Localization of nonlocal theories

被引：107

作者：

Calcagni, Gianluca ^{[1
]}

Montobbio, Michele ^{[2
,3
]}

Nardelli, Giuseppe ^{[3
,4
]}

机构：

[1] Univ Sussex, Dept Phys, Brighton BN1 9QH, E Sussex, England

[2] Univ Trent, Dipartimento Fis, I-38100 Trento, Italy

[3] Univ Trent, INFN Grp Collegato Trento, I-38100 Trento, Italy

[4] Univ Cattolica, Dipartimento Matemat & Fis, I-25121 Brescia, Italy

来源：

PHYSICS LETTERS B | 2008年 / 662卷 / 03期

关键词：

nonlocal theories; string field theory;

D O I：

10.1016/j.physletb.2008.03.024

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：285 / 289

页数：5

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