Conformal Matter Field
نویسنده
چکیده
In the context of two-dimensional quantum cosmology, we consider the pathintegral of a string on annulus which contains the Liouville field and conformal matter fields. We show that, in the transition amplitude of the string universe, the non-zero modes of the fields are all cancelled out only when we take the c = 1 conformal matter field and impose the Neumann boundary condition on the system. The transition amplitude obtained obeys the minisuperspace Wheeler-DeWitt equation. In our treatment, the modular parameter on annulus plays the role of time variable to integrate out. 1 e-mail: [email protected] 1
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