Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-12-13
Phys.Lett.B662:285-289,2008
Physics
High Energy Physics
High Energy Physics - Theory
12 pages; v2: typos corrected
Scientific paper
10.1016/j.physletb.2008.03.024
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.
Calcagni Gianluca
Montobbio Michele
Nardelli Giuseppe
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