A Study of the Bulk Phase Transitions of the Su(2) Lattice Gauge Theory with Mixed Action
نویسنده
چکیده
Using the finite size scaling theory, we re-examine the nature of the bulk phase transition in the fundamental-adjoint coupling plane of the SU(2) lattice gauge theory at βA = 1.25 where previous finite size scaling investigations of the deconfinement phase transition showed it to be of first order for temporal lattices with four sites. Our simulations on N lattices with N=6, 8, 10, 12 and 16 show an absence of a first order bulk phase transition. We find the discontinuity in the average plaquette to decrease approximately linearly with N . Correspondingly, the plaquette susceptibility grows a lot slower with the 4-volume of the lattice than expected from a first order bulk phase transition. On sabbatical leave from the Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India. E-Mail: [email protected] and [email protected]
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