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
156 papers · 1 filter
String Solitons
M. J. Duff, Ramzi R. Khuri, J. X. Lu
We review the status of solitons in superstring theory, with a view to understanding the strong coupling regime. These {\it solitonic} solutions are non-singular field configuratio…
Robust stochastic parsing using the inside-outside algorithm
Briscoe, Ted, Waegner +1
The paper describes a parser of sequences of (English) part-of-speech labels which utilises a probabilistic grammar trained using the inside-outside algorithm. The initial (meta)gr…
Radiation constraints from cosmic strings
R. A. Battye, E. P. S. Shellard
We show that it is possible to evolve a network of global strings numerically including the effects of radiative backreaction, using the renormalised equations for the Kalb-Ramond…
Monopole Annihilation and Highest Energy Cosmic Rays
P. Bhattacharjee, G. Sigl
Cosmic rays with energies exceeding $10^{20}\eV$ have been detected. The origin of these highest energy cosmic rays remains unknown. Established astrophysical acceleration mechanis…
Particle Physics Models, Topological Defects and Electroweak Baryogenesis
M. Trodden, A-C. Davis, R. Brandenberger
We demonstrate the viability of electroweak baryogenesis scenarios in which the necessary departure from equilibrium is realized by the evolution of a network of topological defect…
Spin-Up/Spin-Down of Magnetized Stars with Accretion Disks and Outflows
R. V. E. Lovelace, M. M. Romanova, G. S. Bisnovatyi-Kogan
An investigation is made of disk accretion of matter onto a rotating star with an aligned dipole magnetic field. A new aspect of this work is that when the angular velocity of the…
Galaxies, Human Eyes and Artificial Neural Networks
O. Lahav, A. Naim, R. J. Buta +8
Quantitative morphological classification of galaxies is important for understanding the origin of type frequency and correlations with environment. But galaxy morphological classi…
Generalised Point Interactions for the Radial Schrodinger Equation via Unitary Dilations
C. J. Fewster
We present an inverse scattering construction of generalised point interactions (GPI) -- point-like objects with non-trivial scattering behaviour. The construction is developed for…
2d Gravity Coupled to Topological Minimal Models
A. Mukherjee
We discuss the properties of the large phase space of the genus-0 topological minimal model coupled to 2d topological gravity. The minimal action is perturbed by adding…
Hilbert Space Representation of the Minimal Length Uncertainty Relation
A. Kempf, G. Mangano, R. B. Mann
The existence of a minimal observable length has long been suggested, in quantum gravity, as well as in string theory. In this context a generalized uncertainty relation has been d…
Differential Geometry on the Space of Connections via Graphs and Projective Limits
Abhay Ashtekar, Jerzy Lewandowski
In a quantum mechanical treatment of gauge theories (including general relativity), one is led to consider a certain completion, $\agb$, of the space $\ag$ of gauge equivalent conn…
Topological Massive Sigma Models
N. D. Lambert
In this paper we construct topological sigma models which include a potential and are related to twisted massive supersymmetric sigma models. Contrary to a previous construction th…
On the Consistent Histories Approach to Quantum Mechanics
Fay Dowker, Adrian Kent
We review the consistent histories formulations of quantum mechanics developed by Griffiths, Omnès and Gell-Mann and Hartle, and describe the classification of consistent sets. We…
Entropy in the RST Model
J. D. Hayward
The RST Model is given boundary term and Z-field so that it is well-posed and local. The Euclidean method is described for general theory and used to calculate the RST intrinsic en…
Supersymmetric Models with a Gauge Singlet and Non-Universal Soft Terms from Orbifold String Theory
Ph. Brax, U. Ellwanger, C. A. Savoy
The particle spectrum of the supersymmetric extension of the standard model with a gauge singlet is studied. Soft supersymmetry breaking terms are explicitly chosen to be non-unive…
Black holes, cosmological singularities and change of signature
Marcus Kriele, Jerome Martin
There exists a widespread belief that signature type change could be used to avoid spacetime singularities. We show that signature change cannot be utilised to this end unless the…
The Morphological Evolution of Field Galaxies
Richard S Ellis
I review two observational programs which, together, promise to unravel the detailed astrophysical evolution of normal field galaxies over the last 5-7 Gyr. Systematic ground-based…
Quantum mass corrections for affine Toda solitons
N. J. MacKay, G. M. T. Watts
We calculate the first quantum corrections to the masses of solitons in imaginary-coupling affine Toda theories using the semi-classical method of Dashen, Hasslacher and Neveu. The…
Zero Modes on Linked Strings
Jaume Garriga, Tanmay Vachaspati
We study linked loops of string in the presence of bosonic condensates and fermionic zero modes on the strings. We find that the strings necessarily carry a current if the bosons h…
Observation and superselection in quantum mechanics
N. P. Landsman
We attempt to clarify the main conceptual issues in approaches to `objectification' or `measurement' in quantum mechanics which are based on superselection rules. Such approaches v…
Exclusive vector meson production at HERA
A Donnachie, P V Landshoff
Exclusive vector meson production from real and virtual photons is, for the most part, described well by soft pomeron exchange. However, there are some unsolved normalisation probl…
Canonical Demon Monte Carlo Renormalization Group
M. Hasenbusch, K. Pinn, C. Wieczerkowski
We describe a method to compute renormalized coupling constants in a Monte Carlo renormalization group calculation. It can be used, e.g., for lattice spin or gauge models. The basi…
Rough Interfaces Beyond the Gaussian Approximation
M. Caselle, F. Gliozzi, R. Fiore +3
We compare predictions of the Capillary Wave Model with Monte Carlo results for the energy gap and the interface energy of the 3D Ising model in the scaling region. Our study revea…
Electroweak Strings, Zero Modes and Baryon Number
Tanmay Vachaspati
The Dirac equations for leptons and quarks in the background of an electroweak string have zero mode solutions. If two loops of electroweak string are linked, the zero modes on…