Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.8k papers
- Heidelberg UniversityDE2.1k papers
- University of OxfordGB2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2k papers
- European Organization for Nuclear ResearchCH2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.9k papers
- University of EdinburghGB1.9k papers
- The University of TokyoJP1.9k papers
- Ludwig-Maximilians-Universität MünchenDE1.9k papers
- University of ManchesterGB1.9k papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL1.8k papers
25 papers · 1 filter
Arbitrary Spacetimes from the SL(2,R)/U(1) Coset Model
N. Mohammedi
We show that the gauged SL(2,R) WZWN model yields arbitrary spacetimes in two dimensions. The c = 1 matter field and the black hole singularity are just two particular cases in the…
Automorphisms of W-Algebras and Extended Rational Conformal Field Theories
A. Honecker
Many extended conformal algebras with one generator in addition to the Virasoro field as well as Casimir algebras have non-trivial outer automorphisms which enables one to impose `…
Fusion Algebras Induced by Representations of the Modular Group
W. Eholzer
Using the representation theory of the subgroups SL_2(Z_p) of the modular group we investigate the induced fusion algebras in some simple examples. Only some of these representatio…
Neutrino production through hadronic cascades in AGN accretion disks
L. Nellen, K. Mannheim, P. L. Biermann
We consider the production of neutrinos in active galactic nuclei (AGN) through hadronic cascades. The initial, high energy nucleons are accelerated in a source above the accretion…
Dilogarithm Identities in Conformal Field Theory
W. Nahm, A. Recknagel, M. Terhoeven
Dilogarithm identities for the central charges and conformal dimensions exist for at least large classes of rational conformally invariant quantum field theories in two dimensions.…
Discrete Symmetry, Non-Commutative Geometry and Gravity
N. Mohammedi
We describe the geomety of a set of scalar fields coupled to gravity. We consider the formalism of a differential Z_2-graded algebra of matrices whose elements are diff…
The Algebra of Differential Operators on the Circle and
J. M. Figueroa-O'Farrill, E. Ramos
Radul has recently introduced a map from the Lie algebra of differential operators on the circle to . In this note we extend this map to , a recently introduced…
Multi-particle structure in the Z_n-chiral Potts models
G. von Gehlen, A. Honecker
We calculate the lowest translationally invariant levels of the Z_3- and Z_4-symmetrical chiral Potts quantum chains, using numerical diagonalization of the hamiltonian for N <= 12…
On the Linearized Artin Braid Representation
F. Constantinescu, F. Toppan
We linearize the Artin representation of the braid group given by (right) automorphisms of a free group providing a linear faithful representation of the braid group. This result i…
Virasoro Representations on Fusion Graphs
J. Kellendonk, A. Recknagel
For any non-unitary model with central charge c(2,q) the path spaces associated to a certain fusion graph are isomorphic to the irreducible Virasoro highest weight modules.
Representations of Extended Superconformal Algebras with Two Generators
W. Eholzer, A. Honecker, R. Huebel
In this paper we consider the representation theory of N=1 Super-W-algebras with two generators for conformal dimension of the additional superprimary field between two and six. In…
A geometrical interpretation of classical W-transformations
J. M. Figueroa-O'Farrill, E. Ramos, S. Stanciu
We give a simple geometrical interpretation of classical $\W$-transformations as deformations of constant energy surfaces by canonical transformations on a two-dimensional phase sp…
A Note on the Algebraic Evaluation of Correlators in Local Chiral Conformal Field Theory
A. Honecker
We comment on a program designed for the study of local chiral algebras and their representations in 2D conformal field theory. Based on the algebraic approach described by W. Nahm…
N=2 supersymmetric W-algebras
Ralph Blumenhagen
We investigate extensions of the N=2 super Virasoro algebra by one additional super primary field and its charge conjugate. Using a supersymmetric covariant formalism we construct…
Superconformal Affine Liouville Theory
F. Toppan, Y. -Z. Zhang
We present a superconformally invariant and integrable model based on the twisted affine Kac-Moody superalgebra which is the supersymmetrization of the purel…
The Topography of $\W_\infty$-Type Algebras
J. M. Figueroa-O'Farrill, J. Mas, E. Ramos
We chart out the landscape of $\Winfty$-type algebras using $\Wkpq$---a recently discovered one-parameter deformation of $\W_{\rm KP}$. We relate all hitherto known $\Winfty$-type…
New N=1 Extended Superconformal Algebras with Two and Three Generators
R. Blumenhagen, W. Eholzer, A. Honecker +1
In this paper we consider extensions of the super Virasoro algebra by one and two super primary fields. Using a non-explicitly covariant approach we compute all SW-algebras with on…
Ward Identities for Affine-Virasoro Correlators
M. B. Halpern, N. A. Obers
Generalizing the Knizhnik-Zamolodchikov equations, we derive a hierarchy of non-linear Ward identities for affine-Virasoro correlators. The hierarchy follows from null states of th…
A twistor formulation of the heterotic D=10 superstring with manifest (8,0) worldsheet supersymmetry
F. Delduc, A. Galperin, P. Howe +1
We propose a new formulation of the heterotic Green-Schwarz superstring whose worldsheet is a superspace with two even and eight odd coordinates. The action is manifestly in…
W-Algebras, New Rational Models and Completeness of the c = 1 Classification
Michael Flohr
Two series of W-algebras with two generators are constructed from chiral vertex operators of a free field representation. If , there exists a W(2,3k) algebra for k in…
On the two-boson picture of the KP hierarchy
J. M. Figueroa-O'Farrill, J. Mas, E. Ramos
A two-boson realization of the second hamiltonian structure for the KP hierarchy has recently appeared in the literature. Furthermore, it has been claimed that this is also a reali…
A One-Parameter Family of Hamiltonian Structures for the KP Hierarchy and a Continuous Deformation of the Nonlinear $\W_{\rm KP}$ Algebra
J. M. Figueroa-O'Farrill, J. Mas, E. Ramos
The KP hierarchy is hamiltonian relative to a one-parameter family of Poisson structures obtained from a generalized Adler map in the space of formal pseudodifferential symbols wit…
Twistor-like superstrings with D = 3, 4, 6 target-superspace and N = (1,0), (2,0), (4,0) world-sheet supersymmetry
F. Delduc, E. Ivanov, E. Sokatchev
We construct a manifestly world-sheet supersymmetric twistor-like formulation of the Green-Schwarz superstring, using the principle of double (target-space and worl…
A twistor-like D=10 superparticle action with manifest N=8 world-line supersymmetry
A. Galperin, E. Sokatchev
We propose a new formulation of the Brink-Schwarz superparticle which is manifestly invariant under both the target-space super-Poincaré group and the world-line local …