Net force on an asymmetrically excited two-atom - MathPhys-UVa
... the resonant interaction is inherently time dependent, since it involves a nearly reversible and periodic excitation transfer between the two atoms. For nonidentical atoms, in the weak coupling regime, the probability of total excitation transfer is small, it is attenuated by the spontaneous emissio ...
... the resonant interaction is inherently time dependent, since it involves a nearly reversible and periodic excitation transfer between the two atoms. For nonidentical atoms, in the weak coupling regime, the probability of total excitation transfer is small, it is attenuated by the spontaneous emissio ...
Resonant ionization of shallow donors in electric field Linköping University Post Print
... the discrepancy reaches 33% for the higher one. It is not difficult to see that in all considered cases the energies of Ref. [4] are lower than ours, indicating that the accuracy of our results is inferior and deteriorates with increasing electric field. Therefore, the experimental data will be comp ...
... the discrepancy reaches 33% for the higher one. It is not difficult to see that in all considered cases the energies of Ref. [4] are lower than ours, indicating that the accuracy of our results is inferior and deteriorates with increasing electric field. Therefore, the experimental data will be comp ...
phys3313-fall12-112812
... Elementary Particles • Before the quark concepts, all known elementary particles were grouped in four depending on the nature of their interactions ...
... Elementary Particles • Before the quark concepts, all known elementary particles were grouped in four depending on the nature of their interactions ...
Quantum random walks – new method for designing quantum
... Quantum walks can be used to design quantum algorithms for many problems. Quantum walk search: create a classical random walk, quantize it with a speedup. “Quantum black box” within a classical algorithm. ...
... Quantum walks can be used to design quantum algorithms for many problems. Quantum walk search: create a classical random walk, quantize it with a speedup. “Quantum black box” within a classical algorithm. ...
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.