Multicritical matrix-vector models of quantum orbifold geometry
Chi-Wei Herbert Lee
Журнал:
Journal of High Energy Physics
Дата:
2003-11-01
Аннотация:
We construct bosonic and fermionic matrix-vector models which describe orbifolded string worldsheets at a limit in which the dimension of the vector space and the matrix order are taken to infinity. We evaluate tree-level one-loop or multiloop amplitudes of these string worldsheets by means of Schwinger-Dyson equations and derive their expressions at the multicritical points. Some of these amplitudes resemble or are closely related to those of ordinary multicritical Hermitean matrix models by a constant factor, whereas some differ significantly.
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