Research of Edward H. Feng

 

Edward H. Feng

Sandia National Laboratory, Livermore, California

certified statistical mechanic since 2003

2003, Ph.D. Chemical Engineering, Stanford University
1999, B.A. Chemical Engineering, Rice University



Research Interests
  • statistical mechanics far from equilibrium; applications to single molecule experiments
  • vibrations of carbon nanotubes
  • quantitative understanding of sports, The Power Rank
  • polymer physics
  • computer algorithms for stochastic simulations

Technical Summary of Research Accomplishments

Papers

Statistical Mechanics Far From Equilibrium:
  • not too technical introduction to the Crooks Fluctuation Theorem and Jarzynski's equality: entropyman.org.
  • "Far-From-Equilibrium Measurements of Thermodynamic Length", E.H. Feng, G.E. Crooks, Phys. Rev. E, 79, 012104, 2009.
  • "The length of time's arrow", E.H. Feng, G.E. Crooks, Phys. Rev. Lett., 101, 090602, 2008.
  • "The Role of Collective Motion in Examples of Coarsening and Self-Assembly", S. Whitelam, E.H. Feng, M.F. Hagan, P.L. Geissler, Soft Matter, 5, 1251, 2009.
Polymer Physics:
  • "Effect of Ion Distribution on Conductivity of Block Copolymer Electrolytes", E. Gomez, A. Panday, E.H. Feng,..., N.P. Balsara, Nano Letters, 9, 1212, 2009.
  • "Supramolecular Diblock Copolymers: A Field-Theoretic Model and Mean-Field Solution", E.H. Feng, W.B. Lee and G.H. Fredrickson. Macromolecules, 40, 693-702, 2007. pdf.
  • "Confinement of Equilibrium Polymers: A Field-Theoretic Model and Mean-Field Solution", E.H. Feng and G.H. Fredrickson. Macromolecules, 39, 2364-2372, 2006. pdf.

Kinetic Theory of Liquids:
  • "A Diagrammatic Kinetic Theory for a Lattice Model of a Liquid: I. Theory," E.H. Feng and H.C. Andersen, J. Chem. Phys., 121 (8): 3582-3597, 2004. pdf.
  • "A Diagrammatic Kinetic Theory for a Lattice Model of a Liquid: II. Comparison of Theory and Simulation Results," E.H. Feng and H.C. Andersen, J. Chem. Phys., 121 (8): 3598-3604, 2004. pdf.
The main references for the kinetic theory papers are four papers by Hans (and Madhav): 1, 2, 3, 4.

Teaching

Group meeting notes:
These notes are intended for first year graduate students who have a background in stat mech (so ideas like equilibrium distribution and random variable make sense).
  • Markov chains and Monte Carlo algorithms: pdf.
  • Markov jump processes: pdf.
  • Fast Fourier Transform: pdf.
The notes on Markov jump processes or continuous time Markov processes are the key to understanding the often used and abused continuous time Monte Carlo simulation.

These are slides from a talk introducing self-consistent field theory calculations for block copolymer self-assembly. pdf

These notes cover the basic principles underlying self-consistent field theory calculations for polymer self-assembly.
  • Discrete Fourier Transform: pdf.
  • Solving Modified Diffusion Equation: pdf.
  • Properties of the Single Chain Partition Function: pdf.
Notes on the freely jointed chain model of polymers.pdf

UCSB, Winter 2005: Che210B class webpage.

What have a done as a statistical mechanic?
Linux on an ibook.
Computer hints.


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