Electron-hole correlations in semiconductor quantum dots with tight-binding wave functions
... ⫺r兩 ,R) that is assumed to be a function of both the separation 兩 r⬘⫺r兩 of the two particles and the dot radius R. Spinorbit couplings are not included in this work. We use the nearest-neighbor s p 3 s * tight-binding description. The structure of a quantum dot is modeled as an anioncentered zinc-bl ...
... ⫺r兩 ,R) that is assumed to be a function of both the separation 兩 r⬘⫺r兩 of the two particles and the dot radius R. Spinorbit couplings are not included in this work. We use the nearest-neighbor s p 3 s * tight-binding description. The structure of a quantum dot is modeled as an anioncentered zinc-bl ...
One Complexity Theorist`s View of Quantum Computing
... though, shy away from quantum complexity because it appears that a deep knowledge of physics is necessary to understand BQP. Also most papers use a strange form of notation that make their results appear more difficult than they really are. This paper argues that one can think about BQP as just a re ...
... though, shy away from quantum complexity because it appears that a deep knowledge of physics is necessary to understand BQP. Also most papers use a strange form of notation that make their results appear more difficult than they really are. This paper argues that one can think about BQP as just a re ...
Quantum Theory: a Pragmatist Approach
... went through are typically alleged to be “meaningless”3. The secondary role of the quantum state is to offer guidance on the legitimacy and limitations of descriptive claims about a physical situation. The key idea here is that even assuming unitary evolution of the quantum state of system and envir ...
... went through are typically alleged to be “meaningless”3. The secondary role of the quantum state is to offer guidance on the legitimacy and limitations of descriptive claims about a physical situation. The key idea here is that even assuming unitary evolution of the quantum state of system and envir ...
SLAC-PUB-2310 April 1979 (T/E) A SCHEMATIC MODEL OF
... from these ideas in both respects. may be generated ...
... from these ideas in both respects. may be generated ...
Quantum Teleportation
... exact copy rather than an approximate facsimile, and it would destroy the original in the process of scanning it. The teleportation technique makes use of quantum entanglemant. Clouds of trillions of atoms have for the first time being linked by quantum entanglement that spooky almost telepathic lin ...
... exact copy rather than an approximate facsimile, and it would destroy the original in the process of scanning it. The teleportation technique makes use of quantum entanglemant. Clouds of trillions of atoms have for the first time being linked by quantum entanglement that spooky almost telepathic lin ...
geometrization of electromagnetism in tetrad-spin
... of the metric tensor. Accordingly, the variation with respect to the affine connection can be replaced by the variation with respect to the spin connection (the Einstein-Cartan-Kibble-Sciama theory) [24–28]. In this paper, which follows Refs. [29, 30], we use the tetrad and spin connection as the gr ...
... of the metric tensor. Accordingly, the variation with respect to the affine connection can be replaced by the variation with respect to the spin connection (the Einstein-Cartan-Kibble-Sciama theory) [24–28]. In this paper, which follows Refs. [29, 30], we use the tetrad and spin connection as the gr ...
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.