Nonperturbative effect in c=1 noncritical string theory and Penner model
Abstract
We derive the effect of instantons in the Penner model. It is known that the free energies of the Penner model and the c=1 noncritical string at selfdual radius agree in a suitable double scaling limit. On the other hand, the instanton in the matrix model describes a nonperturbative effect in the noncritical string theory. We study the correspondence between the instantons in the Penner model and the nonperturbative effect in c=1 noncritical string at selfdual radius.
 Publication:

Nuclear Physics B
 Pub Date:
 April 2006
 DOI:
 10.1016/j.nuclphysb.2006.02.006
 arXiv:
 arXiv:hepth/0512176
 Bibcode:
 2006NuPhB.740..222M
 Keywords:

 High Energy Physics  Theory
 EPrint:
 26 pages, 3 figures