Journal
PHYSICS LETTERS B
Volume 662, Issue 3, Pages 285-289Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2008.03.024
Keywords
nonlocal theories; string field theory
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We show that a certain class of nonlocal scalar models, with a kinetic operator inspired by string field theory, is equivalent to a system which is local in the coordinates but nonlocal in an auxiliary evolution variable. This system admits both Lagrangian and Hamiltonian formulations, and its Cauchy problem and quantization are well-defined. We classify exact nonperturbative solutions of the localized model which can be found via the diffusion equation governing the fields. (C) 2008 Elsevier B.V. All rights reserved.
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