philphys - General Guide To Personal and Societies Web Space
... It is in the equations that the problem of measurement is most starkly seen. The state ψ in non-relativistic quantum mechanics is a function on the configuration space of a system (or one isomorphic to it, like momentum space). A point in this space specifies the positions of all the particles compr ...
... It is in the equations that the problem of measurement is most starkly seen. The state ψ in non-relativistic quantum mechanics is a function on the configuration space of a system (or one isomorphic to it, like momentum space). A point in this space specifies the positions of all the particles compr ...
Renormalisation of φ4-theory on noncommutative R4 to all orders
... always finite. The UV/IR-problem was found in all UV-divergent field theories on the Moyal plane. Models with at most logarithmic UV-divergences (such as two-dimensional and supersymmetric theories) can be defined at any loop order, but their amplitudes are still unbounded at exceptional momenta. ...
... always finite. The UV/IR-problem was found in all UV-divergent field theories on the Moyal plane. Models with at most logarithmic UV-divergences (such as two-dimensional and supersymmetric theories) can be defined at any loop order, but their amplitudes are still unbounded at exceptional momenta. ...
Wavefunction of the Universe on the Landscape of String Theory
... Relating life to the existence of structure may be incorrect. E.g: It can be based on requiring carbon. But it may be over simplistic to derive Λ from this effect, because: We are incapable of calculating a probability distribution for the universe since both life and structure are too complex and w ...
... Relating life to the existence of structure may be incorrect. E.g: It can be based on requiring carbon. But it may be over simplistic to derive Λ from this effect, because: We are incapable of calculating a probability distribution for the universe since both life and structure are too complex and w ...
AP Physics Daily Problem #107
... How much work was done on the electron while it was between the plates? ...
... How much work was done on the electron while it was between the plates? ...
fundamental_reality\fund_notes_up_math
... to discredit the new quantum physics. This thought experiment said that if quantum theory were correct, a change in spin of one particle in a two particle system would effect its twin simultaneously, instantaneously, even if the two had been widely separated in space. A mathematical proof of this wa ...
... to discredit the new quantum physics. This thought experiment said that if quantum theory were correct, a change in spin of one particle in a two particle system would effect its twin simultaneously, instantaneously, even if the two had been widely separated in space. A mathematical proof of this wa ...
Paper : IIT-JEE Physics Question Paper Of Year 1999
... object P is kept at a distance of mR from it. Find the value of m for which a ray from P will emerge parallel to the table as shown in figure. (b) Photoelectrons are emitted when 400 nm radiation is incident on a surface of work function 1.9 eV. These photoelectrons pass through a region containing ...
... object P is kept at a distance of mR from it. Find the value of m for which a ray from P will emerge parallel to the table as shown in figure. (b) Photoelectrons are emitted when 400 nm radiation is incident on a surface of work function 1.9 eV. These photoelectrons pass through a region containing ...
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.