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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…
Two-cylinder entanglement entropy under a twist
Xiao Chen, William Witczak-Krempa, Thomas Faulkner +1
We study the von Neumann and Rényi entanglement entropy (EE) of scale-invariant theories defined on tori in 2+1 and 3+1 spacetime dimensions. We focus on spatial bi-partitions of t…
Entanglement entropy of the large Wilson-Fisher conformal field theory
Seth Whitsitt, William Witczak-Krempa, Subir Sachdev
We compute the entanglement entropy of the Wilson-Fisher conformal field theory (CFT) in 2+1 dimensions with O() symmetry in the limit of large for general entanglement geom…
Dynamical response near quantum critical points
Andrew Lucas, Snir Gazit, Daniel Podolsky +1
We study high frequency response functions, notably the optical conductivity, in the vicinity of quantum critical points (QCPs) by allowing for both detuning from the critical coup…
Universal corner entanglement of Dirac fermions and gapless bosons from the continuum to the lattice
Johannes Helmes, Lauren E. Hayward Sierens, Anushya Chandran +2
A quantum critical (QC) fluid exhibits universal subleading corrections to the area law of its entanglement entropies. In two dimensions when the partition involves a corner of ang…
Cornering gapless quantum states via their torus entanglement
William Witczak-Krempa, Lauren E. Hayward Sierens, Roger G. Melko
The entanglement entropy (EE) has emerged as an important window into the structure of complex quantum states of matter. We analyze the universal part of the EE for gapless systems…