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 …

Flux-and charge-quantization laws for higher gauge fields of Maxwell type--eg the common
electromagnetic field (the" A-field") but also the B-, RR-, and C-fields considered in string/M …

A bstract Renormalization Group domain walls are natural conformal interfaces between two
CFTs related by an RG flow. The RG domain wall gives an exact relation between the …

We consider conformal defects joining two conformal field theories along a line. We define
two new quantities associated to such defects in terms of expectation values of the stress …

In the quest for mathematical foundations of M-theory, the Hypothesis H, that fluxes are
quantized in Cohomotopy theory, implies, on flat but possibly singular spacetimes, that M …

We study the fusion of conformal interfaces in the c= 1 conformal field theory. We uncover an
elegant structure reminiscent of that of black holes in supersymmetric theories. The role of …

A bstract We investigate the RG domain wall between neighboring\({A} _2^{(p)}\) minimal
CFT models and establish the map between UV and IR fields (matrix of mixing coefficients) …

A bstract We consider perturbations of 2D CFTs by multiple relevant operators. The massive
phases of such perturbations can be labeled by conformal boundary conditions. Cardy's …

We establish that the relevant geometric data for the target space description of world sheet
topological defects are submanifolds–which we call bi-branes–in the product M1× M2 of the …

A bstract We explore the RG flow between neighboring minimal CFT models with W 3
symmetry. After computing several classes of OPE structure constants we were able to find …