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arXiv · hep-th/9509071

Exact Partition Function and Boundary State of 2-D Massive Ising Field Theory with Boundary Magnetic Field

R. Chatterjee
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Abstract

We compute the exact partition function, the universal ground state degeneracy and boundary state of the 2-D Ising model with boundary magnetic field at off-critical temperatures. The model has a domain that exhibits states localized near the boundaries. We study this domain of boundary bound state and derive exact expressions for the ``$g$ function'' and boundary state for all temperatures and boundary magnetic fields. In the massless limit we recover the boundary renormalization group flow between the conformally invariant free and fixed boundary conditions.

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R. Chatterjee. 1995-09-14. Exact Partition Function and Boundary State of 2-D Massive Ising Field Theory with Boundary Magnetic Field. https://doi.org/10.1016/0550-3213(96)00134-4

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