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Boundary action of the H3+ model
V. Fateev, S. Ribault
We find the boundary action for Euclidean AdS2 D-branes in H3+. This action is consistent with the D-branes' symmetries and with the H3+-Liouville relation for disc correlators. It…
Branes in the 2D black hole
Sylvain Ribault, Volker Schomerus
We present a comprehensive analysis of branes in the Euclidean 2D black hole (cigar). In particular, exact boundary states and annulus amplitudes are provided for D0-branes which a…
Two AdS2 branes in the Euclidean AdS3
S. Ribault
We compute the density of open strings stretching between AdS2 branes in the Euclidean AdS3. This is done by solving the factorization constraint of a degenerate boundary field, an…
AdS2 D-branes in AdS3 spacetime
Sylvain Ribault
I review some recent progress in understanding the properties of AdS2 branes in AdS3. Different methods - classical string motion, Born-Infeld dynamics, boundary states - are evoca…