The Polyakov path integral over bordered surfaces |
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Authors: | Zbigniew Jaskólski |
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Institution: | (1) Institute of Theoretical Physics, University of Wrocław, ul Cybulskiego 36, PL-50205 Wrocław, Poland |
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Abstract: | Following the general scheme of the convariant path integral quantization of gauge systems, two alternative formulations of
the first quantized closed bosonic string in a position representation are presented. In both approaches the covariant path
integral representations of the propagator and of the higher order off-shell amplitudes are constructed. For a wide class
of gauges the explicit formulae for off-shell amplitudes are obtained. This paper is the continuation of our previous work
where the corresponding problems in the open string case were considered 20]. |
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