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The Schwinger Model on the lattice in the Microcanonical Fermionic Average approach

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arxiv hep-lat/9401032 v1 pith:P2O7SCJB submitted 1994-01-27 hep-lat

The Schwinger Model on the lattice in the Microcanonical Fermionic Average approach

classification hep-lat
keywords averagefermioniclatticemethodmicrocanonicalmodelschwingerapplicability
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

The Microcanonical Fermionic Average method has been used so far in the context of lattice models with phase transitions at finite coupling. To test its applicability to Asymptotically Free theories, we have implemented it in QED$_2$, \it i.e.\rm the Schwinger Model. We exploit the possibility, intrinsic to this method, of studying the whole $\beta, m$ plane at negligible computer cost, to follow constant physics trajectories and measure the $m \to 0$ limit of the chiral condensate. We recover the continuum result within 3 decimal places.

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