The Spectrum of the 2 + 1 Dimensional Gauge Ising Model
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چکیده
We present a high precision Monte Carlo study of the spectrum of the Z 2 gauge theory in 2 + 1 dimensions in the strong coupling phase. Using state of the art Monte Carlo techniques we are able to accurately determine up to three masses in a single channel. We compare our results with the strong coupling expansion for the lightest mass and with results for the universal ratio σ/m 2 determined for the φ 4-theory. Finally the whole spectrum is compared with that obtained from the Isgur-Paton flux tube model and the spectrum of the 2 + 1 dimensional SU (2) gauge theory. A remarkable agreement between the Ising and SU(2) spectra (except for the lowest mass state) is found.
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ar X iv : h ep - l at / 9 70 90 87 v 1 2 3 Se p 19 97 1 Spectrum of the gauge Ising model in three dimensions
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تاریخ انتشار 1996