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18 papers · 2 filters
Effectively Closed Infinite-Genus Surfaces and the String Coupling
Simon Davis
The class of effectively closed infinite-genus surfaces, defining the completion of the domain of string perturbation theory, can be included in the category , which is charac…
Compact U(1) gauge theories in 2+1 dimensions and the physics of low dimensional insulating materials
F. S. Nogueira, J. Smiseth, E. Smoergrav +1
Compact abelian gauge theories in dimensions arise often as an effective field-theoretic description of models of quantum insulators. In this paper we review some recent re…
Numerical results on the Non-commutative λϕ^4 Model
W. Bietenholz, F. Hofheinz, J. Nishimura
The UV/IR mixing in the λϕ^4 model on a non-commutative (NC) space leads to new predictions in perturbation theory, including Hartree-Fock type approximations. Among them there is…
Exact form factors for the scaling Z{N}-Ising and the affine A{N-1}-Toda quantum field theories
H. Babujian, M. Karowski
Previous results on form factors for the scaling Ising and the sinh-Gordon models are extended to general -Ising and affine -Toda quantum field theories. In particu…
Universal boundary reflection amplitudes
Olalla Castro-Alvaredo, Andreas Fring
For all affine Toda field theories we propose a new type of generic boundary bootstrap equations, which can be viewed as a very specific combination of elementary boundary bootstra…
On Boundary Perturbations in Liouville Theory and Brane Dynamics in Noncritical String Theories
Joerg Teschner
We study certain relevant boundary perturbations of Liouville theory and discuss implications of our results for the brane dynamics in noncritical string theories. Our results incl…