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Classical Statistical Mechanics with Nested Sampling

  • Book
  • © 2017

Overview

  • Nominated as an outstanding PhD thesis by the University of Cambridge, UK
  • Enables the calculation of partition functions as explicit functions of temperature for realistic models of materials directly from atomic interactions
  • Allows the determination of complete phase diagrams and pressure–volume–temperature equations of state
  • Illustrates the efficiency of the algorithm which paves the way for the automated calculation of phase diagrams
  • Includes supplementary material: sn.pub/extras

Part of the book series: Springer Theses (Springer Theses)

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Table of contents (13 chapters)

  1. Statistical and Thermal Physics

  2. Nested Sampling

  3. Molecular Dynamics Nested Sampling

  4. Conclusion

Keywords

About this book

This thesis develops a nested sampling algorithm into a black box tool for directly calculating the partition function, and thus the complete phase diagram of a material, from the interatomic potential energy function. It represents a significant step forward in our ability to accurately describe the finite temperature properties of materials. In principle, the macroscopic phases of matter are related to the microscopic interactions of atoms by statistical mechanics and the partition function. In practice, direct calculation of the partition function has proved infeasible for realistic models of atomic interactions, even with modern atomistic simulation methods. The thesis also shows how the output of nested sampling calculations can be processed to calculate the complete PVT (pressure–volume–temperature) equation of state for a material, and applies the nested sampling algorithm to calculate the pressure–temperature phase diagrams of aluminium and a model binary alloy.

Authors and Affiliations

  • Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, United Kingdom

    Robert John Nicholas Baldock

About the author

Robert Baldock completed his doctoral studies in Physics at the University of Cambridge, UK, in the Theory of Condensed Matter Group in the Cavendish Laboratory (supervised by Dr Gábor Csányi and Prof Michael Payne FRS). He is currently a Postdoc at the École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland.

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