|Lecturer||Prof. Dr. Hans Peter Büchler|
|Start||16. April 2013|
|Room||Pfaffenwaldrinf 57, S5.331|
|Content||Quantum field theory arose out of our need to describe the ephemeral nature of life. [...] In quantum mechanics the uncertainty principle tells us that the energy can fluctuate wildly over a small interval of time. According to special relativity, energy can be converted into mass and vice versa.With quantum mechanics and special relativity, the wildly fluctuating energy can metamorphose into mass, that is, into new particles not previously present. Write down the Schrodinger equation for an electron scattering off a proton. The equation describes the wave function of one electron, and no matter how you shake and bake the mathematics of the partial differential equation, the electron you follow will remain one electron. But special relativity tells us that energy can be converted to matter: If the electron is energetic enough, an electron and a positron (''the antielectron'') can be produced. The Schrodinger equation is simply incapable of describing such a phenomenon. Nonrelativistic quantum mechanics must break down. |
|Readings|| D. V. Schroeder, An Introduction To Quantum Field Theory. Levant Books, 2005.
 A. Zee, Quantum Field Theory in a Nutshell: (Second Edition). Princeton University Press, 2010.
 F. Mandl and G. Shaw, Quantum Field Theory. John Wiley & Sons, 2010.
 L. H. Ryder, Quantum Field Theory. Cambridge University Press, 1996.
 C. Itzykson and J. B. Zuber, Quantum Field Theory. Dover Publications, 2005.
 M. Srednicki, Quantum Field Theory. Cambridge University Press,2007.