Search for tag: "particle"

00_What_is_QFT

This is lecture 0: what is QFT and how will this course be taught? This provides a short 18 minute description of what the quantum field theory is about, together with a short summary of topics. The…

From  Clifford Burgess 500 plays 0  

02_IdentPtcl_SHO

Physics 4Q03 Lecture 02. This lecture describes several issues associated with multiple-particle states in quantum mechanics, including the classification of all particles as bosons or fermions and…

From  Clifford Burgess 156 plays 0  

07_Emission

Physics 4Q03 Lecture 07: This lecture applies Fermi's Golden Rule to evaluate the rate for photon emission by an excited atom. This example is also used to illustrate the phenomenon of…

From  Clifford Burgess 134 plays 0  

03_Creation_Annihilation

Physics 4Q03 Lecture 03: This lecture provides the foundation of much of what follows: the definition and properties of creation and annihilation operators. These operators provide a basis in terms…

From  Clifford Burgess 134 plays 0  

08-AbsrbGenNThermalDist

4Q03 Lecture 08: This lecture continues to convert Fermi's Golden Rule to continuum normalization, doing so for a simple absorption process and then for a general scattering process, defining…

From  Clifford Burgess 105 plays 0  

Lecture 1 - Atomic and Nuclear Physics

From  Troy Farncombe 101 plays 0  

28_Klein-Gordon Field and Lagrangians

Physics 4Q03 Lecture 28: This lecture applies the framework of relativistic quantum fields to the simplest case of a spinless particle and constructs the Klein Gordon hamiltonian and some of its…

From  Clifford Burgess 89 plays 0  

09-CoherentState

Physics 4Q03 Lecture 09: This lecture introduces coherent states, and derives them as the eigenstates to which a bosonic system is often driven in the presence of persistent stimulated emission. The…

From  Clifford Burgess 85 plays 0  

27-Microcausality

Physics 4Q03 Lecture 27: This lecture describes the logic that determines which fields can be used to represent particles of different spins, and describes the requirement of microcausality and why…

From  Clifford Burgess 84 plays 0  

04_Fermions_Completeness

Physics 4Q03 Lecture 04: This lecture extends the notions of creation and annihilation operators to fermions, and derives the anticommutation algebra that these satisfy. The lecture also sketches out…

From  Clifford Burgess 84 plays 0  

10-FieldEnergyRenorm

4Q03 Lecture 10: This lecture computes the energy shift of a particle due to its interaction with another, introducing ultraviolet divergences and the concept of renormalization along the way. The…

From  Clifford Burgess 77 plays 0  

12-PositionSpace Interactions

Physics 4Q03 Lecture 12: This lecture summarizes the position space formalism of the previous lecture and introduces simple self-interactions.

From  Clifford Burgess 66 plays 0  

11-Locality2ndQuantization

4Q03 Lecture 11; This lecture argues why the Hamiltonian should arise as a local function in space, and this is used to motivate the definition of position-space fields. The local form for the…

From  Clifford Burgess 64 plays 0  

Nuclear Medicine - Part 1

From  Troy Farncombe 62 plays 0  

CO3_etiquette contre le gaspillage

CO3: Cette Compréhension Orale comporte 3 parties correspondant à 3 écoutes (1ère écoute ; 2ème écoute ; 3ème écoute).Pour chaque…

From  Fanny Mace 62 plays 0  

Lecture 2 - Ionizing Radiation Interactions

From  Troy Farncombe 58 plays 0  

MUCEC 2021 - Ahmad Arefi

Presenter: Ahmad Arefi Supervisor(s): Dr. Michael Thompson Project Description: Solid-liquid dispersions consisting of polymer nanoparticles have several applications such as adhesives, coatings, and…

From  Kushal Panchal 53 plays 0  

13-BE Condensation

Physics 4Q03 Lecture 13: This lecture reviews how to set up averages with statistical mechanics, translating the grand canonical ensemble into the language of occupation number. This is used to…

From  Clifford Burgess 45 plays 0  

14-Semiclassical BEC

Physics 4Q03 Lecture 14: This lecture continues the discussion of Bose Einstein condensation and shows how a semiclassical analysis can allow a calculation of the optimal density of condensed…

From  Clifford Burgess 45 plays 0  

QFT-Tut-210113

This is the QFT Tutorial for Jan 13, 2021.

From  Clifford Burgess 44 plays 0  

18-MorePhotonsEM

Physics 4Q03 Lecture 18: This lecture continues the previous one on photons in electromagnetism, and provides a sermon about UV and IR divergences and why you can use any regularization you like to…

From  Clifford Burgess 39 plays 0  

QFT-Tut-210128

Phys 4Q03 Tutorial for Jan 28, 2021. (This one mistakenly has a music track appended from a playlist that was playing when I was setting up and which I forgot to turn off because i could not hear it…

From  Clifford Burgess 34 plays 0  

QFT-Tut-210204

Phys 4Q03 Tutorial for Feb 4, 2021.

From  Clifford Burgess 30 plays 0  

PHYS 3QI3 Class 2

Continued going through the slides: QI2_Overview

From  DUNCAN O'DELL 29 plays 0