Lecture

Asymptotic States and S-matrix

In course

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Description

This lecture covers the concept of asymptotic states and S-matrix in quantum field theory, focusing on the evolution of wave packets and the scattering states. The instructor explains the importance of discrete symmetries and the role of S-matrix in potential scattering. The lecture delves into the formalism of S-matrix elements and their relation to the Lippmann-Schwinger equation, emphasizing the unitarity of the S-matrix. Additionally, the lecture discusses the measurement in quantum mechanics, spin preparation, and the possibilities of spin states. The content also includes the application of the S-matrix in understanding the interaction amplitudes and the unitarity of the theory.

Instructors (2)

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Official source

https://mediaspace.epfl.ch/media/0_5twpnvj1

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Ontological neighbourhood

Mathematics

Algebra: Linear algebra

Physics

Quantum field theory: Topics in quantum field theory

Statistics

Statistical inference: Mathematical statistics

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