27 citations · 97 across the 13 of their papers we have counts for
5 papers · 1 filter
Bosonization of 2+1 dimensional fermions on the surface of topological insulators
Andrea Cappelli, Lorenzo Maffi, Riccardo Villa
Three-dimensional topological insulators can be described by an effective field theory involving two `hydrodynamic' Abelian gauge fields. The action contains a bulk topological BF…
W-infinity Symmetry in the Quantum Hall Effect Beyond the Edge
Andrea Cappelli, Lorenzo Maffi
The description of chiral quantum incompressible fluids by the W-infinity symmetry can be extended from the edge, where it encompasses the conformal field theory approach, to the n…
Quantization of a Self-dual Conformal Theory in (2+1) Dimensions
Francesco Andreucci, Andrea Cappelli, Lorenzo Maffi
Compact nonlocal Abelian gauge theory in (2+1) dimensions, also known as loop model, is a massless theory with a critical line that is explicitly covariant under duality transforma…
Critical Ising Model in Varying Dimension by Conformal Bootstrap
Andrea Cappelli, Lorenzo Maffi, Satoshi Okuda
The single-correlator conformal bootstrap is solved numerically for several values of dimension 4>d>2 using the available SDPB and Extremal Functional methods. Critical exponents a…
Bulk-Boundary Correspondence in the Quantum Hall Effect
Andrea Cappelli, Lorenzo Maffi
We present a detailed microscopic study of edge excitations for n filled Landau levels. We show that the higher-level wavefunctions possess a non-trivial radial dependence that sho…