Quantum Expanders: Motivation and Constructions
... are at most 1, and that the completely mixed state I˜ = I/|V | is an eigenvector of any such E, with corresponding eigenvalue 1. We say that such a super-operator E has a 1 − λ spectral gap if all the remaining singular values of E are smaller than λ . This is analogous to the way regular, directed ...
... are at most 1, and that the completely mixed state I˜ = I/|V | is an eigenvector of any such E, with corresponding eigenvalue 1. We say that such a super-operator E has a 1 − λ spectral gap if all the remaining singular values of E are smaller than λ . This is analogous to the way regular, directed ...
Chapter 4
... We sought to recruit five students from each of the four modern physics offerings at the University of Colorado from a single academic year (immediately following the studies described ...
... We sought to recruit five students from each of the four modern physics offerings at the University of Colorado from a single academic year (immediately following the studies described ...
A quantum logical and geometrical approach to the study of
... system兲 are in correspondence with closed subspaces of Hilbert space H. The set of subspaces C共H兲 with the partial order defined by set inclusion 債, intersection of subspaces 艚 as the lattice meet, closed linear spam of subspaces 丣 as the lattice join, and orthocomplementation ¬ as lattice complemen ...
... system兲 are in correspondence with closed subspaces of Hilbert space H. The set of subspaces C共H兲 with the partial order defined by set inclusion 債, intersection of subspaces 艚 as the lattice meet, closed linear spam of subspaces 丣 as the lattice join, and orthocomplementation ¬ as lattice complemen ...
10 Time Reversal Symmetry in Quantum Mechanics
... If x → x, p → −p under time reversal, then this commutation relation no longer holds. How to solve this problem? It was realized by Wigner that in quantum mechanics, time reversal has to be defined in a very special way different from all other symmetries. Time reversal operator is anti-unitary: it ...
... If x → x, p → −p under time reversal, then this commutation relation no longer holds. How to solve this problem? It was realized by Wigner that in quantum mechanics, time reversal has to be defined in a very special way different from all other symmetries. Time reversal operator is anti-unitary: it ...
Fault-Tolerant Quantum Computation and the Threshold Theorem
... can be made, but it is important to know what current methods can and cannot deal with. Of course it is a matter of physics and of engineering to determine which assumptions actually matter. Noise Model A particular model (or models) of noise is assumed for all proofs and heuristic methods for the t ...
... can be made, but it is important to know what current methods can and cannot deal with. Of course it is a matter of physics and of engineering to determine which assumptions actually matter. Noise Model A particular model (or models) of noise is assumed for all proofs and heuristic methods for the t ...
無投影片標題 - Shaw Communications
... particle that resembles our normal, everyday particles in every property. From the mass, size to even how it reacts with other particles. Everything is exactly the same, except the charge of the particle. A normal particle with a positive charge would have an antiparticle of a negative charge. ...
... particle that resembles our normal, everyday particles in every property. From the mass, size to even how it reacts with other particles. Everything is exactly the same, except the charge of the particle. A normal particle with a positive charge would have an antiparticle of a negative charge. ...
Many-Body effects in Semiconductor Nanostructures Stockholm University Licentiat Thesis
... The effects of an applied magnetic field to a QD are of great importance when manufacturing spintronic devices, and are also discussed in the thesis. In paper II, experimental results by Meunier on an elliptical QD with a tilted magnetic field, [5], are compared to theoretical results. These atom-li ...
... The effects of an applied magnetic field to a QD are of great importance when manufacturing spintronic devices, and are also discussed in the thesis. In paper II, experimental results by Meunier on an elliptical QD with a tilted magnetic field, [5], are compared to theoretical results. These atom-li ...
Quantum Galvanometer by Interfacing a Vibrating Nanowire and
... interacting with the hyperfine transitions of the atoms. Atoms transferred to untrapped states are detected by a single-atom detector.22 ...
... interacting with the hyperfine transitions of the atoms. Atoms transferred to untrapped states are detected by a single-atom detector.22 ...
Quantum Decoherence and the - Philsci
... phase space region, on the so-called standard measure. Why does using this measure and this distribution produce successful predictions, and how can they be derived from the underlying dynamics? So far, attempts to derive the classical probability distribution from the underlying classical dynamics, ...
... phase space region, on the so-called standard measure. Why does using this measure and this distribution produce successful predictions, and how can they be derived from the underlying dynamics? So far, attempts to derive the classical probability distribution from the underlying classical dynamics, ...
Optical and Quantum Communications—J. H. Shapiro, N. C. Wong
... We are embarked on research in the area of quantum information technology whose goal is to enable the quantum-mechanical information transmission, storage, and processing needed for future applications in quantum computing and quantum communication. Our theoretical work in this area has focused on a ...
... We are embarked on research in the area of quantum information technology whose goal is to enable the quantum-mechanical information transmission, storage, and processing needed for future applications in quantum computing and quantum communication. Our theoretical work in this area has focused on a ...
