ar X iv : h ep - t h / 05 12 22 2 v 2 1 2 Ja n 20 06 On Minimal N = 4 Topological Strings And The ( 1 , k ) Minimal Bosonic String

ar X iv : h ep - t h / 05 12 22 2 v 3 2 4 M ar 2 00 6 On Minimal N = 4 Topological Strings And The ( 1 , k ) Minimal Bosonic String

In this paper we consider tree-level scattering in the minimal N = 4 topological string and show that a large class of N -point functions can be recast in terms of corresponding amplitudes in the (1, k) minimal bosonic string. This suggests a non-trivial relation between the minimal N = 4 topological strings, the (1, k) minimal bosonic strings and their corresponding ADE matrix models. This rel...

ar X iv : h ep - t h / 06 12 12 9 v 3 1 1 Ja n 20 07 STRING COSMOLOGY

ar X iv : h ep - t h / 95 05 18 3 v 1 3 1 M ay 1 99 5

Using the N = 4 topological reformulation of N = 2 strings, we compute all loop partition function for special compactifications of N = 2 strings as a function of target moduli. We also reinterpret N = 4 topological amplitudes in terms of slightly modified N = 2 topological amplitudes. We present some preliminary evidence for the conjecture that N = 2 strings is the large N limit of Holomorphic...

ar X iv : h ep - t h / 05 06 19 7 v 2 2 4 Ju n 20 05 The emergence of noncommutative target space in noncritical string theory

We show how a noncommutative phase space appears in a natural way in noncritical string theory, the noncommutative deformation parameter being the string coupling.

ar X iv : h ep - t h / 06 05 27 4 v 2 1 6 A ug 2 00 6 hep - th / 0605274 Metric and coupling reversal in string theory

Invariance under reversing the sign of the metric G M N (x) and/or the sign of the string coupling field H Universe K contains only F1 and NS5 of IIB and Heterotic SO(32).