String theory, supersymmetry, unification, and all that
- California Institute of Technology, Pasadena, California 91125 (United States)
- Institute for Advanced Study, Princeton, New Jersey 08540 (United States)
String theory and supersymmetry are theoretical ideas that go beyond the standard model of particle physics and show promise for unifying all forces. After a brief introduction to supersymmetry, the authors discuss the prospects for its experimental discovery in the near future. They then show how the magic of supersymmetry allows us to solve certain quantum field theories exactly, thus leading to new insights about field theory dynamics related to electric-magnetic duality. The discussion of superstring theory starts with its perturbation expansion, which exhibits new features including {open_quotes}stringy geometry.{close_quotes} The authors then turn to more recent nonperturbative developments. Using new dualities, all known superstring theories are unified, and their strong-coupling behavior is clarified. A central ingredient is the existence of extended objects called branes. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 306283
- Journal Information:
- Reviews of Modern Physics, Vol. 71, Issue 2; Other Information: PBD: Mar 1999
- Country of Publication:
- United States
- Language:
- English
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