wbm-physics
... whole number multiple of 1.6 x 10-19 “discovered” the charge on the electron Validation of atomic theory Combined with earlier research of J.J. Thomson to determine mass of electron ...
... whole number multiple of 1.6 x 10-19 “discovered” the charge on the electron Validation of atomic theory Combined with earlier research of J.J. Thomson to determine mass of electron ...
File
... Do I know that there is no magnetic force on a charged particle that is stationary in a magnetic field or is moving parallel to the field and can I explain why this should be so? Do I know the formula for the force on a charged particle moving at an angle 0 to a magnetic field B? Do I know the formu ...
... Do I know that there is no magnetic force on a charged particle that is stationary in a magnetic field or is moving parallel to the field and can I explain why this should be so? Do I know the formula for the force on a charged particle moving at an angle 0 to a magnetic field B? Do I know the formu ...
W11Physics1CLec28Bfkw
... Therefore, the light that allows you to accurately locate the electron changes the momentum of the electron (the maximum change is Dpx=h/). To minimize the momentum change, we could use longer wavelength photons. But because the photon also has wave properties, we can determine the electron positio ...
... Therefore, the light that allows you to accurately locate the electron changes the momentum of the electron (the maximum change is Dpx=h/). To minimize the momentum change, we could use longer wavelength photons. But because the photon also has wave properties, we can determine the electron positio ...
lecture 10
... We know that electron is definitely found somewhere in the space. The wavefunction ψ, which satisfies the above condition, is called normalized wavefunction. ...
... We know that electron is definitely found somewhere in the space. The wavefunction ψ, which satisfies the above condition, is called normalized wavefunction. ...
Particle Notes
... We can see right away that in the limit |~p | → 0, solutions have E = ±m. Does this mean that the Dirac Equation has negative energy solutions?! No. We interpret the “negative energy solutions” as antiparticles with positive energy. Antiparticles are like their corresponding particles with all signs ...
... We can see right away that in the limit |~p | → 0, solutions have E = ±m. Does this mean that the Dirac Equation has negative energy solutions?! No. We interpret the “negative energy solutions” as antiparticles with positive energy. Antiparticles are like their corresponding particles with all signs ...
If a bar magnet is divided into two equal pieces,
... C) Yes, the rays that appear to emanate from a virtual image can be focused on the retina just like those from an illuminated object. D) Yes, since almost everything we see is virtual because most things do not themselves give off light, but only reflect light coming from some other source. E) Yes, ...
... C) Yes, the rays that appear to emanate from a virtual image can be focused on the retina just like those from an illuminated object. D) Yes, since almost everything we see is virtual because most things do not themselves give off light, but only reflect light coming from some other source. E) Yes, ...
Comment on Griffiths about locality, realism and Bell experiments
... events and therefore it is hard to believe that strict causality does not hold true. However there are empirical facts that have led many people to propose that strict causality is not valid at the microscopic level. If strict causality does not hold, then necessarily quantum mechanics should be inc ...
... events and therefore it is hard to believe that strict causality does not hold true. However there are empirical facts that have led many people to propose that strict causality is not valid at the microscopic level. If strict causality does not hold, then necessarily quantum mechanics should be inc ...
Renormalization
In quantum field theory, the statistical mechanics of fields, and the theory of self-similar geometric structures, renormalization is any of a collection of techniques used to treat infinities arising in calculated quantities.Renormalization specifies relationships between parameters in the theory when the parameters describing large distance scales differ from the parameters describing small distances. Physically, the pileup of contributions from an infinity of scales involved in a problem may then result in infinities. When describing space and time as a continuum, certain statistical and quantum mechanical constructions are ill defined. To define them, this continuum limit, the removal of the ""construction scaffolding"" of lattices at various scales, has to be taken carefully, as detailed below.Renormalization was first developed in quantum electrodynamics (QED) to make sense of infinite integrals in perturbation theory. Initially viewed as a suspect provisional procedure even by some of its originators, renormalization eventually was embraced as an important and self-consistent actual mechanism of scale physics in several fields of physics and mathematics. Today, the point of view has shifted: on the basis of the breakthrough renormalization group insights of Kenneth Wilson, the focus is on variation of physical quantities across contiguous scales, while distant scales are related to each other through ""effective"" descriptions. All scales are linked in a broadly systematic way, and the actual physics pertinent to each is extracted with the suitable specific computational techniques appropriate for each.