014Show all

391 papers · 1 filter

math.OC2014★ 3 cited

Meanfield games and model predictive control

Pierre Degond, Michael Herty, Jian-Guo Liu

Mean-Field Games are games with a continuum of players that incorporate the time-dimension through a control-theoretic approach. Recently, simpler approaches relying on the Best Re…

quant-ph2014★ 13 cited

A tunable, nonlinear Hong-Ou-Mandel interferometer

David Oehri, Mikhail Pletyukhov, Vladimir Gritsev +2

We investigate the two-photon scattering properties of a Jaynes-Cummings (JC) nonlinearity consisting of a two-level system (qubit) interacting with a single mode cavity, which is…

cond-mat.mes-hall2014★ 11 cited

Effective spin theories for edge magnetism in graphene zigzag ribbons

Cornelie Koop, Manuel J. Schmidt

We report a thorough study of the reducibility of edge correlation effects in graphene to much-simplified effective models for the edge states. The latter have been used before in…

cond-mat.mes-hall2014★ 32 cited

Contact-induced charge contributions to non-local spin transport measurements in Co/MgO/graphene devices

F. Volmer, M. Drögeler, T. Pohlmann +3

Recently, it has been shown that oxide barriers in graphene-based non-local spin-valve structures can be the bottleneck for spin transport. The barriers may cause spin dephasing du…

hep-ph2014★ 173 cited

HAWK 2.0: A Monte Carlo program for Higgs production in vector-boson fusion and Higgs strahlung at hadron colliders

Ansgar Denner, Stefan Dittmaier, Stefan Kallweit +1

The Monte Carlo integrator HAWK provides precision predictions for Higgs production at hadron colliders in vector-boson fusion and Higgs strahlung, i.e. in production processes whe…

hep-ph2014★ 72 cited

The bottom-quark mass from non-relativistic sum rules at NNNLO

M. Beneke, A. Maier, J. Piclum +1

We determine the mass of the bottom quark from high moments of the bottom production cross section in e+ e- annihilation, which are dominated by the threshold region. On the theory…

cond-mat.mes-hall2014★ 6 cited

Characterization of S-T Transition Dynamics via Correlation Measurements

Christian Dickel, Sandra Foletti, Vladimir Umansky +1

Nuclear spins are an important source of dephasing for electron spin qubits in GaAs quantum dots. Most studies of their dynamics have focused on the relatively slow longitudinal po…

math.NA2014★ 3 cited

Adaptive Low-Rank Methods for Problems on Sobolev Spaces with Error Control in

Markus Bachmayr, Wolfgang Dahmen

Low-rank tensor methods for the approximate solution of second-order elliptic partial differential equations in high dimensions have recently attracted significant attention. A cri…

math.NA2014★ 10 cited

High-order well-balanced finite-volume schemes for barotropic flows. Development and numerical comparisons

Normann Pankratz, Jostein R. Natvig, Bjørn Gjevik +1

In this paper we compare a classical finite-difference and a high order finite- volume scheme for barotropic ocean flows. We compare the schemes with respect to their accuracy, sta…

cs.SE2014★ 38 cited

User-driven Privacy Enforcement for Cloud-based Services in the Internet of Things

Martin Henze, Lars Hermerschmidt, Daniel Kerpen +3

Internet of Things devices are envisioned to penetrate essentially all aspects of life, including homes and urbanspaces, in use cases such as health care, assisted living, and smar…

cond-mat.mtrl-sci2014★ 215 cited

Ferroelectricity and Rashba effect in GeTe

C. Rinaldi, D. Di Sante, A. Giussani +9

GeTe has been proposed as the father compound of a new class of functional materials displaying bulk Rashba effects coupled to ferroelectricity: ferroelectric Rashba semiconductors…

math.AP2014★ 4 cited

Asymmetric domain walls of small angle in soft ferromagnetic films

Lukas Döring, Radu Ignat

We focus on a special type of domain walls appearing in the Landau-Lifshitz theory for soft ferromagnetic films. These domain walls are divergence-free -valued transition laye…

cs.NI2014★ 6 cited

HotBox: Testing Temperature Effects in Sensor Networks

Florian Schmidt, Matteo Ceriotti, Niklas Hauser +1

Low-power wireless networks, especially in outside deployments, are exposed to a wide range of temperatures. The detrimental effect of high temperatures on communication quality is…

cond-mat.mes-hall2014★ 16 cited

Charge-noise tolerant exchange gates of singlet-triplet qubits in asymmetric double quantum dots

