Magnetoexcitons break antiunitary symmetries
... described by GOE statistics, especially for small values of s, as can be seen from Fig. 2. Very recently, M. Aßmann et al [31] have shown experimentally that excitons in Cu2 O show GUE statistics in an external magnetic field. However, since their experimental spectra were analyzed exactly for B (0, ...
... described by GOE statistics, especially for small values of s, as can be seen from Fig. 2. Very recently, M. Aßmann et al [31] have shown experimentally that excitons in Cu2 O show GUE statistics in an external magnetic field. However, since their experimental spectra were analyzed exactly for B (0, ...
Violation of Heisenberg’s Measurement-Disturbance Relationship by Weak Measurements
... later, it may also change the state in such a way that the right-hand side (RHS) of Heisenberg’s inequality is modified as well. Because of these difficulties the disturbance, as described here, has been claimed to be experimentally inaccessible [16]. A recent experiment has indirectly tested Ozawa’ ...
... later, it may also change the state in such a way that the right-hand side (RHS) of Heisenberg’s inequality is modified as well. Because of these difficulties the disturbance, as described here, has been claimed to be experimentally inaccessible [16]. A recent experiment has indirectly tested Ozawa’ ...
Superconductivity, a Physical Chemical Perspective
... electron affinity of C60 is quoted as 2.65 eV,11 and the electron affinity for the C60 monoanion is estimated as being of the order of 0.1 to 0.4 eV,10 insufficient energy to ionize atomic Cs. Formation of C604- would be very strongly endothermic. Solid state formation of a bosonic pair in an anioni ...
... electron affinity of C60 is quoted as 2.65 eV,11 and the electron affinity for the C60 monoanion is estimated as being of the order of 0.1 to 0.4 eV,10 insufficient energy to ionize atomic Cs. Formation of C604- would be very strongly endothermic. Solid state formation of a bosonic pair in an anioni ...
Quantum Decoherence and the - Philsci
... thermodynamical evolutions are not impossible; there are infinitely many of them. (The existence of anti-thermodynamical trajectories in phase space was the basis for Loschmidt’s reversibility objection to Boltzmann’s first H theorem; see Ehrenfest and Ehrenfest 1912.) One question we shall address ...
... thermodynamical evolutions are not impossible; there are infinitely many of them. (The existence of anti-thermodynamical trajectories in phase space was the basis for Loschmidt’s reversibility objection to Boltzmann’s first H theorem; see Ehrenfest and Ehrenfest 1912.) One question we shall address ...
Chapter 2 Theory of angular momentum
... – spin (|S| F.i., the Earth has an orbital angular momentum attributable to its annual revolution around the Sun, and a spin angular momentum coming from its daily rotation about the north-south axis. However, this description is only a matter of conve~ can be obtained by adding the angular momenta, ...
... – spin (|S| F.i., the Earth has an orbital angular momentum attributable to its annual revolution around the Sun, and a spin angular momentum coming from its daily rotation about the north-south axis. However, this description is only a matter of conve~ can be obtained by adding the angular momenta, ...
Effects of collisions on conservation laws in gyrokinetic field theory
... Gyrokinetic theories and simulations are powerful means to investigate microinstabilities and turbulent transport processes in magnetically confined plasmas.1–4 Originally, gyrokinetic equations are derived by recursive techniques combined with the WKB or ballooning representation.5–10 On the other ...
... Gyrokinetic theories and simulations are powerful means to investigate microinstabilities and turbulent transport processes in magnetically confined plasmas.1–4 Originally, gyrokinetic equations are derived by recursive techniques combined with the WKB or ballooning representation.5–10 On the other ...
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.