9410210 Classical / Quantum Duality

نویسنده

  • M. J. Duff
چکیده

String theory requires two kinds of loop expansion: classical (α ′) world-sheet loops with expansion parameter < T > where T is a modulus field, and quantum (¯ h) spacetime loops with expansion parameter < S > where S is the dilaton field. Four-dimensional string/string duality (a corollary of ten-dimensional string/fivebrane duality) interchanges the roles of S and T and hence interchanges classical and quantum.

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تاریخ انتشار 1994