Chiral order parameter of the Wilson fermion formulation in a lattice <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">CP</mi></mrow><mrow><mi mathvariant="normal">N</mi><mi mathvariant="normal">−</mi><mn>1</mn></mrow></msup></mrow></math></span> model

We study the Wilson formulation of fermions in the ${CP}^{N - 1}$ model by means of a nonstandard definition of the vacuum. We discuss the results.

DOI:https://doi.org/10.1103/PhysRevD.31.3213

The Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, DK-2100 Copenhagen O/, Denmark

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Physical Review D