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arXiv · 1505.06767

Integrable open spin-chains in AdS3/CFT2 correspondences

Andrea Prinsloo·Vidas Regelskis·Alessandro Torrielli
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Abstract

We study integrable open boundary conditions for d(2,1;α)^2 and psu(1,1|2)^2 spin-chains. Magnon excitations of these open spin-chains are mapped to massive excitations of type IIB open superstrings ending on D-branes in the AdS_3 x S^3 x S^3 x S^1 and AdS_3 x S^3 x T^4 supergravity geometries with pure R-R flux. We derive reflection matrix solutions of the boundary Yang-Baxter equation which intertwine representations of a variety of boundary coideal subalgebras of the bulk Hopf superalgebra. Many of these integrable boundaries are matched to D1- and D5-brane maximal giant gravitons.

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Andrea Prinsloo, Vidas Regelskis, Alessandro Torrielli. 2015-12-17. Integrable open spin-chains in AdS3/CFT2 correspondences. https://doi.org/10.1103/physrevd.92.106006

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