Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1992-05-27
Nucl.Phys. B388 (1992) 648-670
Physics
High Energy Physics
High Energy Physics - Theory
21 pages, 11 figures. This revised manuscript is identical to the final published version (Nuclear Physics B, to appear). Asid
Scientific paper
10.1016/0550-3213(92)90558-S
It has long been argued that the continuum limit of the 3D Ising model is equivalent to a string theory. Unfortunately, in the usual starting point for this equivalence -- a certain lattice theory of surfaces -- it is not at all obvious how to take the continuum limit. In this note, I reformulate the lattice theory of surfaces in a fashion such that the continuum limit is straightforward. I go on to discuss how this new formulation may overcome some fundamental objections to the notion that the Ising model is equivalent to a string theory. In an appendix, I also discuss some aspects of fermion doubling, and the lattice fermion formulation of the 2D Ising model.
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