Regularization Dependence of the Zero Mode Dynamics in the Schwinger Model
نویسنده
چکیده
I compare heatkernel regularization with sharp gauge invariant cutoffs in the Hamiltonian formulation of the Coulomb gauged Schwinger model on a circle. The effective potential for the zero mode of the gauge field in a given fermionic configuration is different in these two regularizations, the difference being independent of the chosen fermionic configuration. In the continuum limit L → ∞ the gauge field can be localized or delocalized depending on the regulator.
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تاریخ انتشار 2008