Some exact results on the matter star-product in the half-string formalism

Details Some exact results on the matter star-product in the half-string formalism Some exact results on the matter star-product in the half-string formalism

2001-10-22

arxiv.org/abs/hep-th/0110204v2

JHEP 0201 (2002) 019

Physics

High Energy Physics

High Energy Physics - Theory

27 pages; footnote added

Scientific paper

10.1088/1126-6708/2002/01/019

We show that the D25 sliver wavefunction, just as the D-instanton sliver, factorizes when expressed in terms of half-string coordinates. We also calculate analytically the star-product of two zero-momentum eigenstates of $\hat{x}$ using the vertex in the oscillator basis, thereby showing that the star-product in the matter sector can indeed be seen as multiplication of matrices acting on the space of functionals of half strings. We then use the above results to establish that the matrices $\rho_{1,2}$, conjectured by Rastelli, Sen and Zwiebach to be left and right projectors on the sliver, are indeed so.

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