Holographic description of interfaces in 2-d CFTs - Physics

Holographic duals of 2d interface theories
M. Gutperle UCLA
Many boundaries
annulus can be generalized to a surface with arbitrary number
of boundaries, using the doubling trick and the machinery of
higher loop string perturbation theory
boundaries are
fixed points of
Involution I
Σ = ¯Σ/I
I(A i )=A i
I(B i )=−B i
Harmonic function expressed in terms of holomorphic differential,
Prime forms etc. Non-contractible cycles support 3 brane charge