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String theory as a diffusing system

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Calcagni,  Gianluca
Microscopic Quantum Structure & Dynamics of Spacetime, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

0910.2160v2.pdf
(Preprint), 432KB

JHEP2010_093.pdf
(Publisher version), 2MB

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Citation

Calcagni, G., & Nardelli, G. (2010). String theory as a diffusing system. Journal of High Energy Physics, 2010(02): 093. doi:10.1007/JHEP02(2010)093.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-6101-5
Abstract
Recent results on the effective non-local dynamics of the tachyon mode of open string field theory (OSFT) show that approximate solutions can be constructed which obey the diffusion equation. We argue that this structure is inherited from the full theory, where it admits a universal formulation. In fact, all known exact OSFT solutions are superpositions of diffusing surface states. In particular, the diffusion equation is a spacetime manifestation of OSFT gauge symmetries.