Spring 2021 Physics 583 (QFT II) Zoom lectures
Spring 2021 Physics 583 (QFT II) Zoom lectures
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From Eduardo Fradkin
153 plays 0Physics 583 (QFT II) zoom lecture on Tuesday May 4, 2021. Today we discussed duality in the 2D XY model and in 3D compact electrodynamics. We discussed de theory of… -
From Eduardo Fradkin
97 plays 0Physics 583 (QFT II) Spring 2021 zoom lecture on Thursday April 29, 2021. today we showed that the O(3) nonlinear sigma model has instantons and D=2 Euclidean dimensions… -
From Eduardo Fradkin
100 plays 0Physics 583 (QFT II) Spring 2021 zoom lecture on Tuesday April 27, 2021. Today we begun the discussion of instantons and solitons. We discussed kink and domain wall… -
From Eduardo Fradkin
99 plays 0Physics 583 (QFT II) Spring 2021 zoom lecture on Thursday April 22, 2021. We continued the discussion of elementary lattice gauge theory. We did a quick review of the… -
From Eduardo Fradkin
106 plays 0Physucs 583 (QFT II) Spring 2021 Zoom lecture on Tuesday April 20, 2021. Today we discussed the large N limit of gauge theory, the planar diagrams dominance, and its… -
From Eduardo Fradkin
61 plays 0Physics 583 (QFT II) Spring 2021 zoom lecture on Thursday April 15, 2021. Today we discussed the solution of (massless0 QED in the limit of a large number of flavors. We… -
From Eduardo Fradkin
81 plays 0Physics 583 (QFT II) Spring 2021 zoom lecture on Thursday April 8, 2021. Today we discussed the renormalization and phase diagram of the O(N) nonlinear sigma model in… -
From Eduardo Fradkin
104 plays 0Physics 583 (QFT II) Spring 2021 zoom lecture on Tuesday April 6, 2021. Today we begun the discussion of 1/N expansions. We considered the large N limit of 𝜙^4 theory… -
From Eduardo Fradkin
64 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on Thursday April 1, 2021. today we covered the renormalization group treatment of QCD. -
From Eduardo Fradkin
54 plays 0Physics 583 (QFT II) Spring 2021 zoom lecture on Tuesday March 30, 2021. Today we finished the analysis of the non-linear sigma models using renormalized perturbation… -
From Eduardo Fradkin
74 plays 0Physics 583 (QFT II) zoom lecture on Thursday March 25, 2021. Today we used the the Ward Identities to show that the D=2 NLSM is renormalizable and requires only the… -
From Eduardo Fradkin
74 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on Tuesday March 23, 2021. Today we covered renormalization of 𝜙^4 theory to two loop order by dimensional regularization… -
From Eduardo Fradkin
86 plays 0Physics 583 (QFT II) Spring 2021 zoom lecture on Thursday March 16, 2021. Today we solved the Callan-Symanzik equation and investigated the nature if the solutions at a… -
From Eduardo Fradkin
100 plays 0Physics 583 (QFT II) Spring 2921 zoom lecture on Tuesday March 16, 2021. Today we calculated the OPE for 𝜙^4 theory around the free massless fixed point and used… -
From Eduardo Fradkin
89 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on 3/12/2021. Today we covered general properties of fixed pint theories and discussed the consequences of scale and… -
From Eduardo Fradkin
113 plays 0Physics 583 (QFT II) zoom lecture on Tuesday March 9, 2021. Today we covered the Wilson-Fisher momentum shell RG for 𝜙^4 theory and used it to derive the RG flows in… -
From Eduardo Fradkin
114 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on Thursday March 4, 2021. Today the discussed the Migdal-Kadanoff block spin transformation and used it to extract the RG… -
From Eduardo Fradkin
109 plays 0Physics 583 (QFT II) Spring 2021 zoom lecture on Tuesday March 2, 2021. Today we continued the discussion of the RG. We defined block spin transformations, fixed… -
From Eduardo Fradkin
111 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on February 25, 2021. Today we finished the solution of the quantum Ising chain and showed that it is a theory of Majorana… -
From Eduardo Fradkin
110 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on Tuesday February 23, 2021. Today we discussed the solution of the Ising quantum spin chain, discussed its symmetries and… -
From Eduardo Fradkin
134 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on Thursday February 18, 2021. Today we discussed the transfer matrix in Statistical Mechanics, when it can be hermitian… -
From Eduardo Fradkin
126 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on February 16, 2021. Today we covered the computation of a one-loop Feynman diagram using Pauli-Villars and Dimensional… -
From Eduardo Fradkin
90 plays 0Physics 583 (QFT II) Spring 2021 zoom lecture on Monday February 11, 2021. Today we discussed scaling dimensions and dimensions of coupling constants in several theories… -
From Eduardo Fradkin
117 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on Tuesday February 9, 2021. Today we discussed wave function renormalization in 𝜙^4 theory. We also discussed… -
From Eduardo Fradkin
149 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on Thursday February 4, 2021. Today we derived an expression for the effective potential for 𝜙^4 theory at one loop order.… -
From Eduardo Fradkin
187 plays 0Physics 583 (QFT II) Spring 2021 Zoom lecture on Tuesday February 2, 2021. Today we discussed the non-linear sigma model as the low energy limit of a scalar field theory… -
From Eduardo Fradkin
395 plays 0Physics 583 (QFT) Spring 2021 zoom lecture on January 28, 2021. Today we covered Ward Identities and spontaneous symmetry breaking in scalar field theories and their… -
From Eduardo Fradkin
396 plays 0Physics 583 (QFT II) SP 2021, lecture on 1/26/2021. Today we covered connected and 1PI vertex functions in 𝜙^4 theory, and the effective potential.