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202 papers · 1 filter

nucl-th2012★ 64 cited

Living on the edge of stability, the limits of the nuclear landscape

C. Forssen, G. Hagen, M. Hjorth-Jensen +2

A first-principles description of nuclear systems along the drip lines presents a substantial theoretical and computational challenge. In this paper, we discuss the nuclear theory…

cond-mat.mes-hall2012★ 11 cited

Spectral footprints of impurity scattering in graphene nanoribbons

Anders Bergvall, Tomas Lofwander

We report a detailed investigation of the interplay between size quantization and local scattering centers in graphene nanoribbons, as seen in the local density of states. The spec…

astro-ph.GA2012★ 161 cited

The thermal state of molecular clouds in the Galactic Center: evidence for non-photon-driven heating

Y. Ao, C. Henkel, K. M. Menten +6

We used the Atacama Pathfinder Experiment (APEX) 12 m telescope to observe the J_KaKc=3_03-2_02, 3_22-2_21, and 3_21-2_20 transitions of para-H_2CO at 218 GHz simultaneously to det…

astro-ph.CO2012★ 124 cited

A precise and accurate determination of the cosmic microwave background temperature at z=0.89

S. Muller, A. Beelen, J. H. Black +6

According to the Big Bang theory and as a consequence of adiabatic expansion of the Universe, the temperature of the cosmic microwave background (CMB) increases linearly with redsh…

gr-qc2012★ 38 cited

Rotating, stationary, axially symmetric spacetimes with collisionless matter

Håkan Andréasson, Markus Kunze, Gerhard Rein

The existence of stationary solutions to the Einstein-Vlasov system which are axially symmetric and have non-zero total angular momentum is shown. This provides mathematical models…

hep-th2012★ 2 cited

Zero-mode dynamics in supersymmetric Yang-Mills-Chern-Simons theory

Mans Henningson

We consider minimally supersymmetric Yang-Mills theory with a Chern-Simons term on a flat spatial two-torus in the limit when the torus becomes small. The zero-modes of the fields…

math.NT2012★ 3 cited

Maass forms on GL(3) and GL(4)

David W. Farmer, Sally Koutsoliotas, Stefan Lemurell

We describe a practical method for finding an L-function without first finding the associated underlying object. The procedure involves using the Euler product and the approximate…

astro-ph.SR2012★ 31 cited

Centauri A in the far infrared

R. Liseau, B. Montesinos, G. Olofsson +15

Chromospheres and coronae are common phenomena on solar-type stars. Understanding the energy transfer to these heated atmospheric layers requires direct access to the relevant empi…

physics.med-ph2012★ 2 cited

Physics of Wound Healing I: Energy Considerations

S. Peter Apell, Michael Neidrauer, Elisabeth S. Papazoglou +1

Wound healing is a complex process with many components and interrelated processes on a microscopic level. This paper addresses a macroscopic view on wound healing based on an ener…

cs.IT2012★ 80 cited

High-SNR Asymptotics of Mutual Information for Discrete Constellations with Applications to BICM

Alex Alvarado, Fredrik Brannstrom, Erik Agrell +1

Asymptotic expressions of the mutual information between any discrete input and the corresponding output of the scalar additive white Gaussian noise channel are presented in the li…

math.NA2012★ 89 cited

Weak convergence for a spatial approximation of the nonlinear stochastic heat equation

Adam Andersson, Stig Larsson

We find the weak rate of convergence of the spatially semidiscrete finite element approximation of the nonlinear stochastic heat equation. Both multiplicative and additive noise is…

math.ST2012★ 1 cited

Optimal design of dilution experiments under volume constraints

Maryam Zolghadr, Sergei Zuyev

The paper develops methods to construct a one-stage optimal design of dilution experiments under the total available volume constraint typical for bio-medical applications. We cons…

hep-th2012★ 14 cited

Counterterms in Gravity in the Light-Front Formulation and a D=2 Conformal-like Symmetry in Gravity

Anders K. H. Bengtsson, Lars Brink, Sung-Soo Kim

In this paper we discuss gravity in the light-front formulation (light-cone gauge) and show how possible counterterms arise. We find that Poincare invariance is not enough to find…

math.NT2012★ 2 cited

Computing Genus 1 Jacobi Forms

Martin Raum

We develop an algorithm to compute Fourier expansions of vector valued modular for Weil representations. As an application, we compute explicit linear equivalences of special divis…

math.NA2012★ 3 cited

Computation of eigenvalues by numerical upscaling

Axel Malqvist, Daniel Peterseim

We present numerical upscaling techniques for a class of linear second-order self-adjoint elliptic partial differential operators (or their high-resolution finite element discretiz…

math.AP2012★ 1 cited

Square function and maximal function estimates for operators beyond divergence form equations

Andreas Rosén

We prove square function estimates in for general operators of the form , where are partially elliptic constant coefficient homogeneous first order self-…

physics.plasm-ph2012★ 15 cited

Turbulent transport of impurities and their effect on energy confinement

I. Pusztai, A. Mollen, T. Fulop +1

By presenting linear and nonlinear gyrokinetic studies, based on a balanced neutral beam injection deuterium discharge from the DIII-D tokamak, we demonstrate that impurities alter…

astro-ph.CO2012★ 107 cited

The SCUBA-2 Cosmology Legacy Survey: blank-field number counts of 450um-selected galaxies and their contribution to the cosmic infrared background

J. E. Geach, E. L. Chapin, K. E. K. Coppin +50

The first deep blank-field 450um map (1-sigma~1.3mJy) from the SCUBA-2 Cosmology Legacy Survey (S2CLS), conducted with the James Clerk Maxwell Telescope (JCMT) is presented. Our ma…

astro-ph.CO2012★ 149 cited

Evidence for CO shock excitation in NGC 6240 from Herschel SPIRE spectroscopy

R. Meijerink, L. E. Kristensen, A. Weiss +28

We present Herschel SPIRE FTS spectroscopy of the nearby luminous infrared galaxy NGC 6240. In total 20 lines are detected, including CO J=4-3 through J=13-12, 6 H2O rotational lin…

cond-mat.soft2012★ 16 cited

Using the uncertainty principle to design simple interactions for targeted self-assembly

Erik Edlund, Oskar Lindgren, Martin Nilsson Jacobi

We present a method that systematically simplifies isotropic interactions designed for targeted self-assembly. The uncertainty principle is used to show that an optimal simplificat…

nucl-th2012★ 15 cited

Sensitivity of three-body decays to the reactions mechanism and the initial structure by example of 6Be

L. V. Grigorenko, I. A. Egorova, R. J. Charity +1

The influence of the initial-state structure and the reaction mechanism on three-body decays is investigated by example of the 6Be continuum populated in neutron-knockout reactions…

math.CV2012

On the effective membership problem for polynomial ideals

Mats Andersson, Elizabeth Wulcan

We discuss the possibility of representing elements in polynomial ideals in $\C^N$ with optimal degree bounds. Classical theorems due to Macaulay and Max Noether say that such a re…

math.PR2012

Decomposition of supercritical linear-fractional branching processes

Serik Sagitov, Altynay Shaimerdenova

It is well known that a supercritical single-type Bienyamé-Galton-Watson process can be viewed as a decomposable branching process formed by two subtypes of particles: those having…

stat.ME2012

Excursion and contour uncertainty regions for latent Gaussian models

David Bolin, Finn Lindgren

An interesting statistical problem is to find regions where some studied process exceeds a certain level. Estimating such regions so that the probability for exceeding the level in…