EXCHANGE CONTRIBUTIONS TO SPIN POLARIZATION IN LOW
... In these asymptotic forms, k = √ 2€ +α2ε2 denotes the momentum of the incident electron and jl(kr) and nl(kr) are the spherical Bessel and Neumann functions, respectively. In Eq. (7) l 1 ± 1, where the upper sign is taken for n < O and the lower one for n > 0. In the present work, we calculate phase ...
... In these asymptotic forms, k = √ 2€ +α2ε2 denotes the momentum of the incident electron and jl(kr) and nl(kr) are the spherical Bessel and Neumann functions, respectively. In Eq. (7) l 1 ± 1, where the upper sign is taken for n < O and the lower one for n > 0. In the present work, we calculate phase ...
Spin quantum computation in silicon nanostructures
... evolution of quantum mechanics. It implies that a computer made up of entirely quantum mechanical parts (qubits), whose evolution is governed by quantum mechanics, would be able to carry out prime factorization of large numbers that is prohibitively time-consuming in classical computation, thus revo ...
... evolution of quantum mechanics. It implies that a computer made up of entirely quantum mechanical parts (qubits), whose evolution is governed by quantum mechanics, would be able to carry out prime factorization of large numbers that is prohibitively time-consuming in classical computation, thus revo ...
Quantum Computational Complexity in Curved Spacetime
... a Poincare transformation. This group-theoretic definition embodies the invariance of physical laws under special relativity1 . Because spin emerges from a relativistic concept, any spinbased representation of quantum information is subject to a direct coupling to classical gravitational fields as d ...
... a Poincare transformation. This group-theoretic definition embodies the invariance of physical laws under special relativity1 . Because spin emerges from a relativistic concept, any spinbased representation of quantum information is subject to a direct coupling to classical gravitational fields as d ...
pdf - Martijn Wubs
... propagation and control of light in new and often counterintuitive ways. These man-made structures are composed of strongly subwavelength unit cells, with effective dielectric parameters often not occurring in nature, such as a negative refractive index [1,2]. Unlike in classical optics, the possibl ...
... propagation and control of light in new and often counterintuitive ways. These man-made structures are composed of strongly subwavelength unit cells, with effective dielectric parameters often not occurring in nature, such as a negative refractive index [1,2]. Unlike in classical optics, the possibl ...
Quantum Dimer Models on the Square Lattice
... the mechanism behind high Tc superconductivity. It is believed that high temperature cuprate superconductors are obtained by doping antiferromagnets with holes or electrons. ...
... the mechanism behind high Tc superconductivity. It is believed that high temperature cuprate superconductors are obtained by doping antiferromagnets with holes or electrons. ...
How Classical Particles Emerge From the Quantum World
... in which the spatial part is a simple product state. Clearly, this state does not obey the anti-symmetrization postulate, and from a fundamental point of view it therefore cannot be right. It is true that as long as we only consider observables that commute with position, we shall not arrive at any ...
... in which the spatial part is a simple product state. Clearly, this state does not obey the anti-symmetrization postulate, and from a fundamental point of view it therefore cannot be right. It is true that as long as we only consider observables that commute with position, we shall not arrive at any ...
Loop quantum gravity and Planck
... Another important feature of LQG is that it is the most serious attempt to perform a full non-perturbative quantization of the gravitational field by itself. It is an attempt to answer the following question: can we quantize the gravitational degrees of freedom without considering matter on the firs ...
... Another important feature of LQG is that it is the most serious attempt to perform a full non-perturbative quantization of the gravitational field by itself. It is an attempt to answer the following question: can we quantize the gravitational degrees of freedom without considering matter on the firs ...
Turing Machine
... Turing in 1936 in order to address Hilbert's Entscheidungsproblem. It is sufficiently simple so that various mathematical theorems can be proven about it. In particular by using this model Turing was able to show that the Entscheidungsproblem must be answered in negative, i.e., there is no mechanica ...
