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177 papers · 1 filter

gr-qc2014★ 3 cited

Free-flight experiments in LISA Pathfinder

M. Armano, H. Audley, G. Auger +89

The LISA Pathfinder mission will demonstrate the technology of drag-free test masses for use as inertial references in future space-based gravitational wave detectors. To accomplis…

hep-th2014

The Lorentz Anomaly via Operator Product Expansion

Stefan Fredenhagen, Jens Hoppe, Mariusz Hynek

The emergence of a critical dimension is one of the most striking features of string theory. One way to obtain it is by demanding closure of the Lorentz algebra in the light-cone g…

astro-ph.GA2014

Identifying the first generation of radio powerful AGN in the Universe with the SKA

Jose Afonso, Jordi Casanellas, Isabella Prandoni +4

One of the most challenging and exciting subjects in modern astrophysics is that of galaxy formation at the epoch of reionisation. The SKA, with its revolutionary capabilities in t…

gr-qc2014★ 8 cited

Wave maps on a wormhole

Piotr Bizoń, Michał Kahl

We consider equivariant wave maps from a wormhole spacetime into the three-sphere. This toy-model is designed for gaining insight into the dissipation-by-dispersion phenomena, in p…

gr-qc2014★ 3 cited

Numerical Brill-Lindquist initial data with a Schwarzschildean end at spatial infinity

Georgios Doulis, Oliver Rinne

We construct numerically time-symmetric initial data that are Schwarzschildean at spatial infinity and Brill-Lindquist in the interior. The transition between these two data sets t…

hep-th2014★ 32 cited

Integrable properties of sigma-models with non-symmetric target spaces

Dmitri Bykov

It is well-known that sigma-models with symmetric target spaces are classically integrable. At the example of the model with target space the flag manifold U(3)/U(1)^3 -- a non-sym…

gr-qc2014★ 4 cited

A new tensorial conservation law for Maxwell fields on the Kerr background

Lars Andersson, Thomas Bäckdahl, Pieter Blue

A new, conserved, symmetric tensor field for a source-free Maxwell test field on a four-dimensional spacetime with a conformal Killing-Yano tensor, satisfying a certain compatibili…

hep-th2014★ 4 cited

Grassmannian Integrals as Matrix Models for Non-Compact Yangian Invariants

Nils Kanning, Yumi Ko, Matthias Staudacher

In the past years, there have been tremendous advances in the field of planar N=4 super Yang-Mills scattering amplitudes. At tree-level they were formulated as Grassmannian integra…

hep-th2014★ 51 cited

Dimensional flow in discrete quantum geometries

Gianluca Calcagni, Daniele Oriti, Johannes Thürigen

In various theories of quantum gravity, one observes a change in the spectral dimension from the topological spatial dimension at large length scales to some smaller value at s…

astro-ph.HE2014★ 74 cited

Searches for continuous gravitational waves from nine young supernova remnants

J. Aasi, B. P. Abbott, R. Abbott +887

We describe directed searches for continuous gravitational waves in data from the sixth LIGO science data run. The targets were nine young supernova remnants not associated with pu…

hep-th2014★ 195 cited

Elliptic multiple zeta values and one-loop superstring amplitudes

Johannes Broedel, Carlos R. Mafra, Nils Matthes +1

We investigate iterated integrals on an elliptic curve, which are a natural genus-one generalization of multiple polylogarithms. These iterated integrals coincide with the multiple…

astro-ph.CO2014★ 32 cited

Cosmic Expansion in Extended Quasidilaton Massive Gravity

Tina Kahniashvili, Arjun Kar, George Lavrelashvili +3

Quasidilaton massive gravity offers a physically well-defined gravitational theory with non-zero graviton mass. We present the full set of dynamical equations governing the expansi…

gr-qc2014★ 4 cited

Properties of an affine transport equation and its holonomy

Justin Vines, David A. Nichols

An affine transport equation was used recently to study properties of angular momentum and gravitational-wave memory effects in general relativity. In this paper, we investigate lo…

hep-th2014★ 23 cited

Standard Model Fermions and N=8 supergravity

Krzysztof A. Meissner, Hermann Nicolai

In a scheme originally proposed by M. Gell-Mann, and subsequently shown to be realized at the SU(3)xU(1) stationary point of maximal gauged SO(8) supergravity by N. Warner and one…

hep-th2014★ 2 cited

Filtrations in Dyson-Schwinger equations: next-to^{j} -leading log expansions systematically

Olaf Krueger, Dirk Kreimer

Dyson-Schwinger equations determine the Green functions in quantum field theory. Their solutions are triangular series in a coupling constant and an external scale p…

gr-qc2014★ 55 cited

A directed search for gravitational waves from Scorpius X-1 with initial LIGO

The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +891

We present results of a search for continuously-emitted gravitational radiation, directed at the brightest low-mass X-ray binary, Scorpius X-1. Our semi-coherent analysis covers 10…

hep-th2014★ 12 cited

T-duality, Non-geometry and Lie Algebroids in Heterotic Double Field Theory

Ralph Blumenhagen, Rui Sun

A number of issues in heterotic double field theory are studied. This includes the analysis of the T-dual configurations of a flat constant gauge flux background, which turn out to…

gr-qc2014★ 146 cited

Descope of the ALIA mission

Xuefei Gong, Yun-Kau Lau, Shengnian Xu +24

The present work reports on a feasibility study commissioned by the Chinese Academy of Sciences of China to explore various possible mission options to detect gravitational waves i…

physics.ins-det2014★ 3 cited

Towards a FPGA-controlled deep phase modulation interferometer

M. Terán, V. Martín, L. l. Gesa +9

Deep phase modulation interferometry was proposed as a method to enhance homodyne interferometers to work over many fringes. In this scheme, a sinusoidal phase modulation is applie…

astro-ph.CO2014★ 6 cited

The Sun and stars: Giving light to dark matter

Jordi Casanellas, Ilídio Lopes

During the last century, with the development of modern physics in such diverse fields as thermodynamics, statistical physics, and nuclear and particle physics, the basic principle…

physics.ins-det2014★ 22 cited

Status of GEO 600

Katherine L. Dooley

The German-British laser-interferometric gravitational wave detector GEO 600 is in its 13th year of operation since its first lock in 2001. After participating in science runs with…

physics.ins-det2014★ 13 cited

Status of advanced ground-based laser interferometers for gravitational-wave detection

Katherine L Dooley, Tomotada Akutsu, Sheila Dwyer +1

Ground-based laser interferometers for gravitational-wave (GW) detection were first constructed starting 20 years ago and as of 2010 collection of several years' worth of science d…

gr-qc2014★ 19 cited

Extreme mass ratio inspirals: perspectives for their detection

Stanislav Babak, Jonathan R. Gair, Robert H. Cole

In this article we consider prospects for detecting extreme mass ratio inspirals (EMRIs) using gravitational wave (GW) observations by a future space borne interferometric observat…

gr-qc2014★ 1.3k cited

Characterization of the LIGO detectors during their sixth science run

The LIGO Scientific Collaboration, The Virgo Collaboration, J. Aasi +867

In 2009-2010, the Laser Interferometer Gravitational-wave Observa- tory (LIGO) operated together with international partners Virgo and GEO600 as a network to search for gravitation…