Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck SocietyDE1.5k papers
- Leibniz University HannoverDE902 papers
- California Institute of TechnologyUS583 papers
- Centre National de la Recherche ScientifiqueFR534 papers
- University of BirminghamGB417 papers
- Pennsylvania State UniversityUS402 papers
- University of Maryland, College ParkUS398 papers
- Louisiana State UniversityUS394 papers
- University of Wisconsin–MilwaukeeUS390 papers
- Cardiff UniversityGB371 papers
- University of GlasgowGB367 papers
- Goddard Space Flight CenterUS340 papers
41 papers · 2 filters
Branes on Group Manifolds, Gluon Condensates, and twisted K-theory
Stefan Fredenhagen, Volker Schomerus
In this work we study the dynamics of branes on group manifolds G deep in the stringy regime. After giving a brief overview of the various branes that can be constructed within the…
Tachyon condensation and universality of DBI action
G. Arutyunov, S. Frolov, S. Theisen +1
We show that a low-energy action for massless fluctuations around a tachyonic soliton background representing a codimension one D-brane coincides with the Dirac-Born-Infeld action.…
Hidden Symmetries, Central Charges and All That
Bernard de Wit, Hermann Nicolai
In this review we discuss hidden symmetries of toroidal compactifications of eleven-dimensional supergravity. We recall alternative versions of this theory which exhibit traces of…
Discrete Lorentzian Quantum Gravity
R. Loll
Just as for non-abelian gauge theories at strong coupling, discrete lattice methods are a natural tool in the study of non-perturbative quantum gravity. They have to reflect the fa…
An overview of new supersymmetric gauge theories with 2-form gauge potentials
Friedemann Brandt
An overview of new 4d supersymmetric gauge theories with 2-form gauge potentials constructed by various authors during the past five years is given. The key role of three particula…
Non-perturbative 3d Lorentzian Quantum Gravity
J. Ambjorn, J. Jurkiewicz, R. Loll
We have recently introduced a discrete model of Lorentzian quantum gravity, given as a regularized non-perturbative state sum over simplicial Lorentzian space-times, each possessin…
From ADM to Brane-World charges
Sebastian Silva
We first recall a covariant formalism used to compute conserved charges in gauge invariant theories. We then study the case of gravity for two different boundary conditions, namely…
Perturbative and instanton corrections to the OPE of CPOs in N=4 SYM_4
G. Arutyunov, S. Frolov, A. C. Petkou
We study perturbative and instanton corrections to the Operator Product Expansion of the lowest weight Chiral Primary Operators of N=4 SYM_4. We confirm the recently observed non-r…
Brane-World charges
Sebastian Silva
As opposed to usual Einstein gravity in four dimensions, the Brane-World scenario allows the construction of a local density of gravitational energy (and also of momentum, of angul…
Maximal gauged supergravity in three dimensions
H. Nicolai, H. Samtleben
We construct maximally supersymmetric gauged N=16 supergravity in three dimensions, thereby obtaining an entirely new class of AdS supergravities. These models are not derivable fr…
Beyond Eikonal Scattering in M(atrix)-Theory
Robert Helling
We study the problem of more general kinematics for the finite N M(atrix)-Model than the simple straight line motion that has been used before. This is supposed to be related to mo…
Vertex Operators for the Supermembrane and Background Field Matrix Theory
Jan Plefka
We derive the vertex operators that are expected to govern the emission of the massless d=11 supermultiplet from the supermembrane in the light cone gauge. Our results immediately…
On Superpotentials for D-Branes in Gepner Models
Ilka Brunner, Volker Schomerus
A large class of D-branes in Calabi-Yau spaces can be constructed at the Gepner points using the techniques of boundary conformal field theory. In this note we develop methods that…
Diffeomorphisms, Anomalies and the Fefferman-Graham Ambiguity
A. Schwimmer, S. Theisen
Using the Weyl transfomations induced by diffeomorphisms we set up a cohomological problem for the Fefferman-Graham coefficients. The cohomologically nontrivial solutions remove th…
Bulk Witten Indices and the Number of Normalizable Ground States in Supersymmetric Quantum Mechanics of Orthogonal, Symplectic and Exceptional Groups
Matthias Staudacher
This note addresses the question of the number of normalizable vacuum states in supersymmetric quantum mechanics with sixteen supercharges and arbitrary semi-simple compact gauge g…
Charged Brane-World Black Holes
Andrew Chamblin, Harvey S. Reall, Hisa-aki Shinkai +1
We study charged brane-world black holes in the model of Randall and Sundrum in which our universe is viewed as a domain wall in asymptotically anti-de Sitter space. Such black hol…
Conformal and Quasiconformal Realizations of Exceptional Lie Groups
M. Gunaydin, K. Koepsell, H. Nicolai
We present a nonlinear realization of E_8 on a space of 57 dimensions, which is quasiconformal in the sense that it leaves invariant a suitably defined ``light cone'' in 57 dimensi…
Quantum corrections for (anti)-evaporating black hole
Maja Buric, Voja Radovanovic
In this paper we analyse the quantum correction for Schwarzschild black hole in the Unruh state in the framework of spherically symmetric gravity (SSG) model. SSG is a two-dimensio…
RR charges of D2-branes in the WZW model
Anton Alekseev, Volker Schomerus
We consider the contribution of the B-field into the RR charge of a spherical D2-brane. Extending a recent analysis of Taylor, we show that the boundary and bulk contributions do n…
Cubic couplings in D=6 N=4b supergravity on AdS_3\times S^3
G. Arutyunov, A. Pankiewicz, S. Theisen
We determine the AdS exchange diagrams needed for the computation of 4--point functions of chiral primary operators in the SCFT_2 dual to the D=6 N=4b supergravity on the AdS_3\tim…
Black holes in the brane world:Time symmetric initial data
Tetsuya Shiromizu, Masaru Shibata
We numerically construct time-symmetric initial data sets of a black hole in the Randall-Sundrum brane world model, assuming that the black hole is spherical on the brane. We find…
Nahm's equations, domain walls, and D-strings in
C. Bachas, J. Hoppe, B. Pioline
We consider the following two problems: classical domain walls in the mass deformation of the maximally supersymmetric Yang Mills theory, and D-strings as external magnetic…
An exceptional geometry for d=11 supergravity?
K. Koepsell, H. Nicolai, H. Samtleben
We analyze the algebraic constraints of the generalized vielbein in SO(1,2) x SO(16) invariant d=11 supergravity, and show that the bosonic degrees of freedom of d=11 supergravity,…
Reheating and dangerous relics in pre-big bang string cosmology
Alessandra Buonanno, Martin Lemoine, Keith A. Olive
We discuss the mechanism of reheating in pre-big bang string cosmology and we calculate the amount of moduli and gravitinos produced gravitationally and in scattering processes of…