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Spectral Geometry of Heterotic Compactifications
David D. Song, Richard J. Szabo
The structure of heterotic string target space compactifications is studied using the formalism of the noncommutative geometry associated with lattice vertex operator algebras. The…
D-branes and the Non-commutative Structure of Quantum Spacetime
Nick E. Mavromatos, Richard J. Szabo
A worldsheet approach to the study of non-abelian D-particle dynamics is presented based on viewing matrix-valued D-brane coordinate fields as coupling constants of a deformed sigm…
Induced Dilaton in Topologically Massive Quantum Field Theory
I. I. Kogan, A. Momen, R. J. Szabo
We consider the conformally-invariant coupling of topologically massive gravity to a dynamical massless scalar field theory on a three-manifold with boundary. We show that, in the…
Matrix D-brane Dynamics, Logarithmic Operators and Quantization of Noncommutative Spacetime
Nick E. Mavromatos, Richard J. Szabo
We describe the structure of the moduli space of -model couplings for the worldsheet description of a system of D-particles, in the case that the couplings are represented b…
Spacetime Quantization from Non-abelian D-particle Dynamics
Nick E. Mavromatos, Richard J. Szabo
We describe the short-distance properties of the spacetime of a system of D-particles by viewing their matrix-valued coordinates as coupling constants of a deformed worldsheet -…
String Geometry and the Noncommutative Torus
G. Landi, F. Lizzi, R. J. Szabo
We construct a new gauge theory on a pair of d-dimensional noncommutative tori. The latter comes from an intimate relationship between the noncommutative geometry associated with a…