Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR5k papers
- University of OxfordGB3.5k papers
- University of EdinburghGB3k papers
- University College LondonGB2.9k papers
- University of ManchesterGB2.9k papers
- Heidelberg UniversityDE2.5k papers
- University of MichiganUS2.4k papers
- University of BirminghamGB2.3k papers
- University of WarwickGB2.3k papers
- Aix-Marseille UniversitéFR2.3k papers
- Rutherford Appleton LaboratoryGB2.2k papers
- European Organization for Nuclear ResearchCH2.2k papers
724 papers · 1 filter
General CMB and Primordial Bispectrum Estimation I: Mode Expansion, Map-Making and Measures of f_NL
J. R. Fergusson, M. Liguori, E. P. S. Shellard
We present a detailed implementation of two bispectrum estimation methods which can be applied to general non-separable primordial and CMB bispectra. The method exploits bispectrum…
Varying Alpha
John D. Barrow
We review properties of cosmological theories for the variation of the fine structure 'constant'. We highlight some general features of the cosmological models that exist in these…
A conversion between utility and information
Pedro A. Ortega, Daniel A. Braun
Rewards typically express desirabilities or preferences over a set of alternatives. Here we propose that rewards can be defined for any probability distribution based on three desi…
A Bayesian Rule for Adaptive Control based on Causal Interventions
Pedro A. Ortega, Daniel A. Braun
Explaining adaptive behavior is a central problem in artificial intelligence research. Here we formalize adaptive agents as mixture distributions over sequences of inputs and outpu…
Nonparametric Bayesian Density Modeling with Gaussian Processes
Ryan Prescott Adams, Iain Murray, David J. C. MacKay
We present the Gaussian process density sampler (GPDS), an exchangeable generative model for use in nonparametric Bayesian density estimation. Samples drawn from the GPDS are consi…
Mesoscopic Fluctuations of Coulomb Drag of Composite Fermions
A. S. Price, A. K. Savchenko, D. A. Ritchie
We present the first experimental study of mesoscopic fluctuations of Coulomb drag in a system with two layers of composite fermions, which are seen when either the magnetic field…
On massive gravitons in 2+1 dimensions
Eric Bergshoeff, Olaf Hohm, Paul Townsend
The Fierz-Pauli (FP) free field theory for massive spin 2 particles can be extended, in a spacetime of (1+2) dimensions (3D), to a generally covariant parity-preserving interacting…
Broken Time Translation Symmetry as a model for Quantum State Reduction
Jasper van Wezel
The symmetries that govern the laws of nature can be spontaneously broken, enabling the occurrence of ordered states. Crystals arise from the breaking of translation symmetry, magn…
Stars quenching stars: how photoionization by local sources regulates gas cooling and galaxy formation
Sebastiano Cantalupo
Current models of galaxy formation lack an efficient and physically constrained mechanism to regulate star formation (SF) in low and intermediate mass galaxies. We argue that the m…
Relative K-stability of extremal metrics
Jacopo Stoppa, Gábor Székelyhidi
We show that if a polarised manifold admits an extremal metric then it is K-polystable relative to a maximal torus of automorphisms.
The effect of kinematic constraints on multi-tension string network evolution
A. Avgoustidis, E. J. Copeland
We consider the evolution of a network of strings in an expanding universe, allowing for the formation of junctions between strings of different tensions. By explicitly including,…
Probing star formation across cosmic time with absorption line systems
Brice Ménard, Vivienne Wild, Daniel Nestor +2
We present an empirical connection between cold gas in galactic halos and star formation. Using a sample of more than 8,500 MgII absorbers from SDSS quasar spectra, we report the d…
Comparison of Langevin and Markov channel noise models for neuronal signal generation
B. Sengupta, S. B. Laughlin, J. E. Niven
The stochastic opening and closing of voltage-gated ion channels produces noise in neurons. The effect of this noise on the neuronal performance has been modelled using either appr…
Curvature-driven coarsening in the two dimensional Potts model
Marcos P. O. Loureiro, Jeferson J. Arenzon, Leticia F. Cugliandolo +1
We study the geometric properties of polymixtures after a sudden quench in temperature. We mimic these systems with the -states Potts model on a square lattice with and without…
The distance to the cool T9 brown dwarf ULAS J003402.77-005206.7
R. L. Smart, H. R. A. Jones, M. G. Lattanzi +8
Aims. We demonstrate the feasibility of determining parallaxes for nearby objects with theWide Field Camera on the United Kingdom Infrared Telescope (UKIRT) using the UKIRT Infrare…
Fermi liquid behaviour in an underdoped high Tc superconductor
Suchitra E. Sebastian, N. Harrison, M. M. Altarawneh +4
We use magnetic quantum oscillations in the underdoped high Tc superconductor YBa_2Cu_3O_(6+x) (x=0.56) measured over a broad range of temperatures 100 mK<T<18 K to extract the for…
Water structuring and collagen adsorption at hydrophilic and hydrophobic silicon surfaces
Daniel J. Cole, Mike C. Payne, Lucio Colombi Ciacchi
The adsorption of a collagen fragment on both a hydrophobic, hydrogen-terminated and a hydrophilic, natively oxidised Si surface is investigated using all-atom molecular dynamics.…
D0-D6 states counting and GW invariants
Jacopo Stoppa
We describe a correspondence between the virtual number of torsion free sheaves locally free in codimension 3 on a Calabi-Yau 3-fold and the Gromov-Witten invariants counting ratio…
Determination of the S-wave pi pi scattering lengths from a study of K+- -> pi+- pi0 pi0 decays
2 Collaboration
We report the results from a study of the full sample of ~ 6.031 10^7 K+- -> pi+- pi0 pi0 decays recorded by the NA48/2 experiment at the CERN SPS. As first observed in this experi…
Rigidity of configurations of balls and points in the -sphere
Edward Crane, Ian Short
We answer two questions of Beardon and Minda that arose from their study of the conformal symmetries of circular regions in the complex plane. We show that a configuration of close…
Direct and indirect electrocaloric measurements using multilayer capacitors
S. Kar-Narayan, N. D. Mathur
We report the discovery of serendipitous electrocaloric effects in commercial multilayer capacitors based on ferroelectric BaTiO3. Direct thermometry records ~0.5 K changes due to…
The GALEX Arecibo SDSS Survey. I. Gas Fraction Scaling Relations of Massive Galaxies and First Data Release
Barbara Catinella, David Schiminovich, Guinevere Kauffmann +23
We introduce the GALEX Arecibo SDSS Survey (GASS), an on-going large program that is gathering high quality HI-line spectra using the Arecibo radio telescope for an unbiased sample…
Parallactic Motion for Companion Discovery: An M-Dwarf Orbiting Alcor
Neil Zimmerman, Ben R. Oppenheimer, Sasha Hinkley +16
The A5V star Alcor has an M3-M4 dwarf companion, as evidenced by a novel astrometric technique. Imaging spectroscopy combined with adaptive optics coronagraphy allowed for the dete…
Faint extended Lyalpha emission due to star formation at the centre of high-column density QSO absorption systems
Luke A. Barnes, Martin G. Haehnelt
We use detailed Lyalpha radiative transfer calculations to further test the claim of Rauch et al. (2008) that they have detected spatially extended faint Lyalpha emission from the…