Organizational details#

• M.Sc. Physics specialization course
• Standard course description can be found at the following link (on page 82) [https://www.physik.uni-heidelberg.de/c/image/d/studium/master/pdf/MScModuleManual.pdf](https://www.physik.uni-heidelberg.de/c/image/d/studium/master/pdf/MScModuleManual.pdf
• Course organization on PhU for registered students ( PhU link)

Course material#

• Combined problem sets : qftii_combined.pdf(Solutions could provided on specific requests to instructors 😄)

Plenary tutorials#

0. Thursday, 18 April 2024, (2:15 PM - 4:00 PM)

   • Organizational matters
   • What is ‘High Energy Physics’?,
   • Energy scales in QFT (UV vs IR)
   • Idea behind Effective Field Theories (EFTs) using three quick examples : $\lambda \phi^4$ , gravity as a QFT, and QCD
   • A brief idea on what does it mean for a theory to be “renormalizable”
   • Importance of non-renormalizable theories

   Notes : tutorial0.pdf

1. Thursday, 25 April 2024, (2:15 PM - 4:00 PM)

   • What is renormalization? (The idea of dressed particles)
   • Connection between renormalization and the spectral density function

   Notes : tutorial1.pdf

   Supplementary material (A detailed worked out version of first 6-7 pages of Chapter 7 of Peskin & Schroeder) : tutorial1_supp.pdf

2. Thursday, 2 May 2024, (2:15 PM - 4:00 PM)

   • Buildup for renormalizing $\lambda \phi^4$
   • Renormalizing $\lambda \phi^4$

   Notes : tutorial2.pdf

3. Thursday, 16 May 2024, (2:15 PM - 4:00 PM)

   • How interactions change the propagator in perturbation theory (1PI diagrams)
   • Role of counterterms (Renormalization conditions)
   • Vertex function

   Notes - Chapter 33 of QFT for the Gifted Amateur

4. Thursday, 23 May 2024, (2:15 PM - 4:00 PM)

   • A summary of renormalized QED

   Notes : tutorial4_part1.pdf, tutorial4_part2.pdf

5. Thursday, 07 June 2024, (2:15 PM - 4:00 PM)

   • Faddeev Popov gauge fixing technique for an Abelian gauge theory (QED)

   Notes : tutorial6.pdf