... Turing in 1936 in order to address Hilbert's Entscheidungsproblem. It is sufficiently simple so that various mathematical theorems can be proven about it. In particular by using this model Turing was able to show that the Entscheidungsproblem must be answered in negative, i.e., there is no mechanica ...
Inherent Properties and Statistics with Individual Particles in
... (with Ck denoting the number of cells in the kth frequency range, and Nk the particles that lie in region k). Such a breakdown is, in turn, entirely determined by the fact that the equilibrium measure is continuous in classical phase space, and discrete in Hilbert space. This is to say, roughly put, ...
... (with Ck denoting the number of cells in the kth frequency range, and Nk the particles that lie in region k). Such a breakdown is, in turn, entirely determined by the fact that the equilibrium measure is continuous in classical phase space, and discrete in Hilbert space. This is to say, roughly put, ...
First Reading Assignment
... These ideas require no mathematics, but they are not easy and demand careful teaching, preferably using inquiry techniques. One misunderstanding to watch for is the notion that the classical electromagnetic field theory of light is now replaced by a new theory in which light is a stream of particles ...
... These ideas require no mathematics, but they are not easy and demand careful teaching, preferably using inquiry techniques. One misunderstanding to watch for is the notion that the classical electromagnetic field theory of light is now replaced by a new theory in which light is a stream of particles ...
Generation of nonclassical states from thermal radiation
... maximum rate of 160,000 frames per second. Each sequence of frames is then transferred to a personal computer where the areas of the pulses are measured and their statistic distributions are analyzed in real time. If a narrow temporal gate with the laser pulses is used, the typical rate of state pre ...
... maximum rate of 160,000 frames per second. Each sequence of frames is then transferred to a personal computer where the areas of the pulses are measured and their statistic distributions are analyzed in real time. If a narrow temporal gate with the laser pulses is used, the typical rate of state pre ...
Phys. Rev. Lett., 105(2) - Orenstein Research Group
... free electrons. While this theory has been successful in a wide variety of materials, it is now considered to be incomplete: it does not include physics resulting from the Berry phase of the Bloch wave functions. Berry phases result when a quantum-mechanical wave function changes smoothly as a funct ...
... free electrons. While this theory has been successful in a wide variety of materials, it is now considered to be incomplete: it does not include physics resulting from the Berry phase of the Bloch wave functions. Berry phases result when a quantum-mechanical wave function changes smoothly as a funct ...
supplementary notes on canonical quantization and application to a
... p = ∂L/∂ ṡ = mṡ; the Hamiltonian is H = p2 /2m; and the quantum theory is defined by the operators ŝ, p̂ and H = p̂2 /2m. In short the bead behaves like a free particle on a line. It experiences no forces due to the curving of the wire. We can dress up this problem a little by adding gravity. Su ...
... p = ∂L/∂ ṡ = mṡ; the Hamiltonian is H = p2 /2m; and the quantum theory is defined by the operators ŝ, p̂ and H = p̂2 /2m. In short the bead behaves like a free particle on a line. It experiences no forces due to the curving of the wire. We can dress up this problem a little by adding gravity. Su ...
Bell's theorem
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Bell's theorem is a ‘no-go theorem’ that draws an important distinction between quantum mechanics (QM) and the world as described by classical mechanics. This theorem is named after John Stewart Bell.In its simplest form, Bell's theorem states:Cornell solid-state physicist David Mermin has described the appraisals of the importance of Bell's theorem in the physics community as ranging from ""indifference"" to ""wild extravagance"". Lawrence Berkeley particle physicist Henry Stapp declared: ""Bell's theorem is the most profound discovery of science.""Bell's theorem rules out local hidden variables as a viable explanation of quantum mechanics (though it still leaves the door open for non-local hidden variables). Bell concluded:Bell summarized one of the least popular ways to address the theorem, superdeterminism, in a 1985 BBC Radio interview: