Search for tag: "momentum"

61 Media

PHYSICS739_AngularMomentum7 duration 1 hour 19 minutes PHYSICS739_AngularMomentum7 PHYSICS739_AngularMomentum7	PHYSICS739_AngularMomentum7 Wigner-Eckart theorem. Note: I previously thought I had lost the recording for PHYSICS739_AngularMomentum6, but I think I found it (it is on macvideo) matrix minus thing vector rotation elements operator momentum element epsilon things charge events basis bar axis guy fact selection operators From DUNCAN O'DELL 8 plays 0 Usage Rights None (All Rights Reserved)
PHYS-4F03-class16 duration 50 minutes 40 seconds PHYS-4F03-class16 PHYS-4F03-class16	PHYS-4F03-class16 Started the WKB approximation (L13WKB_approximation.pdf) equation bar series phi wavelength function approximation prime momentum wave schrodinger expression expansion times position potential term energy sort theory From DUNCAN O'DELL 14 plays 0
PHYS-4F03-class19 duration 45 minutes 48 seconds PHYS-4F03-class19 PHYS-4F03-class19	PHYS-4F03-class19 Studied the WKB approximation for a particle in a potential well (L15WKB_potential_well) point solution energy turning pi phase half potential function problem side oscillator things cosine momentum region bar sort hand units From DUNCAN O'DELL 11 plays 0
PHYS-4F03-class25 duration 51 minutes 26 seconds PHYS-4F03-class25 PHYS-4F03-class25	PHYS-4F03-class25 Finished selection rules (and thereby finished L17T_dep_PT_part3). Started new topic: adiabatic approximation (L18Adiabatic) energy momentum box sort fact matrix levels function transition delta change schrodinger approximation harmonics epsilon element atom equation minus ground From DUNCAN O'DELL 6 plays 0
PHYS-4F03-class18 duration 52 minutes 13 seconds PHYS-4F03-class18 PHYS-4F03-class18	PHYS-4F03-class18 Finished going through WKB connection formulae (L14WKBconnection) solution point side turning form function hand region potential phase momentum minus solutions wave theta wk equation pi exponentials term From DUNCAN O'DELL 9 plays 0
PHYS-4F03-class_4 duration 48 minutes 20 seconds PHYS-4F03-class_4 PHYS-4F03-class_4	PHYS-4F03-class_4 Finished addition of angular momentum. Started L4identical particles. spin basis particle momentum half particles operator minus direction things components coefficients operators sort component sum mechanics values elements bases From DUNCAN O'DELL 9 plays 0
PHYS4F03_class34 duration 54 minutes 3 seconds PHYS4F03_class34 PHYS4F03_class34	PHYS4F03_class34 Finished partial waves and began scattering phase shifts (L24ScatteringTheory4_Phase_shifts) wave potential waves scattering form function expression sum term factor momentum energy zone problem functions plane solution cross sphere thing From DUNCAN O'DELL 5 plays 0
PHYS4F03_class29 duration 40 minutes 46 seconds PHYS4F03_class29 PHYS4F03_class29	PHYS4F03_class29 Studied the Aharonov-Bohm effect (as an example of a Berry phase) and thereby finished the slides on Berry's phase. field solenoid phase potential path vector flux thing effect wave fields phi mechanics berry electromagnetism electrons rho momentum fact row From DUNCAN O'DELL 4 plays 0
PHYS4F03_class33 duration 53 minutes 5 seconds PHYS4F03_class33 PHYS4F03_class33	PHYS4F03_class33 Finished the Born approximation and started partial waves (L23ScatteringTheory3_Partial_Waves) wave scattering potential momentum problem plane approximation function energy equation solution field particles theory direction functions amplitude waves form things From DUNCAN O'DELL 3 plays 0
PHYS-4F03-Class_2 duration 51 minutes 29 seconds PHYS-4F03-Class_2 PHYS-4F03-Class_2	PHYS-4F03-Class_2 Went through 2nd half of "What is a Quantum Spin" slides spin momentum matrix direction basis sigma particle vector identity bar times operator matrices thing sort singlet bit half space minus From DUNCAN O'DELL 14 plays 0
27-Microcausality duration 1 hour 22 minutes 27-Microcausality 27-Microcausality	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… lambda transformations particle lorentz field transformation phi matrix thing inverse spin particles star times space representations fields invariant momentum function From Clifford Burgess 84 plays 0
28_Klein-Gordon Field and Lagrangians duration 1 hour 19 minutes 28_Klein-Gordon Field and Lagrangians 28_Klein-Gordon Field and Lagrangians	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… phi star particle hamiltonian thing particles energy momentum things field times bar factor function equation term space commutator schrodinger interaction From Clifford Burgess 89 plays 0
26-Poincare Generators duration 1 hour 15 minutes 26-Poincare Generators 26-Poincare Generators	26-Poincare Generators Physics 4Q03 Lecture 26: This lecture works through how Poincare generators (4-momentum and the angular momentum tensor) transform in quantum relativity. A sketch is given of the argument for the… transformations lambda transformation thing omega alpha times matrix things lorentz inverse beta mu space hamiltonian theta epsilon multiplication bar momentum From Clifford Burgess 71 plays 0
