Timelike T-duality in the string field Schrodinger functional

Details Timelike T-duality in the string field Schrodinger functional Timelike T-duality in the string field Schrodinger functional

2004-11-18

arxiv.org/abs/hep-th/0411166v2

JHEP 0510:016,2005

Physics

High Energy Physics

High Energy Physics - Theory

49 pages, 39 .eps figures. Replaced with published version

Scientific paper

10.1088/1126-6708/2005/10/016

Timelike T-duality of string theory appears as a symmetry of time evolution in string field theory, exchanging evolution through times t and 1/t, and exchanging boundary states with backgrounds. This is demonstrated by constructing the string field Schrodinger functional, the generator of time evolution, based on Feynman diagram arguments and in analogy with quantum field theory. There, the functional can be described using only properties of first quantised particles on a timelike orbifold. Using new sewing rules applicable to both open and closed strings we generalise this approach to bosonic string theory and express the string field Schrodinger functional in terms of strings on S^1/Z_2.

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