Lecture and tutorial notes on Topics of Many Body Theory 2020/21
Tutorial 1 - 02/03/2021
Generating function
Tutorial 1 - 02/03/2021
Gaussian integrals in n-dimensional real space
Tutorial 1 - 02/03/2021
Real n-dimensional gaussian integrals with linear terms
Tutorial 1 - 02/03/2021
Gaussian averages and Wick theorem
Tutorial 1 - 02/03/2021
Perturbed gaussian measure - perturbation expansion beyond gaussian integrals
Tutorial 2 - 09/03/2021
Feynman diagrams
Tutorial 2 - 09/03/2021
Connected Feynman diagrams
Tutorial 2 - 09/03/2021
Linked cluster theorem
Tutorial 2 - 09/03/2021
Correlation functions - averages
Tutorial 2 - 09/03/2021
Generating function for cumulants
Tutorial 3 - 16/03/2021
Grassmann algebra and analysis
Tutorial 3 - 16/03/2021
Gaussian integral with two Grassmann generators
Tutorial 3 - 16/03/2021
Jacobian for Grassmann variables
Tutorial 3 - 16/03/2021
Gaussian integral with many Grassmann variables
Tutorial 4 - 23/03/2021
Feynman path integral in quantum mechanics
Tutorial 4 - 23/03/2021
Propagator for free particle from Feynman integral
Tutorial 4 - 23/03/2021
Momentum operator from a Feynman integral
Tutorial 5 - 30/03/2021
Feynman integral in statistical mechanics
Tutorial 5 - 30/03/2021
Feynman integral for harmonic oscillator
Tutorial 5 - 30/03/2021
Feynman integral and two point correlation function of harmonic oscillator
Tutorial 6 - 20/04/2021
Evaluation of Matsubara sums by complex integrals
Tutorial 6 - 20/04/2021
Evaluation of Matsubara sums in case of simple poles
Tutorial 6 - 20/04/2021
Evaluation of Matsubara sums in case of branch cut
Tutorial 7 - 22/04/2021
Derivation of some mathematical identities
Tutorial 7 & 8 - 22&27/04/2021
Path integral solution of the Hubbard model in atomic limit; Hubbard-Stratonovich transformation
Tutorial 8 - 27/04/2021
Small polaron in atomic limit
Lecture 1 - 04/05/2021
Fermi liquid theory
Lecture 2 - 11/05/2021
Fermi liquid theory
Lecture 3 - 18/05/2021
Fermi liquid theory
Lecture 4 - 25/05/2021
Fermi liquid theory
Lecture 5 - 01/06/2021
Fermi liquid theory
Lecture 6 - 08/06/2021
Fermi liquid theory
Literature to the Fermi liquid theory 04/05/2021
Literature Fermi liquid theory
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