Generalized ghost-free propagators in nonlocal field theories
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DOI: 10.1103/physrevd.101.084019
Abstract: In this paper we present an iterative method to generate an infinite class of new nonlocal field theories whose propagators are ghost-free. We first examine the scalar field case and show that the pole structure… read more here.
Keywords: field theories; field; free propagators; generalized ghost ... See more keywords