Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 63 for “"Correlated systems"”.
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Holography and strongly correlated systems
… gain new insights into the physics of strongly correlated systems.
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SPIN-ORBIT COUPLING IN STRONGLY CORRELATED SYSTEMS
… spin-orbit enhancement in a strongly correlated two-dimensional system. By our calculation, it is shown that a possible nonlinear Rashba effect can emerge in such a system. It can explain the presence of giant Rashba constants in some two-dimensional devices.
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Exact Diagonalization Studies of Strongly Correlated Systems
… exact diagonalization to study a few strongly correlated systems, ranging from the Fermi-Hubbard model to the fractional quantum Hall effect (FQHE). The discussion starts with an overview of strongly correlated systems and what is meant by strongly correlated. Then, we extend cluster …
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The Gutzwiller variational method for strongly correlated systems
… the applications of the method to two specific correlated electron systems of current interest: (i) the spinless fermion model with non-local Coulomb interaction in one dimension and (ii) the pressure-induced insulator-metal transition in the colossal magneto-resistive compound LaMnO3. Our …
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Strongly Correlated Systems Approach Through Quantum Monte Carlo
Finally, we explore three algorithms for speeding up the calculation of determinant ratios specifically for insulators. These algorithms take advantage both of the locality of physics and the sparsity of the matrices that are used in the quantum wave functions that represent these insulators.
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Duality and strongly correlated systems in two dimensions
… in condensed matter physics involve strongly correlated systems near quantum critical points in two spatial dimensions. Examples range from the sharing of critical exponents (superuniversality) among quantum Hall plateau transitions to the emergence of a charge-vortex symmetry near the …
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Electronic conduction and noise in strongly correlated systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1996.
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Liouville resolvent methods applied to highly correlated systems
… (LRM) to two hamiltonians used to model highly correlated systems: Falicov-Kimball and Anderson Lattice. We calculate specific heats, magnetic susceptibilities, thermal averages of physical operators, and energy bands. We demonstrate that the LRM is a viable method for investigating many body …
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Two-particle level diagrammatic approaches for strongly correlated systems
… numerical methods for the treatment of strongly correlated electron systems based on self-consistent approaches at both the one and the two-particle level such as the parquet formalism. The parquet formalism was solved for the first time on a two-dimensional cluster. When the fully irreducible …
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Statistical Analysis of Highly Correlated Systems in Biology and Physics
I have also used Path Integral Monte Carlo techniques to explore the limit of rapid rotations, where the Gross-Pitaevskii equation is no longer valid. Interestingly, the Gross-Pitaevskii equation seems to be valid for much higher densities than expected if properly renormalized. I show that, in …
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Statistical Analysis of Highly Correlated Systems in Biology and Physics
Submitted by Meng Tao (mengtao2@illinois.edu) on 2012-10-12T22:03:15Z No. of bitstreams: 1 GarciaMartin.pdf: 30489995 bytes, checksum: 27fdbef0822be585645602778f7be777 (MD5)
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Nonlinear filtering of high dimensional, chaotic, multiple timescale correlated systems
… high dimensional, chaotic, multiple timescale correlated systems. The research is motivated by problems in the geosciences, in particular oceanic or atmospheric estimation and climate prediction. As the capability and need to further resolve the physics models on finer scales continues, greater …
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Aspects of transport in strongly correlated systems with gravity duals
… duality to study transport in strongly coupled systems. The main content is organized in three parts. In the first part we investigate the interrelation between dimensionality and strength of interactions. It is known that the dynamics of systems in Condensed Matter and General Relativity …
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Efficient Fock Space Configuration Interaction Approaches For Large Strongly Correlated Systems
… the magnetic couplings present in these types of systems, they are often multiconfigurational in nature, making them difficult to model with tradi- tional single-reference approaches. Methods to handle these types of strongly correlated systems have been developed but often have significant …
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Density Matrix Renormalization Group Studies of Strongly Correlated Systems in Low Dimensions
… is a powerful numerical method for strongly correlated systems, which often cannot be solved analytically either by the mean field approach or through perturbation. The DMRG is originally proposed as an iterative search of the ground state in one dimension. With more researchers involving in …
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Equilibrium and non-equilibrium phenomena in two- and three-dimensional correlated systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1996.
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Examination of model uncertainty and parameter sensitivity in correlated systems using covariance structure analysis
Correlated parameters are often expected when modeling a natural system. However, correlation among the variables often blurs the model uncertainty and makes it difficult to determine parameter sensitivity. In simple systems, model structure and uncertainty can be explained directly; however, …
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Molecular Dynamics Investigation of the Thermodynamics of Nanoscale Droplets and Kinetics of Weakly Correlated Systems
… of inertia. The driving force is indefinitely correlated but much weaker than “random” fluctuations from the environment. From this study, it is shown that the environmental influence is not fully random leading to the force autocorrelation function being a poor metric for detecting the …
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PRECISION MEASUREMENT TO STUDY STRONGLY CORRELATED SYSTEMS-FROM A SINGLE ION TO PHONONS IN AN ION CHAIN
Emulation of isolated strongly correlated quantum many-body systems has been a subject of intense experimental and theoretical research in recent years. Trapped ions are well-controlled quantum systems and the ideal choice for studying the strongly correlated systems to unfold the correlated …
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