861 citations · 8.4k across the 131 of their papers we have counts for
6 papers · 1 filter
Mutual information and the structure of entanglement in quantum field theory
Brian Swingle
I study the mutual information between spatial subsystems in a variety of scale invariant quantum field theories. While it is derived from the bare entanglement entropy, the mutual…
Renyi entropy, mutual information, and fluctuation properties of Fermi liquids
Brian Swingle
I compute the leading contribution to the ground state Renyi entropy for a region of linear size in a Fermi liquid. The result contains a universal boundary law violating…
Correlated Topological Insulators and the Fractional Magnetoelectric Effect
Brian Swingle, Maissam Barkeshli, John McGreevy +1
Topological insulators are characterized by the presence of gapless surface modes protected by time-reversal symmetry. In three space dimensions the magnetoelectric response is des…
Highly entangled quantum systems in 3+1 dimensions
Brian Swingle
Many systems exhibit boundary law scaling for entanglement entropy in more than one spatial dimension. Here I describe three systems in 3+1 dimensions that violate the boundary law…
Conformal Field Theory on the Fermi Surface
Brian Swingle
The Fermi surface may be usefully viewed as a collection of 1+1 dimensional chiral conformal field theories. This approach permits straightforward calculation of many anomalous gro…
Topological Properties of Tensor Network States From Their Local Gauge and Local Symmetry Structures
Brian Swingle, Xiao-Gang Wen
Tensor network states are capable of describing many-body systems with complex quantum entanglement, including systems with non-trivial topological order. In this paper, we study m…