Tuukka Hiltunen, Hendrik Bluhm, Sebastian Mehl +1

In the semi-conductor double quantum dot singlet-triplet qubit architecture, the decoherence caused by the qubit's charge environment poses a serious obstacle in the way towards la…

cond-mat.str-el2014★ 32 cited

Low-temperature properties of single-crystal CrB

Andreas Bauer, Alexander Regnat, Christian G. F. Blum +6

We report the low-temperature properties of B-enriched single-crystal CrB as prepared from high-purity Cr and B powder by a solid-state reaction and optical float zoni…

math.NA2014

A Weakly Asymptotic Preserving Low Mach Number Scheme for the Euler Equations of Gas Dynamics

Sebastian Noelle, Georgij Binev, K. R. Arun +2

We propose a low Mach number, Godunov-type finite volume scheme for the numerical solution of the compressible Euler equations of gas dynamics. The scheme combines Klein's non-stif…

math.NA2014★ 19 cited

Flux Splitting for stiff equations: A notion on stability

Jochen Schütz, Sebastian Noelle

For low Mach number flows, there is a strong recent interest in the development and analysis of IMEX (implicit/explicit) schemes, which rely on a splitting of the convective flux i…

cond-mat.str-el2014★ 24 cited

Spin dynamics of the bilinear-biquadratic Heisenberg model on the triangular lattice: a quantum Monte Carlo study

Annika Völl, Stefan Wessel

We study thermodynamic properties as well as the dynamical spin and quadrupolar structure factors of the O(3)-symmetric spin-1 Heisenberg model with bilinear-biquadratic exchange i…

hep-ex2014★ 743 cited

Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV

CMS Collaboration

Properties of the Higgs boson with mass near 125 GeV are measured in proton-proton collisions with the CMS experiment at the LHC. Comprehensive sets of production and decay measure…

cond-mat.str-el2014★ 31 cited

Band Structure and Terahertz Optical Conductivity of Transition Metal Oxides: Theory and Application to CaRuO

Hung T. Dang, Jernej Mravlje, Antoine Georges +1

Density functional plus dynamical mean field calculations are used to show that in transition metal oxides, rotational and tilting (GdFeO-type) distortions of the ideal cubic p…

math-ph2014★ 41 cited

Model Reduction of Kinetic Equations by Operator Projection

Yuwei Fan, Julian Koellermeier, Jun Li +2

By a further study of the mechanism of the hyperbolic regularization of the moment system for Boltzmann equation proposed in [Z. Cai, Y. Fan, R. Li, Comm. Math. Sci. 11(2): 547-571…

quant-ph2014★ 21 cited

Fault-Tolerant Quantum Computation for Singlet-Triplet Qubits with Leakage Errors

Sebastian Mehl, Hendrik Bluhm, David P. DiVincenzo

We describe and analyze leakage errors of singlet-triplet qubits. Even though leakage errors are a natural problem for spin qubits encoded using quantum dot arrays, they have obtai…

astro-ph.HE2014★ 164 cited

Search for Prompt Neutrino Emission from Gamma-Ray Bursts with IceCube

IceCube Collaboration, M. G. Aartsen, M. Ackermann +300

We present constraints derived from a search of four years of IceCube data for a prompt neutrino flux from gamma-ray bursts (GRBs). A single low-significance neutrino, compatible w…

hep-ex2014★ 168 cited

Search for physics beyond the standard model in dilepton mass spectra in proton-proton collisions at sqrt(s) = 8 TeV

CMS Collaboration

Dimuon and dielectron mass spectra, obtained from data resulting from proton-proton collisions at 8 TeV and recorded by the CMS experiment, are used to search for both narrow reson…