String Theory
All Roads Lead to String Theory (Polchinski)
Prior to the First Superstring Revolution
Early History S-Matrix Theory
Regge Trajectory
Bosonic String Theory Worldsheet
Bosonic String Theory
String Perturbation Theory
Tachyon Condensation
Supersymmetric Revolution Supersymmetry
RNS Formalism
GS Formalism
Superstring Revolutions
First Superstring Revolution GSO Projection
Type II String Theory
Type IIB String Theory
Type IIA String Theory
Type I String Theory
Type H String Theory
Type HO String Theory
Type HE String Theory
Second Superstring Revolution T-Duality
Horava-Witten String Theory
Holographic Principle
N=4 Super-Yang-Mills Theory
BFSS Matrix Theory
Matrix String Theory
(2,0) Theory
Twistor String Theory
String Field Theory
Pure Spinor Formalism
After the Revolutions
Phenomenology String Theory Landscape
Minimal Supersymmetric Standard Model
String Phenomenology


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Vipul Periwal is a string theorist at the University of Princeton, Princeton, New Jersey.[1] He showed together with David Gross that string perturbation theory is divergent.[1]

ReferencesEdit this section

  1. 1.0 1.1 Gross, David, J.; Periwal, Vipul (4-1-1994). "String field theory, non-commutative Chern-Simons theory and Lie algebra cohomology". Journal of High Energy Physics 64 (1): 1–10. arXiv:hep-th/0106242v1.pdf. Bibcode 2001JHEP...08..008G. doi:10.1088/1126-6708/2001/08/008.