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Showing 1 to 13 of 13 for “"schroedinger equation"”.
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Application of the Relativistic Schroedinger Equation to the Bootstrap Problem
Made available in DSpace on 2015-05-12T21:41:49Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6910643.PDF: 1447477 bytes, checksum: 79b65d28e2abd4b24f634d66b3484114 (MD5) Previous issue date: 1968
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On Initial-Boundary Value Problems for the Nonlinear Schroedinger Equation and the Ginzburg-Landau Equation
… of the forced nonlinear Schrodinger equation (NLS) is shown in Chapter 1. The global solution to an initial-boundary value problem for the NLS is proved in Chapter 2. Global existence of the full-line problem for the Ginzburg-Landau equation (GL) is shown in Chapter 3. In Chapter 4, …
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The Relativistic Schroedinger Equation and Its Application to Pseudoscalar Meson-Baryon Scattering in a Broken Su(3) Symmetry Model
Made available in DSpace on 2015-05-12T21:41:45Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6808131.PDF: 5861811 bytes, checksum: 39c3c6e8dd97a64c10221fb8db32ea15 (MD5) Previous issue date: 1967
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Perturbation theory of two particle bound states in QED for particles of spin ��� 1
… approach to solving the Bethe-Salpeter equation for the hydrogen atom to the case of any two particles of spin ≤ 1. In order to preserve the same general form of Salpeter's scheme the Kemmer-Duffin equations are used to describe the spin 1 or spin 0 particleso The general method involves …
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Localization properties of nonlinear disordered lattices
… of Anderson Localization, the Discrete Nonlinear Schroedinger Equation and its properties as well as the generalization of this model by introducing the nonlinear index α. In Part II, the spreading behavior of initially localized states in large, disordered chains due to nonlinearity is studied. …
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Leakage gate current in a heterostructure field effect transistor
… by a self consistent solution to the Poisson and Schroedinger equations. The transmission coefficient for 2-D and 3-D tunneling currents is obtained by solving the Schroedinger equation; The leakage gate currents are obtained as a function of the gate voltage for the AlI-nAs/GaInAs and AlGaAs/GaAs …
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Finite element solution of the S-limit Schrodinger equation of helium
The Schroedinger equation, for all but the simplest systems, is an elliptic partial differential equation. Almost every method of solution is based on the expansion of the unknown solution in terms of a set of known global functions. Only a few calculations, using strictly numerical techniques …
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Contraction analysis of nonlinear systems
… properties of physical partial differential equations such as the heat equation, or the Schroedinger equation. Lyapunov exponents are not coordinate-invariant, and thus their exact physical meaning is somewhat questionable. As an alternative, we suggest an extension of linear eigenvalue …
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The wave function of the universe
… as wave function solutions to a zero-energy Schroedinger equation that is hyperbolic in its second derivatives of spatial geometries and matter-fields. In order to select one wave function (that would in principle correspond to our Universe) out of infinitely many, requires an appropriate …
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Chaotic diffusion in nonlinear Hamiltonian systems
… methods. Furthermore, the nonlinear diffusion equation is introduced as a phenomenologic description of the spreading process and a number of predictions on the density dependence of the spreading are drawn from this equation. Two mathematical techniques for analyzing nonlinear Hamiltonian …
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Spectral Optimization Problems Controlling Wave Phenomena
… the PDE constraint is a time-independent wave equation and the objective function governs some aspect of wave motion. We consider the shape optimization of functions of Dirichlet-Laplacian eigenvalues associated with the set of star-shaped, symmetric, bounded planar regions with smooth …
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Backflow and pairing wave function for quantum Monte Carlo methods
Quantum Monte Carlo (QMC) methods are a class of stochastic techniques that can be used to compute the properties of electronic systems accurately from first principles. This thesis is mainly concerned with the development of trial wave functions for QMC. An extension of the backflow transformation …