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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Gianluca Calcagni


PIRSA:09100061  ( MP4 Medium Res , MP3 , PDF ) Which Format?
String field theory as a diffusing system
Speaker(s): Gianluca Calcagni
Abstract: We review some recent results on tachyon nonperturbative solutions of the nonlocal, lowest-level, effective action of string field theory. It is shown how nonlocality is encoded in a spacetime diffusion equation and how the latter emerges from the symmteries of the full, background-independent theor... read more
Date: 11/11/2009 - 4:00 pm

PIRSA:09110060  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Horava-Lifshitz gravity: What's the matter?
Speaker(s): Gianluca Calcagni
Abstract:
Date: 09/11/2009 - 3:00 pm

PIRSA:08040005  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Nonlocality and string field theory
Speaker(s): Gianluca Calcagni
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... read more
Date: 22/04/2008 - 2:00 pm
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