Localization of nonlocal theories

Giuseppe Nardelli; Gianluca Calcagni; Michele Montobbio

doi:10.1016/j.physletb.2008.03.024

Localization of nonlocal theories

Giuseppe Nardelli
, Gianluca Calcagni^*
, Michele Montobbio

^*Corresponding author

University of Sussex
University of Trento

Research output: Contribution to journal › Article › peer-review

98 Citations (Scopus)

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.

Original language	English
Pages (from-to)	285-289
Number of pages	5
Journal	PHYSICS LETTERS. SECTION B
Issue number	B662
DOIs	https://doi.org/10.1016/j.physletb.2008.03.024
Publication status	Published - 2008

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Keywords

nonlocal field theories

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10.1016/j.physletb.2008.03.024

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AU - Calcagni, Gianluca

AU - Montobbio, Michele

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AB - 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.

KW - nonlocal field theories

UR - https://publicatt.unicatt.it/handle/10807/7714

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JO - PHYSICS LETTERS. SECTION B

JF - PHYSICS LETTERS. SECTION B

IS - B662

ER -

Localization of nonlocal theories

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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