Optical properties of ZnO/(Zn, Mg)O quantum wells
... from the screening of the internal electric field by high densities of electron-hole dipoles. Such effects can also be produced for the wider QWs at moderate excitation densities because of the large recombination time as discussed below. A prerequisite to determine the magnitude of the internal ele ...
... from the screening of the internal electric field by high densities of electron-hole dipoles. Such effects can also be produced for the wider QWs at moderate excitation densities because of the large recombination time as discussed below. A prerequisite to determine the magnitude of the internal ele ...
NLS Theory-Gariaev - NLS BIORRESONANCIA
... other direction [11]. How do we reconcile this with the law of conservation of energy and whence those additional photons which have formed the peak? A second question is - why is this peak not observed at reflection of light from continuous half-space? And finally - From what we have seen, are ther ...
... other direction [11]. How do we reconcile this with the law of conservation of energy and whence those additional photons which have formed the peak? A second question is - why is this peak not observed at reflection of light from continuous half-space? And finally - From what we have seen, are ther ...
1. Borges
... brain through the different senses and functions of our body. From this point there arose the difficulties faced by those who wanted to define reality´s intimate nature, since whatever the method used to detect it, it is always about interactions, that depend not only on the interacting local elemen ...
... brain through the different senses and functions of our body. From this point there arose the difficulties faced by those who wanted to define reality´s intimate nature, since whatever the method used to detect it, it is always about interactions, that depend not only on the interacting local elemen ...
Electronic States in Semiconductor Quantum Dots
... should be faster and may also dissipate less heat. There is also the added feature that quantum-mechanical effects are so important in such systems that devices with fundamentally new properties could be obtained. In this perspective a relevant example are single electron transistor devices. Otherwi ...
... should be faster and may also dissipate less heat. There is also the added feature that quantum-mechanical effects are so important in such systems that devices with fundamentally new properties could be obtained. In this perspective a relevant example are single electron transistor devices. Otherwi ...
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.