18-MorePhotonsEM duration 1 hour 0 minutes 18-MorePhotonsEM 18-MorePhotonsEM	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… energy ground thing things lambda particles theory answer distances field naught story momentum omega plates divergences problem electromagnetism particle function From Clifford Burgess 39 plays 0
17-PhotonsInQED duration 1 hour 7 minutes 17-PhotonsInQED 17-PhotonsInQED	17-PhotonsInQED Physics 4Q03 Lecture 17: This lecture continues the discussion of quantizing the electromagnetic fields and shows how field energy and momentum can be written in terms of photon creation and… field energy thing equation things omega epsilon operator lambda solution function equations star operators momentum freedom vector density delta k. From Clifford Burgess 48 plays 0
PHYS-4F03-Class_3 duration 49 minutes 16 seconds PHYS-4F03-Class_3 PHYS-4F03-Class_3	PHYS-4F03-Class_3 Operator approach to angular momentum. Started addition of angular momentum. momentum basis minus bar matrix spin factor operator component eigenvalue values sort integer particle space times instance half max operators From DUNCAN O'DELL 15 plays 0
PHYS-4F03-Class7.mp4 duration 50 minutes 2 seconds PHYS-4F03-Class7.mp4 PHYS-4F03-Class7.mp4	PHYS-4F03-Class7.mp4 particles energy electrons electron momentum helium coulomb ground interaction nucleus spin atom level ways things sort atoms shell temperature protons From DUNCAN O'DELL 4 plays 0
PHYSICS739_AngularMomentum4 duration 1 hour 32 minutes PHYSICS739_AngularMomentum4 PHYSICS739_AngularMomentum4	PHYSICS739_AngularMomentum4 Started studying the addition of angular momentum using the lowering operator method. Introduced direct sums and direct products of Hilbert spaces for the coupled and uncoupled bases, respectively. minus space thing basis momentum components matrix operator times things values s1 spin notation total subspace operators bar j. elements From DUNCAN O'DELL 5 plays 0 Usage Rights None (All Rights Reserved)
PHYSICS739_AngularMomentum3 duration 1 hour 19 minutes PHYSICS739_AngularMomentum3 PHYSICS739_AngularMomentum3	PHYSICS739_AngularMomentum3 Completed Euler angles, started considering rotation operators for general values of j. rotation axis matrix space minus thing prime things axes spin alpha rotations mechanics momentum half elements gamma j. matrices beta From DUNCAN O'DELL 5 plays 0 Usage Rights None (All Rights Reserved)
PHYS739_AngularMomentum1 duration 1 hour 24 minutes PHYS739_AngularMomentum1 PHYS739_AngularMomentum1	PHYS739_AngularMomentum1 Finished slides on "What is a spin?" spin thing matrix direction momentum basis particle mechanics operator bar space theory times field things axis identity electron angle components From DUNCAN O'DELL 2 plays 0 Usage Rights None (All Rights Reserved)
PHYS739_approximation_Methods4 duration 1 hour 33 minutes PHYS739_approximation_Methods4 PHYS739_approximation_Methods4	PHYS739_approximation_Methods4 Generalized our treatment of first order transitions to include a slow switch on of the perturbation. energy function times things thing bar width delta particle nucleus size momentum probability rate density omega box energies transition angle From DUNCAN O'DELL 2 plays 0 Usage Rights None (All Rights Reserved)
PHYSICS739_approximation_Methods2 duration 1 hour 27 minutes PHYSICS739_approximation_Methods2 PHYSICS739_approximation_Methods2	PHYSICS739_approximation_Methods2 Introduced the interaction picture picture perturbation schrodinger equation interaction evolution energy matrix symmetry operator momentum hamiltonian thing minus hydrogen ground operators things theory problem From DUNCAN O'DELL 0 plays 0 Usage Rights None (All Rights Reserved)
PHYS739_Approximation_Methods1 duration 1 hour 20 minutes PHYS739_Approximation_Methods1 PHYS739_Approximation_Methods1	PHYS739_Approximation_Methods1 Started perturbation theory. Gave example of quadratic Stark shift of ground state. levels perturbation energy ground degenerate matrix theory subspace problem correction things eigenvectors field contribution momentum idea thing bunch term polarizability From DUNCAN O'DELL 1 plays 0 Usage Rights None (All Rights Reserved)
PHYSICS739_ElectromagneticFields duration 1 hour 37 minutes PHYSICS739_ElectromagneticFields PHYSICS739_ElectromagneticFields	PHYSICS739_ElectromagneticFields Discussed how to include electromagnetic fields in the Schrodinger equation and path integrals, and also covered the Aharonov-Bohm effect mechanics field things function vector thing fields momentum position gauge flux potential path wave motion respect loop transformations operator times From DUNCAN O'DELL 1 plays 0 Usage Rights None (All Rights Reserved)