9 papers
Edge States and Entanglement Entropy
A. P. Balachandran, L. Chandar, Arshad Momen
It is known that gauge fields defined on manifolds with spatial boundaries support states localized at the boundaries. In this paper, we demonstrate how coarse-graining over these…
Edge States in Canonical Gravity
A. P. Balachandran, L. Chandar, Arshad Momen
It is well-known that gauge fields defined on manifolds with spatial boundaries support states localized at the boundary. In this talk, we show how similar states arise in canonica…
Edge states in Gravity and Black Hole Physics
A. P. Balachandran, L. Chandar, Arshad Momen
We show in the context of Einstein gravity that the removal of a spatial region leads to the appearance of an infinite set of observables and their associated edge states localized…
Edge States in Gauge Theories: Theory, Interpretations and Predictions
A. P. Balachandran, L. Chandar, E. Ercolessi
Gauge theories on manifolds with spatial boundaries are studied. It is shown that observables localized at the boundaries (edge observables) can occur in such models irrespective o…
Inequivalence of the Massive Vector Meson and Higgs Models on a Manifold with Boundary
L. Chandar, E. Ercolessi
The exact quantization of two models, the massive vector meson model and the Higgs model in the London limit, both describing massive photons, is presented. Even though naive argum…
Duality and the Fractional Quantum Hall Effect
A. P. Balachandran, L. Chandar, B. Sathiapalan
The edge states of a sample displaying the quantum Hall effect (QHE) can be described by a 1+1 dimensional (conformal) field theory of massless scalar fields taking values on a…