Charge Transport in Semiconductors Contents
... the wavepacket by multiplying with the Bloch function - ψ(r) ≈ φn0 (r)C(r) = un0 (r)C(r). The envelope functions C(r) can be actually determined for any potential - it amounts to solving the Schrödinger equation for a particle in the potential Ec (r) + V (r). Note that the envelope function in the ...
... the wavepacket by multiplying with the Bloch function - ψ(r) ≈ φn0 (r)C(r) = un0 (r)C(r). The envelope functions C(r) can be actually determined for any potential - it amounts to solving the Schrödinger equation for a particle in the potential Ec (r) + V (r). Note that the envelope function in the ...
Langer`s Method for the Calculation of Escape Rates
... thermally assisted magnetization reversal and thereby that of the information stored in recording media. The storage density may be increased by a factor of 10 by using very small, highly coercive anisotropic particles [36]. So, from one point of view, rather than being a problem, thermally assisted ...
... thermally assisted magnetization reversal and thereby that of the information stored in recording media. The storage density may be increased by a factor of 10 by using very small, highly coercive anisotropic particles [36]. So, from one point of view, rather than being a problem, thermally assisted ...
relativistic field theory
... a natural “relativistic predisposition” of classical field theory—of field theories in general. The reason for this state of affairs is not far to find: it was clearly articulated more than ninety years ago by Hermann Minkowski, who in had occasion to speak as follows:1 “The views of space and time ...
... a natural “relativistic predisposition” of classical field theory—of field theories in general. The reason for this state of affairs is not far to find: it was clearly articulated more than ninety years ago by Hermann Minkowski, who in had occasion to speak as follows:1 “The views of space and time ...
Symmetry breaking - Corso di Fisica Nucleare
... is broken to one of its subgroups. It is therefore possible to describe symmetry breaking in terms of relations between transformation groups, in particular between a group (the unbroken symmetry group) and its subgroup(s) [1] 2. Spontaneous symmetry breaking (SSB) indicates a situation where, given ...
... is broken to one of its subgroups. It is therefore possible to describe symmetry breaking in terms of relations between transformation groups, in particular between a group (the unbroken symmetry group) and its subgroup(s) [1] 2. Spontaneous symmetry breaking (SSB) indicates a situation where, given ...
Lokal fulltext - Chalmers tekniska högskola
... interactions, we cannot say anything for certain, rather only give probabilities for a specific outcome. This is not just a case of our theories not being good enough, or that we are not able to specify initial conditions with enough accuracy. This really is the way nature works. If two particles ar ...
... interactions, we cannot say anything for certain, rather only give probabilities for a specific outcome. This is not just a case of our theories not being good enough, or that we are not able to specify initial conditions with enough accuracy. This really is the way nature works. If two particles ar ...
On realism and quantum mechanics
... As suggested by classical optics, points a) and b) can be experimentally checked by the combined use of a quarter wavelength plate and a polaroid. It is to be stressed that these measurements tell us which is the polarization of the photons before their entrance in the experimental apparatus (plate ...
... As suggested by classical optics, points a) and b) can be experimentally checked by the combined use of a quarter wavelength plate and a polaroid. It is to be stressed that these measurements tell us which is the polarization of the photons before their entrance in the experimental apparatus (plate ...
Quantum Proofs for Classical Theorems
... where [n] denotes the set {1, . . . , n} and the vectors |i, ji = |ii ⊗ | ji form an orthonormal basis for Cmn . This tensor product of states |φ i and |ψi is also often denoted simply as |φ i|ψi. Note that this new state is a unit vector, as it should be. Not every pure state in Cmn can be expresse ...
... where [n] denotes the set {1, . . . , n} and the vectors |i, ji = |ii ⊗ | ji form an orthonormal basis for Cmn . This tensor product of states |φ i and |ψi is also often denoted simply as |φ i|ψi. Note that this new state is a unit vector, as it should be. Not every pure state in Cmn can be expresse ...
Shor`s Algorithm and Factoring: Don`t Throw Away the Odd Orders
... reduced totient function λ(N ). Alternate classical methods can use this information to factor. For example, Pollard’s (p − 1) algorithm [3] can be run using this knowledge to insure the large prime factor does not divide the order of the element used. The resulting element is guaranteed to have a ...
... reduced totient function λ(N ). Alternate classical methods can use this information to factor. For example, Pollard’s (p − 1) algorithm [3] can be run using this knowledge to insure the large prime factor does not divide the order of the element used. The resulting element is guaranteed to have a ...
Majorana returns - MIT Center for Theoretical Physics
... language of quantum field theory. In quantum field theory, if a given field φ creates the particle A (and destroys its antiparticle Ā), the complex conjugate φ* will create Ā and destroy A. Particles that are their own antiparticles must be associated with fields obeying φ = φ*, that is, real fields ...
... language of quantum field theory. In quantum field theory, if a given field φ creates the particle A (and destroys its antiparticle Ā), the complex conjugate φ* will create Ā and destroy A. Particles that are their own antiparticles must be associated with fields obeying φ = φ*, that is, real fields ...
On Some Classical and Quantum Effects Due to Gravitational Fields
... this region the electromagnetic field vanishes. This phenomenon has come to be called Aharonov-Bohm effect[5]. The analogue of the electromagnetic Aharonov-Bohm effect set up is the background space-time of a cosmic string[1]-[3] in which the geometry is flat everywhere apart from a symmetry axis. I ...
... this region the electromagnetic field vanishes. This phenomenon has come to be called Aharonov-Bohm effect[5]. The analogue of the electromagnetic Aharonov-Bohm effect set up is the background space-time of a cosmic string[1]-[3] in which the geometry is flat everywhere apart from a symmetry axis. I ...
Fano-Feshbach resonances in two
... Starting from the fact that in scattering systems EPs give rise to a second order pole in the Green’s function, in addition to the usual first order pole, we have investigated the impact on the shape of the scattering cross section as one approaches the EP. We have demonstrated that the merging of t ...
... Starting from the fact that in scattering systems EPs give rise to a second order pole in the Green’s function, in addition to the usual first order pole, we have investigated the impact on the shape of the scattering cross section as one approaches the EP. We have demonstrated that the merging of t ...
Document
... With or without the cut-off assumption, the properties of the equation depend heavily on γ. It is customary to speak of hard potentials for s > 5 (i.e. γ > 0), and soft potentials for 2 ≤ s < 5 (i.e. −3 ≤ γ < 0). The special cases, s = 5 and s = 2, are called respectively the Maxwellian and Coulomb ...
... With or without the cut-off assumption, the properties of the equation depend heavily on γ. It is customary to speak of hard potentials for s > 5 (i.e. γ > 0), and soft potentials for 2 ≤ s < 5 (i.e. −3 ≤ γ < 0). The special cases, s = 5 and s = 2, are called respectively the Maxwellian and Coulomb ...