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arXiv · 0712.2237

Localization of nonlocal theories

Gianluca Calcagni·Michele Montobbio·Giuseppe Nardelli
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Abstract

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.

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Gianluca Calcagni, Michele Montobbio, Giuseppe Nardelli. 2008-04-07. Localization of nonlocal theories. https://doi.org/10.1016/j.physletb.2008.03.024

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