We review two important non-perturbative approaches for extracting the physics of low-
dimensional strongly correlated quantum systems. Firstly, we start by providing a …

An overview of the random network model invented by Chalker and Coddington, and its
generalizations, is provided. After a short introduction into the physics of the Integer …

Critical phenomena arise in a wide variety of physical systems. Classi cal examples are the
liquid-vapour critical point or the paramagnetic ferromagnetic transition. Further examples …

Motivated by recent works of Sen [hep-th/0203211, hep-th/0203265] and Gibbons [hep-
th/0204008], we study the evolution of a flat and homogeneous universe dominated by …

We perform a detailed analysis of several μ–τ lepton flavour violating (LFV) processes,
namely τ→ μX (X= γ, e+ e−, μ+ μ−, ρ, π, η, η′), Z→ μτ and Higgs boson decays into μτ. First …

We compute the emission of closed string radiation from homogeneous rolling tachyons. For
an unstable decaying Dp-brane the radiated energy is infinite to leading order for p⩽ 2 and …

These are notes of my lectures held at the first School & Workshop on Logarithmic
Conformal Field Theory and its Applications, September 2001 in Tehran, Iran. These notes …

We study two-dimensional conformal field theories generated from a “symplectic fermion”—a
free two-component fermion field of spin one—and construct the maximal local …

A comprehensive introduction to logarithmic conformal field theory, using an algebraic point
of view, is given. A number of examples are explained in detail, including the c=-2 triplet …

We analyse the fusion of representations of the triplet algebra, the maximally extended
symmetry algebra of the Virasoro algebra at c=− 2. It is shown that there exists a finite …