Quantum Monte Carlo studies of dense hydrogen and two-dimensional Bose liquids

Magro, William R.

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https://hdl.handle.net/2142/23495 Copy

Description

Title

Quantum Monte Carlo studies of dense hydrogen and two-dimensional Bose liquids

Author(s)

Magro, William R.

Issue Date

1994

Doctoral Committee Chair(s)

Ceperley, David M.

Department of Study

• Physics, Astronomy and Astrophysics
• Physics, Condensed Matter
• Physics, Fluid and Plasma

Discipline

• Physics, Astronomy and Astrophysics
• Physics, Condensed Matter
• Physics, Fluid and Plasma

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

Ph.D.

Degree Level

Dissertation

Keyword(s)

• Physics, Astronomy and Astrophysics
• Physics, Condensed Matter
• Physics, Fluid and Plasma

Language

eng

Abstract

Quantum Monte Carlo techniques; in their various incarnations, calculate ground state or finite temperature properties of many-body quantum systems. We apply the path-integral Monte Carlo method to hydrogen at densities and temperatures in the regime of cooperative thermal and pressure dissociation, relevant to structural models of the giant planets' interiors. We treat the protons and electrons as quantum particles, thereby avoiding the Born-Oppenheimer approximation. Fermi-Dirac exchange statistics are treated within the fixed-node approximation, with the nodes specified by the free Fermi gas. In the region of molecular dissociation, we observe properties consistent with and suggestive of a first order phase transition with positive density discontinuity $(n\sb{\rm H2}

Type of Resource

text

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http://hdl.handle.net/2142/23495

Copyright and License Information

Copyright 1994 Magro, William R.

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