ACP Seminar (Astronomy - Cosmology - Particle Physics)

Speaker: Jacob Bourjaily (Princeton)
Title: Quantum Field Theory and the Analytic S-Matrix, Redux
Date (JST): Wed, Jun 01, 2011, 13:30 - 15:00
Place: Seminar Room A
Related File: 456.pdf
Abstract: I will summarize some of the most striking examples of how our understanding of quantum field theory has evolved in recent years, illustrating a deep, underlying simplicity which is completely obfuscated by the familiar formalism of Feynman diagrams. I will describe how analyticity combined with the kinematic simplicity of Penrose's twistor variables leads to a powerful, recursive definition of (planar) scattering amplitudes to all orders of perturbation theory. No special familiarity with the subject should be required.
Contact: Watari, Sudano
Remarks: 1.5 hr