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Brane world from IIB matrices

Jun Nishimura·Graziano Vernizzi
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Abstract

We have recently proposed a dynamical mechanism that may realize a flat four-dimensional space time as a brane in type IIB superstring theory. A crucial role is played by the phase of the chiral fermion integral associated with the IKKT Matrix Theory, which is conjectured to be a nonperturbative definition of type IIB superstring theory. We demonstrate our mechanism by studying a simplified model, in which we find that a lower-dimensional brane indeed appears dynamically. We also comment on some implications of our mechanism on model building of the brane world.

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Jun Nishimura, Graziano Vernizzi. 2000-08-22. Brane world from IIB matrices. https://doi.org/10.1103/physrevlett.85.4664

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