Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact Partition Function and Boundary State of 2-D Massive Ising Field
  Theory with Boundary Magnetic Field   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.

10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat