A bstract We consider topological defect lines (TDLs) in two-dimensional conformal field
theories. Generalizing and encompassing both global symmetries and Verlinde lines, TDLs …

A bstract We discuss consequences of the breaking of conformal symmetry by a flat or
spherical extended operator. We adapt the embedding formalism to the study of correlation …

We analyze the effect of decoherence, modeled by local quantum channels, on quantum
critical states and we find universal properties of the resulting mixed state's entanglement …

A bstract We explore some consequences of the crossing symmetry for defect conformal
field theories, focusing on codimension one defects like flat boundaries or interfaces. We …

We advance a correspondence between the topological defect operators in Liouville and
Toda conformal field theories—which we construct—and loop operators and domain wall …

Defects are a useful tool in the study of quantum field theories. This is illustrated in the
example of two-dimensional conformal field theories. We describe how defect lines and their …

A review of Boundary and defect conformal field theory: open problems and applications,
following a workshop held at Chicheley Hall, Buckinghamshire, UK, 7–8 Sept. 2017. We …

Defects are common in physical systems with boundaries, impurities or extensive
measurements. The interaction between bulk and defect can lead to rich physical …

A bstract The study of conformal boundary conditions for two-dimensional conformal field
theories (CFTs) has a long history, ranging from the description of impurities in one …

We consider topological defect lines (TDLs) in two-dimensional fermionic conformal field
theories (CFTs). Besides inheriting all the properties of TDLs in bosonic CFTs, TDLs in …