String theory as a Lilliputian world

Authors :: Yuri Makeenko
Jan Ambjørn
Source :: Ambjorn, J & Makeenko, Y 2016, ' String theory as a Lilliputian world ', Physics Letters B, vol. 756, pp. 142-146 . https://doi.org/10.1016/j.physletb.2016.02.075, Physics Letters B, Vol 756, Iss C, Pp 142-146 (2016), Physics Letters B, Physics Letters B, 756, 142-146, Physics Letters B, 756, May, pp. 142-146
Publication Year :: 2016
Abstract: Lattice regularizations of the bosonic string allow no tachyons. This has often been viewed as the reason why these theories have never managed to make any contact to standard continuum string theories when the dimension of spacetime is larger than two. We study the continuum string theory in large spacetime dimensions where simple mean field theory is reliable. By keeping carefully the cutoff we show that precisely the existence of a tachyon makes it possible to take a scaling limit which reproduces the lattice-string results. We compare this scaling limit with another scaling limit which reproduces standard continuum-string results. If the people working with lattice regularizations of string theories are akin to Gulliver they will view the standard string-world as a Lilliputian world no larger than a few lattice spacings.<br />11 pages, 1 figure

Language :: English
ISSN :: 03702693
Database :: OpenAIRE
Journal :: Ambjorn, J & Makeenko, Y 2016, ' String theory as a Lilliputian world ', Physics Letters B, vol. 756, pp. 142-146 . https://doi.org/10.1016/j.physletb.2016.02.075, Physics Letters B, Vol 756, Iss C, Pp 142-146 (2016), Physics Letters B, Physics Letters B, 756, 142-146, Physics Letters B, 756, May, pp. 142-146
Accession number :: edsair.doi.dedup.....bb0677b43603a831138c4c2fa5761b77
Full Text :: https://doi.org/10.1016/j.physletb.2016.02.075