Loops versus Matrices - The nonperturbative aspects of noncritical string

Details Loops versus Matrices - The nonperturbative aspects of noncritical string Loops versus Matrices - The nonperturbative aspects of noncritical string

2004-05-10

arxiv.org/abs/hep-th/0405076v5

Prog.Theor.Phys. 112 (2004) 131-181

Physics

High Energy Physics

High Energy Physics - Theory

58 pages, 3 figures, PTPTeX, published version

Scientific paper

10.1143/PTP.112.131

The nonperturbative aspects of string theory are explored for non-critical string in two distinct formulations: loop equations and matrix models. The effects corresponding to D-brane in these formulations are especially investigated in detail. It is shown that matrix models can universally yield a definite value of the chemical potential for an instanton while loop equations can not. This implies that string theory may not be nonperturbatively formulated solely in terms of closed strings.

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