Nuts and Bolts of the Ion Band State Theory
... electromagnetic fields. This is possible because these atoms do not have core electrons. Thus, these atoms can “bond” (or not “bond”) to a host in unusual ways in response to small, external forces. These bonding features can induce vibrations (previously identified as phonons), in which the nuclei ...
... electromagnetic fields. This is possible because these atoms do not have core electrons. Thus, these atoms can “bond” (or not “bond”) to a host in unusual ways in response to small, external forces. These bonding features can induce vibrations (previously identified as phonons), in which the nuclei ...
Spintronics and Quantum Dots for Quantum Computing and
... quantum dots have been measured [29], with at most one spin per dot. The relatively small T2∗ decoherence times (a few ns at vanishing magnetic field), which have been seen in these experiments, probably originate from a large inhomogeneous broadening due to a strong variation of g-factors [29]. Nev ...
... quantum dots have been measured [29], with at most one spin per dot. The relatively small T2∗ decoherence times (a few ns at vanishing magnetic field), which have been seen in these experiments, probably originate from a large inhomogeneous broadening due to a strong variation of g-factors [29]. Nev ...
Intensified antibunching via feedback
... which the field interferes with itself. Two important cases will be discussed. Firstly the case of constructive interference, ω0 τ = n2π, n = 1, 2, ..., and secondly, the case of destructive interference ω0 τ = n2π + π, n = 0, 1, 2, .... Now we consider the expectation value for two photon processes ...
... which the field interferes with itself. Two important cases will be discussed. Firstly the case of constructive interference, ω0 τ = n2π, n = 1, 2, ..., and secondly, the case of destructive interference ω0 τ = n2π + π, n = 0, 1, 2, .... Now we consider the expectation value for two photon processes ...
Perspectives on organisms.
... everywhere. Even the central theory of biology, evolution, is undergoing reassessment in the light of discoveries showing that what the modern synthesis said was impossible, such as the inheritance of acquired characters, does in fact occur. There is an essential incompleteness in biological theory ...
... everywhere. Even the central theory of biology, evolution, is undergoing reassessment in the light of discoveries showing that what the modern synthesis said was impossible, such as the inheritance of acquired characters, does in fact occur. There is an essential incompleteness in biological theory ...
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.