1 99 2 CTP TAMU – 30 / 92 April 1992 A Review of W Strings
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چکیده
We review some of the recent developments in the construction of W-string theories. These are generalisations of ordinary strings in which the two-dimensional " worldsheet " theory, instead of being a gauging of the Virasoro algebra, is a gauging of a higher-spin extension of the Virasoro algebra—a W algebra. Despite the complexity of the (non-linear) W algebras, it turns out that the spectrum can be computed completely and explicitly for more or less any W string. The result is equivalent to a set of spectra for Virasoro strings with unusual central charge and intercepts.
منابع مشابه
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تاریخ انتشار 1992