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Topological Matrix Model
Author(s) -
Shinji Hirano,
Mitsuhiro Kato
Publication year - 1997
Publication title -
progress of theoretical physics
Language(s) - English
Resource type - Journals
eISSN - 1347-4081
pISSN - 0033-068X
DOI - 10.1143/ptp.98.1371
Subject(s) - physics , spacetime , background independence , noncommutative geometry , theoretical physics , string theory , light cone , gauge theory , matrix (chemical analysis) , spacetime topology , gauge symmetry , general covariance , string (physics) , dimension (graph theory) , extra dimensions , mathematical physics , symmetry (geometry) , matrix model , quantum gravity , quantum mechanics , relationship between string theory and quantum field theory , pure mathematics , quantum , quantum field theory in curved spacetime , geometry , general relativity , mathematics , materials science , composite material
Starting from the primal principle based on the noncommutative nature of(9+1)-dimensional spacetime, we construct a topologically twisted version ofthe supersymmetric reduced model with a certain modification. Our formulationautomatically provides extra 1+1 dimensions, thereby the dimensions ofspacetime are promoted to 10+2. With a suitable gauge choice, we can reduce themodel with (10+2)-dimensional spacetime to the one with (9+1)-dimensions andthus we regard this gauge as the light-cone gauge. It is suggested that themodel so obtained would describe the light-cone F-theory. From this viewpointwe argue the relation of the reduced model to the matrix model of M-theory andthe SL(2,Z) symmetry of type IIB string theory. We also discuss the generalcovariance of the matrix model in a broken phase, and make some comments on thebackground independence.Comment: 18 pages, LaTeX, no figures, minor corrections and modifications, references adde

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