Englert, F. and Houart, L. and Taormina, A. (2001) 'Brane fusion in the bosonic string and the emergence of fermionic strings.', Journal of high energy physics., 08 . 013.
We review the emergence of the ten-dimensional fermionic closed string theories from subspaces of the Hilbert space of the 26-dimensional bosonic closed string theory compactified on an E8 × SO(16) lattice. They arise from a consistent truncation procedure which generates space-time fermions out of bosons. This procedure is extended to open string sectors. We prove that truncation of the unique tadpole-free SO(213) bosonic string theory compactified on the above lattice determines the anomaly free Chan-Paton group of the type-I theory and the consistent Chan-Paton groups of type-O theories. It also predicts the tension of space-filling D-branes in these fermionic theories. The derivation of these fermionic string properties from bosonic considerations alone points towards a dynamical origin of the truncation process. Space-time fermions and supersymmetries would then arise from bosonic degrees of freedom and no fermionic degrees of freedom would be needed in a fundamental theory of quantum gravity.
|Keywords:||Bosonic Strings, Superstrings, Heterotic Strings, D-branes.|
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|Publisher Web site:||http://dx.doi.org/10.1088/1126-6708/2001/08/013|
|Record Created:||23 Apr 2007|
|Last Modified:||15 Sep 2010 17:00|
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