Recent Progress in Superstring Theory
نویسنده
چکیده
Superstring theory has continued to develop at a rapid clip in the past few years. Following a quick review of some of the major discoveries prior to 1998, this talk focuses on a few of the more recent developments. The topics I have chosen to present are 1) the use of K-theory to classify conserved charges carried by D-branes; 2) tachyon condensation on unstable D-brane systems; and 3) an introduction to noncommutative field theories and their solitons. Talk presented at the Conference Quantization, Gauge Theory, and Strings dedicated to the memory of Professor Efim Fradkin and at the Ninth Marcel Grossmann Meeting (MG9) Work supported in part by the U.S. Dept. of Energy under Grant No. DE-FG03-92-ER40701.
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