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
Unruh Effect in nonlocal field theories
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DOI: 10.1103/physrevd.95.101701
Abstract: We study the Unruh Effect for a wide class of nonlocal theories. Using the approach of Bogoliubov coefficients, we show that the Unruh Effect remains entirely unmodified in these theories. However, for those nonlocal theories… read more here.
Keywords: unruh effect; nonlocal field; effect; field theories ... See more keywords