ar X iv : h ep - l at / 9 21 20 04 v 2 1 6 D ec 1 99 2 1 Magnetic Monopoles in non - compact QED - is there a Phase Transition ?
نویسنده
چکیده
The existence of the monopole condensation transition reported by Koci´c et al. [1] in non-compact, quenched QED is tested. No phase transition is found. This shows that divergence of the 'monopole susceptibility' introduced by Hands and Wensley [2] is not a reliable indicator of second order phase transitions. In view of these results I discuss claims [3] that the chiral phase transition seen in QED with fermions [3,4] is a lattice artefact driven by monopole condensation.
منابع مشابه
ar X iv : h ep - l at / 9 30 30 01 v 1 4 M ar 1 99 3 Is the Chiral Phase Transition in Non - Compact Lattice QED Driven by Monopole Condensation ?
We investigate the recent conjecture that the chiral phase transition in noncompact lattice QED is driven by monopole condensation. The comparison of analytic and numerical results shows that we have a quantitative understanding of monopoles in both the quenched and dynamical cases. We can rule out monopole condensation.
متن کاملar X iv : h ep - l at / 9 60 70 64 v 1 2 6 Ju l 1 99 6
We present results from magnetic monopoles in SU (2) lattice gauge theory at finite temperature. The lattices are 16 3 × N t , for N t = 4, 6, 8, 12, at β = 2.5115. Quantities discussed are: the spacial string tension, Polyakov loops, and the screening of timelike and spacelike magnetic currents.
متن کاملar X iv : h ep - l at / 9 91 20 16 v 1 9 D ec 1 99 9 NON PERTURBATIVE QCD
This series of lectures consists of two parts. In the first part the foundations of perturbative and non perturbative formulation are discussed. The ambiguity in the definition of vacuum condensates is then analyzed. In the second part the symmetry patterns of the deconfining phase transition are discussed.
متن کاملar X iv : h ep - l at / 0 21 00 10 v 1 7 O ct 2 00 2 1 Compact QED under scrutiny : it ’ s first order
We report new results from our finite size scaling analysis of 4d compact pure U(1) gauge theory with Wilson action. Investigating several cumulants of the plaquette energy within the Borgs-Kotecky finite size scaling scheme we find strong evidence for a first-order phase transition and present a high precision value for the critical coupling, βT in the thermodynamic limit.
متن کاملar X iv : h ep - l at / 9 90 50 30 v 1 2 4 M ay 1 99 9 Z 2 Monopoles , Vortices and the Universality of the SU ( 2 ) Deconfinement Transition
We investigate the effect of Z2 magnetic monopoles and vortices on the finite temperature deconfinement phase transition in the fundamental adjoint SU(2) lattice gauge theory. In the limit of complete suppression of the Z2 monopoles, the mixed action for the SU(2) theory in its Villain form is shown to be self-dual under the exchange of the fundamental and adjoint couplings. By further suppress...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1992