Quantum Spacetime without Observers: Ontological
... order: While we have omitted many technical details and problems from our schematic description of the \Dirac constraint quantization" of gravity, these problems either do not concern, or are consequences of, the main conceptual problems of canonical quantum gravity. Other approaches, such as the ca ...
... order: While we have omitted many technical details and problems from our schematic description of the \Dirac constraint quantization" of gravity, these problems either do not concern, or are consequences of, the main conceptual problems of canonical quantum gravity. Other approaches, such as the ca ...
Wave transport and statistical properties of an time symmetry
... at the same time put our model into the general framework of PT invariance. In the same section we also discuss how a particular device should be designed to ensure PT symmetry and thereby real eigenvalues and ballistic transport. Section III presents an application to a planar microwave resonator, ...
... at the same time put our model into the general framework of PT invariance. In the same section we also discuss how a particular device should be designed to ensure PT symmetry and thereby real eigenvalues and ballistic transport. Section III presents an application to a planar microwave resonator, ...
Deutsch`s Algorithm
... • Computational complexity of DFT: requires N 2 steps • DFTs are important --> a lot of work in optical computing (1950s, 1960s) to do fast DFTs • 1965: Tukey and Cooley invent the Fast Fourier Transform (FFT), requires N logN steps • FFT much faster --> optical computing almost dies overnight ...
... • Computational complexity of DFT: requires N 2 steps • DFTs are important --> a lot of work in optical computing (1950s, 1960s) to do fast DFTs • 1965: Tukey and Cooley invent the Fast Fourier Transform (FFT), requires N logN steps • FFT much faster --> optical computing almost dies overnight ...
Quantum electrical transport in samples of limited
... The ability to make electrically conducting structures of ever smaller size by nanofabrication techniques ~the playground of mesoscopic physics! has brought with it entry into a wonderful new range of unexpected quantum phenomena. Interpretation of these phenomena requires full recognition of the wa ...
... The ability to make electrically conducting structures of ever smaller size by nanofabrication techniques ~the playground of mesoscopic physics! has brought with it entry into a wonderful new range of unexpected quantum phenomena. Interpretation of these phenomena requires full recognition of the wa ...
Journal of Babylon University/Pure and Applied Sciences/ No.(6
... chain of algebras can be found, the representations of each of these algebras can be used to label states with appropriate quantum numbers. This is because the states can be chosen that transform as the representations of each algebra. For applications to nuclei the chain of algebras must contain th ...
... chain of algebras can be found, the representations of each of these algebras can be used to label states with appropriate quantum numbers. This is because the states can be chosen that transform as the representations of each algebra. For applications to nuclei the chain of algebras must contain th ...
MODEL POTENTIALS FOR ALKALI METAL ATOMS AND Li
... radial coordinate, is to simulate the multi-electron core interaction with the single valence electron by an analytic modification of the Coulomb potential, such that ...
... radial coordinate, is to simulate the multi-electron core interaction with the single valence electron by an analytic modification of the Coulomb potential, such that ...
The integer quantum Hall effect and Anderson localisation
... The existence of the integer quantum Hall effect (IQHE) depends crucially on Anderson localisation, and, conversely, many aspects of the delocalisation transition have been studied in most detail in quantum Hall systems. The following article is intended to provide a introduction to the IQHE from th ...
... The existence of the integer quantum Hall effect (IQHE) depends crucially on Anderson localisation, and, conversely, many aspects of the delocalisation transition have been studied in most detail in quantum Hall systems. The following article is intended to provide a introduction to the IQHE from th ...
Factorization Method and the Position
... very concept of a PDM system is a fundamental problem which is far from being completely understood. Many contributions have been developed over the last years in different approaches [8–19]. In the quantum mechanical regime, it is well known that an ambiguity in ordering of the mass and the momentum ...
... very concept of a PDM system is a fundamental problem which is far from being completely understood. Many contributions have been developed over the last years in different approaches [8–19]. In the quantum mechanical regime, it is well known that an ambiguity in ordering of the mass and the momentum ...
2010
... fluctuation-dissipation theorem. In this study, we validate our technique for determining the compressibility by applying it to the ideal Fermi gas [1, 2]. In future work, it could be extended to interesting many-body phases in optical lattices which are distinguished by their incompressibility inclu ...
... fluctuation-dissipation theorem. In this study, we validate our technique for determining the compressibility by applying it to the ideal Fermi gas [1, 2]. In future work, it could be extended to interesting many-body phases in optical lattices which are distinguished by their incompressibility inclu ...
Lecture 8: The fractional quantum Hall effect The fractional quantum
... and could be expected to cost some extra energy, which on dimensional grounds would be expected to be of the order of e2 /lM (in cgs units). This can be evaluated by calculating the appropriate averages of (ri − rj )−1 etc., with the result that it is ∼ 0.025 e2 /l for a quasihole and ∼ 0.075 e2 / ...
... and could be expected to cost some extra energy, which on dimensional grounds would be expected to be of the order of e2 /lM (in cgs units). This can be evaluated by calculating the appropriate averages of (ri − rj )−1 etc., with the result that it is ∼ 0.025 e2 /l for a quasihole and ∼ 0.075 e2 / ...
Physics 51
... EVALUATE: Va V1a V2a 180V. Vb V1b V2b 315V. Vb Va . The negatively charged electron gains kinetic energy when it moves to higher potential. ...
... EVALUATE: Va V1a V2a 180V. Vb V1b V2b 315V. Vb Va . The negatively charged electron gains kinetic energy when it moves to higher potential. ...
Hydrogen atom
A hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force. Atomic hydrogen constitutes about 75% of the elemental (baryonic) mass of the universe.In everyday life on Earth, isolated hydrogen atoms (usually called ""atomic hydrogen"" or, more precisely, ""monatomic hydrogen"") are extremely rare. Instead, hydrogen tends to combine with other atoms in compounds, or with itself to form ordinary (diatomic) hydrogen gas, H2. ""Atomic hydrogen"" and ""hydrogen atom"" in ordinary English use have overlapping, yet distinct, meanings. For example, a water molecule contains two hydrogen atoms, but does not contain atomic hydrogen (which would refer to isolated hydrogen atoms).