PIRSA:08040005

Video URL

https://pirsa.org/08040005

Nonlocality and string field theory

Calcagni, G. (2008). Nonlocality and string field theory. Perimeter Institute for Theoretical Physics. https://pirsa.org/08040005

Calcagni, Gianluca. Nonlocality and string field theory. Perimeter Institute for Theoretical Physics, Apr. 22, 2008, https://pirsa.org/08040005 

          @misc{ scivideos_PIRSA:08040005,
            doi = {10.48660/08040005},
            url = {https://pirsa.org/08040005},
            author = {Calcagni, Gianluca},
            keywords = {Cosmology},
            language = {en},
            title = {Nonlocality and string field theory},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2008},
            month = {apr},
            note = {PIRSA:08040005 see, \url{https://scivideos.org/pirsa/08040005}}
          }

Gianluca Calcagni Max Planck Institute for Gravitational Physics - Albert Einstein Institute (AEI)

Talk numberPIRSA:08040005
DOI10.48660/08040005
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

We introduce a formalism allowing us to localize a certain class of theories with an infinite number of derivatives (nonlocal), which include effective actions of string field theory. The number of degrees of freedom is finite and the Cauchy problem, Hamiltonian and quantization are all well-defined. As applications, the rolling tachyon of cubic string field theory and some cosmological toy models are considered.