Advancements in the Path Integral Monte Carlo Method for Many -Body Quantum Systems at Finite Temperature
Esler, Kenneth Paul
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https://hdl.handle.net/2142/80537
Description
Title
Advancements in the Path Integral Monte Carlo Method for Many -Body Quantum Systems at Finite Temperature
Author(s)
Esler, Kenneth Paul
Issue Date
2006
Doctoral Committee Chair(s)
Ceperley, David M.
Department of Study
Physics
Discipline
Physics
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, Fluid and Plasma
Language
eng
Abstract
After describing these advancements in methodology, we apply our new technology to fluid sodium near its liquid-vapor critical point. In particular, we explore the microscopic mechanisms which drive the continuous change from a dense metallic liquid to an expanded insulating vapor above the critical temperature. We show that the dynamic aggregation and dissociation of clusters of atoms play a significant role in determining the conductivity and that the formation of these clusters is highly density and temperature dependent. Finally, we suggest several avenues for research to further improve our simulations.
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