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- Douglas J Grzetic, Robert A. Wickham, An-Chang Shi
- The Journal of chemical physics
- 2014

We develop a self-consistent field theory for particle dynamics by extremizing the functional integral representation of a microscopic Langevin equation with respect to the collective fields.â€¦ (More)

We systematically investigate the microdomain morphologies that self-assemble in a diblock copolymer melt confined to a narrow cylindrical nanopore using real-space self-consistent mean-field theory.â€¦ (More)

- Bing Miao, Robert A. Wickham
- The Journal of chemical physics
- 2008

We examine the effect of composition fluctuations on the stability of the orthorhombic Fddd network phase in the diblock copolymer melt phase diagram within the self-consistent Hartree approximationâ€¦ (More)

The vortex-vortex and vortex-antivortex correlation functions are determined for the two-dimensional O(2) model undergoing phase ordering. We find reasonably good agreement with simulation resultsâ€¦ (More)

The nucleation of a droplet of stable cylinder phase from a metastable lamellar phase is examined within the single-mode approximation to the mean-field Landauâ€“Brazovskii model for diblock copolymerâ€¦ (More)

The theory of phase ordering kinetics for the O(2) model using the gaussian auxiliary field approach is reexamined from two points of view. The effects of fluctuations about the ordering field areâ€¦ (More)

- Russell K W Spencer, Paul F Curry, Robert A. Wickham
- The Journal of chemical physics
- 2016

We examine nucleation of the stable body-centred-cubic (BCC) phase from the metastable uniform disordered phase in an asymmetric diblock copolymer melt. Our comprehensive, large-scale simulations ofâ€¦ (More)

- Robert A. Wickham, F. Mazenko
- 2008

The gaussian closure approximation previously used to study the growth kinetics of the non-conserved O(n) model is shown to be the zeroth-order approximation in a well-defined sequence ofâ€¦ (More)

- Shun Lu, Maximiliano Giuliani, H Benjamin Harvey, Lori L Burrows, Robert A. Wickham, John R Dutcher
- Biophysical journal
- 2015

Type IV pili (T4P) are very thin protein filaments that extend from and retract into bacterial cells, allowing them to interact with and colonize a broad array of chemically diverse surfaces. Theâ€¦ (More)

The theory of growth kinetics developed previously is extended to the asymmetric case of off-critical quenches for systems with a conserved scalar order parameter. In this instance the new parameterâ€¦ (More)

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