中文

Integrable Open Spin Chains in Defect Conformal Field Theory

高能物理 - 理论 2009-11-10 v2

摘要

We demonstrate that the one-loop dilatation generator for the scalar sector of a certain perturbation of N=4 Super Yang-Mills with fundamentals is the Hamiltonian of an integrable spin chain with open boundary conditions. The theory is a supersymmetric defect conformal field theory (dCFT) with the fundamentals in hypermultiplets confined to a codimension one defect. We obtain a K-matrix satisfying a suitably generalized form of the boundary Yang-Baxter equation, study the Bethe ansatz equations and demonstrate how Dirichlet and Neumann boundary conditions arise in field theory, and match to existing results in the plane wave limit.

关键词

引用

@article{arxiv.hep-th/0401041,
  title  = {Integrable Open Spin Chains in Defect Conformal Field Theory},
  author = {Oliver DeWolfe and Nelia Mann},
  journal= {arXiv preprint arXiv:hep-th/0401041},
  year   = {2009}
}

备注

26 pages, LaTeX. v2: references added, typos corrected