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Conformal field theories in a magnetic field
Rufus Boyack, Luca V. Delacrétaz, Éric Dupuis +1
We study the properties of 2+1d conformal field theories (CFTs) in a background magnetic field. Using generalized particle-vortex duality, we argue that in many cases of interest t…
Evidence for 3d bosonization from monopole operators
Shai M. Chester, Éric Dupuis, William Witczak-Krempa
We give evidence for 3d bosonization in Conformal Field Theories (CFTs) by computing monopole operator scaling dimensions in 2+1 dimensional quantum electrodynamics (QED3) with Che…
Generalizing the entanglement entropy of singular regions in conformal field theories
Pablo Bueno, Horacio Casini, William Witczak-Krempa
We study the structure of divergences and universal terms of the entanglement and Rényi entropies for singular regions. First, we show that for -dimensional free conformal f…
Quantum critical response: from conformal perturbation theory to holography
Andrew Lucas, Todd Sierens, William Witczak-Krempa
We discuss dynamical response functions near quantum critical points, allowing for both a finite temperature and detuning by a relevant operator. When the quantum critical point is…
Holographic torus entanglement and its RG flow
Pablo Bueno, William Witczak-Krempa
We study the universal contributions to the entanglement entropy (EE) of 2+1d and 3+1d holographic conformal field theories (CFTs) on topologically non-trivial manifolds, focusing…
A Holographic Model for Quantum Critical Responses
Robert C. Myers, Todd Sierens, William Witczak-Krempa
We analyze the dynamical response functions of strongly interacting quantum critical states described by conformal field theories (CFTs). We construct a self-consistent holographic…
Universal corner entanglement from twist operators
Pablo Bueno, Robert C. Myers, William Witczak-Krempa
The entanglement entropy in three-dimensional conformal field theories (CFTs) receives a logarithmic contribution characterized by a regulator-independent function when the…
Universality of corner entanglement in conformal field theories
Pablo Bueno, Robert C. Myers, William Witczak-Krempa
We study the contribution to the entanglement entropy of (2+1)-dimensional conformal field theories coming from a sharp corner in the entangling surface. This contribution is encod…