Quantum stress in chaotic billiards Linköping University Postprint
... for T␣共x , y兲 is quite satisfactory for small net currents. However, a distinct difference between experiments and theory is observed at higher net flow, which could be explained using a Gaussian random field, where the net current was taken into account by an additional plane wave with a preferent ...
... for T␣共x , y兲 is quite satisfactory for small net currents. However, a distinct difference between experiments and theory is observed at higher net flow, which could be explained using a Gaussian random field, where the net current was taken into account by an additional plane wave with a preferent ...
Possible large-N fixed-points and naturalness for O(N) scalar fields
... must be fine-tuned to cancel the radiative correction. We mentioned mH is O() or mbare H the difficulties with a large mH. A way out is for to be relatively small, but then what replaces λφ 4 beyond ? One may argue that regulators must be sent to limiting values before making physical conclusion ...
... must be fine-tuned to cancel the radiative correction. We mentioned mH is O() or mbare H the difficulties with a large mH. A way out is for to be relatively small, but then what replaces λφ 4 beyond ? One may argue that regulators must be sent to limiting values before making physical conclusion ...
Simulation Study of GaN/Al 1-x Ga x N Quantum
... In this work we used a free simulator 1D Poisson. This simulator can be used for calculating energy band diagram for semiconductor structures. It basically solves the 1D Poisson and Schrodinger equations self-consistently [17]. More details about the theory can be found elsewhere [18,19]. The band d ...
... In this work we used a free simulator 1D Poisson. This simulator can be used for calculating energy band diagram for semiconductor structures. It basically solves the 1D Poisson and Schrodinger equations self-consistently [17]. More details about the theory can be found elsewhere [18,19]. The band d ...
Quantum Theories of Mind
... We now come to an essential and widely misunderstood aspect of quantum theory, the Superposition Principle. It is entailed by the fact that the single particle equations of quantum theory are linear. “Linear” means the wave function occurs once in each term, and not, say, twice so it is squared. Con ...
... We now come to an essential and widely misunderstood aspect of quantum theory, the Superposition Principle. It is entailed by the fact that the single particle equations of quantum theory are linear. “Linear” means the wave function occurs once in each term, and not, say, twice so it is squared. Con ...
Phil Anderson And Gauge Symmetry Breaking
... Schwinger’s concept was summarized in the last sentence of his first paper: “the essential point is embodied in the view that the observed physical world is the outcome of the dynamical play among underlying primary fields, and the relationship between these fundamental fields and the phenomenologic ...
... Schwinger’s concept was summarized in the last sentence of his first paper: “the essential point is embodied in the view that the observed physical world is the outcome of the dynamical play among underlying primary fields, and the relationship between these fundamental fields and the phenomenologic ...
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.