From the Type I String to M-theory: A Continuous Connection

Abstract

It is well-known that the SO(32) and $E_8\times E_8$ heterotic strings can be continuously connected to each other in nine dimensions. Since the strong-coupling duals of these theories are respectively the SO(32) Type I theory and M-theory compactified on a line segment, there should be a corresponding continuous connection between the Type I string and M-theory. In this paper, we give an explicit construction of this dual connecting theory. Our construction also enables us to realize the $E_8\times E_8$ heterotic string as a D-string soliton of the Type I theory. This provides a useful alternative description of the D-brane bound states previously discussed from a Type I' point of view.

14 pages, LaTeX, 1 figure

References in corpus (3)

• On Gauge Bosons in the Matrix Model Approach to M Theory
• Duality without Supersymmetry: The Case of the SO(16)xSO(16) String
• M(atrix) Theory on an Orbifold and Twisted Membrane

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