solving the sign problems of the massless lattice schwinger model with a dual formulation
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ID: 205691
2015
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Abstract
We derive an exact representation of the massless Schwinger model on the lattice in terms of dual variables which are configurations of loops, dimers and plaquette occupation numbers. When expressed with the dual variables the partition sum has only real and positive terms also when a chemical potential or a topological term are added – situations where the conventional representation has a complex action problem. The dual representation allows for Monte Carlo simulations without restrictions on the values of the chemical potential or the vacuum angle.
| Reference Key |
gattringer2015nuclearsolving
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|---|---|
| Authors | ;Christof Gattringer;Thomas Kloiber;Vasily Sazonov |
| Journal | biology and fertility of soils |
| Year | 2015 |
| DOI |
10.1016/j.nuclphysb.2015.06.017
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