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Mixed states and the density operator. Taught by Wyatt Kirkby in 2021
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Finished L4IdenticalParticles and started L5IdenticalParticlesExchangeInteraction
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Presenter: Ryan LaRue Supervisor(s): Dr. David Latulippe Project Description: The presence of anthropogenic plastic waste in aquatic environments is widespread and poses significant environmental,…
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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…
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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…
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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…
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Finished the Born approximation and started partial waves (L23ScatteringTheory3_Partial_Waves)
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Scattering theory: covered the basic setup of a scattering experiment, including the differential scattering cross-section, asymptotic wavefunction, and the scattering amplitude (L21ScatteringTheory1)
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Physics 4Q03 Lecture 22: This lecture recaps the previous ones and completes the interactions of a nonrelativistic charged particle to include the Coulomb interaction.
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Physics 4Q03 Lecture 21: This lecture describes how the electromagnetic vector potential (ie photons) couple to nonrelativistic charged particles, constructing the interactions by `gauging' the…
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Physics 4Q03 Lecture 20: This lecture describes how to construct interactions between electromagnetic fields and the Schrodinger fields that describe slowly moving particles. The interactions…
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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…
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Physics 4Q03 Lecture 15: This lecture describes the leading corrections to the classical BEC, using a Bogoliubov transformation to identify the spectrum of quasiparticle fluctuations about the…
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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…
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Physics 4Q03 Lecture 12: This lecture summarizes the position space formalism of the previous lecture and introduces simple self-interactions.
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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…
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Physics 4Q03 Tutorial Feb 22, 2021
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Physics 4Q03 Tutorial Feb 11, 2021
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Physics 4Q03 Tutorial Feb 10, 2021
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Physics 4Q03 Tutorial Feb 08, 2021
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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…
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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…
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Phys 4Q03 Tutorial for Feb 4, 2021.
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