Speaker
Hiroki Ohata
(YITP, Kyoto University)
Description
In the conventional lattice formulation, conducting a Monte Carlo study of the Schwinger model (quantum electrodynamics in 1 + 1 dimensions) with a topological $\theta$ term or at finite density is almost impossible due to the sign problem. In this talk, I present the lattice formulation of the bosonized Schwinger model, which allows us to study the model using the Monte Carlo method without encountering the sign problem. I demonstrate the validity of the formulation by presenting numerical results at a finite $\theta$ angle and finite density. I also discuss possible applications of this formulation to other models.
| Topical area | QCD at Non-zero Density |
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Primary author
Hiroki Ohata
(YITP, Kyoto University)