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.
Results
Showing 1 to 8 of 8 for “"dynamical correlation"”.
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Tunneling Systems in Condensed Phases: Quantum Dynamical Monte Carlo and Analytical Theories
… coherence phenomenon in Josephson junctions. A dynamical correlation function for the latter shows a plateau indicative of the localization effects of damping.
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Electron-proton nonadiabaticity: characterization and development of non-Born-Oppenheimer electronic structure methods
… which lacked sufficient electron-proton dynamical correlation, leading to overlocalized nuclear densities. Subsequent efforts focused on the development of explicitly correlated NEO approaches which, although accurate, were too computationally intractable to be practical for the study of …
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Aging processes in complex systems
… glassy-like dynamics. In many systems a single dynamical length L(t), that grows as a power-law of time t or, in much more complicated cases, as a logarithmic function of t, governs the dynamics out of equilibrium. In the aging or dynamical scaling regime, these systems are best characterized by …
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Spin Systems far from Equilibrium: Aging and Dynamic Phase Transition
… quenched to low temperatures. The time-dependent dynamical correlation length L(t) is determined numerically and the scaling behavior of various two-time quantities as a function of L(t)/L(s) is discussed where t and s are two different times. For disordered Ising models deviations of L(t) from …
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DEVELOPMENT OF ALGORITHMS FOR CLASSICAL AND SEMICLASSICAL DYNAMICS
… regarding the significance of atom-atom correlations, this research introduces novel concepts and algorithms aimed at discerning whether or not a molecule is composed of a collection of approximately independent vibrating fragments. Specifically, from a time-dependent perspective, the …
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Exploration and Optimization of the One- and Many-particle Basis Sets in Modern Explicitly Correlated Electronic Structure
… distances in order to yield accurate electron correlation energies in molecules. Practical and robust explicitly correlated F12 methods require the use of standard or specialized atomic orbital (AO) basis sets that include diffuse AOs, even for neutral species. Although modern reduced-scaling …
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Aspects of population dynamics
… and changing environments that shape their dynamical behavior. Ecological systems can be modeled through relatively simple population dynamics models. There is a plethora of models describing deterministic models of ecological systems evolving in a constant environment. However, …
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AB-INITIO DYNAMICS IN STRONGLY INTERACTING MANY-BODY SYSTEMS
… key problem in modern physics due to the quantum correlations they develop, which result in highly nontrivial macroscopic phenomena which still defy our efforts of a thorough theoretical understanding, like quantum phase transitions, collective excitations, topological quantum order, and …