
Transport Electron through a Quantum Wire by Side-Attached Asymmetric Quantum-Dot Chains
... In this section, simulated results including the electronic conductance through quantum wire with side-coupled asymmetric QD-arrays as a scatter system are presented and discussed. Effect of dots number in QD-chains on quantum wire transmission for two balanced and unbalanced cases is illustrated in ...
... In this section, simulated results including the electronic conductance through quantum wire with side-coupled asymmetric QD-arrays as a scatter system are presented and discussed. Effect of dots number in QD-chains on quantum wire transmission for two balanced and unbalanced cases is illustrated in ...
Psec TOF for Particle Identification at HEP Colliders
... the study of the properties of the top quark. The quarks themselves are not stable, and essentially instantaneously decay to states of integer electric charge and zero net color (the charge of the strong interaction). These states consist of a number of particles, which can include pions, kaons, pro ...
... the study of the properties of the top quark. The quarks themselves are not stable, and essentially instantaneously decay to states of integer electric charge and zero net color (the charge of the strong interaction). These states consist of a number of particles, which can include pions, kaons, pro ...
Vortex states of a disordered quantum Hall bilayer P. R. Eastham,
... resistivity,4,5 which can be understood as excitonic superfluidity, and a zero-bias tunneling anomaly,6,7 which can be interpreted as a Josephson effect. However, the analogy is incomplete because neither the counterflow resistivity nor the width of the tunneling anomaly8 appears to vanish at finite ...
... resistivity,4,5 which can be understood as excitonic superfluidity, and a zero-bias tunneling anomaly,6,7 which can be interpreted as a Josephson effect. However, the analogy is incomplete because neither the counterflow resistivity nor the width of the tunneling anomaly8 appears to vanish at finite ...
Quantum Mechanics
... Hence, in contrast to classical mechanics, Schrödinger’s equation can qualitatively explain the quantization of atomic/polyatomic q p y energies. g ...
... Hence, in contrast to classical mechanics, Schrödinger’s equation can qualitatively explain the quantization of atomic/polyatomic q p y energies. g ...
TWO-STATE SYSTEMS
... It is interesting to notice what has happened to the concept of “physical dimension.” We recognize a physical parameter t with the dimensionality of “time,” which we read from the “clock on the wall,” not from the printed output of a “meter” as here construed: time we are prepared to place in a clas ...
... It is interesting to notice what has happened to the concept of “physical dimension.” We recognize a physical parameter t with the dimensionality of “time,” which we read from the “clock on the wall,” not from the printed output of a “meter” as here construed: time we are prepared to place in a clas ...
January 2011
... 3. A right circular cylinder of radius R and length L is carrying a uniform current I parallel to the axis of the cylinder. a) What is the direction and magnitude of the magnetic field inside the cylinder? (Ignore end effects, and other sources of the B field). b) Next, directed towards the above cu ...
... 3. A right circular cylinder of radius R and length L is carrying a uniform current I parallel to the axis of the cylinder. a) What is the direction and magnitude of the magnetic field inside the cylinder? (Ignore end effects, and other sources of the B field). b) Next, directed towards the above cu ...
Peering Inside Atoms
... oscillator. The device can potentially be used as a new frequency reference to accurately keep time in GPS, computers, wristwatches and other devices, researchers said. Other potential applications that could be derived from this metamaterial-based platform include high precision sensors and quantum ...
... oscillator. The device can potentially be used as a new frequency reference to accurately keep time in GPS, computers, wristwatches and other devices, researchers said. Other potential applications that could be derived from this metamaterial-based platform include high precision sensors and quantum ...
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.