From 1ff6a02f86bf6d62f42aa35a223ae349dc8a8965 Mon Sep 17 00:00:00 2001 From: Jaron Kent-Dobias Date: Sat, 22 Feb 2020 15:53:49 -0500 Subject: Added some text and Cornell seal on front slide. --- aps_mm_2020.tex | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 79 insertions(+), 6 deletions(-) (limited to 'aps_mm_2020.tex') diff --git a/aps_mm_2020.tex b/aps_mm_2020.tex index 2adf567..5ecc099 100644 --- a/aps_mm_2020.tex +++ b/aps_mm_2020.tex @@ -1,15 +1,18 @@ \documentclass[fleqn,aspectratio=169]{beamer} +\renewcommand\vec[1]{\mathbf{#1}} + +\setbeamerfont{title}{family=\bf} \setbeamerfont{frametitle}{family=\bf} \setbeamerfont{normal text}{family=\rm} \setbeamertemplate{navigation symbols}{} \usepackage{textcomp,rotating} -\title{Cluster-flip colloidal and atomistic algorithms with background potentials} +\title{Cluster-flip colloidal \& atomistic algorithms with background potentials} \author{Jaron Kent-Dobias \and James P Sethna} -\institute{Cornell University} +\institute{\includegraphics[width=7em]{figs/bold_cornell_seal_black.pdf}} \date{} \begin{document} @@ -27,6 +30,14 @@ \begin{columns} \begin{column}{0.5\textwidth} + \begin{enumerate} + \item \alert<2>{Pick a symmetry transformation.} + \item \alert<3>{Pick a seed.} + \item \alert<4>{Transform the seed.} + \item \alert<5>{Identify particles with intersections.} + \item \alert<6>{Transform each intersecting particle.} + \item \alert<7-12>{Repeat 5--6 until exhausted.} + \end{enumerate} \end{column} \begin{column}{0.5\textwidth} \begin{overprint} @@ -67,12 +78,19 @@ \end{overprint} \end{column} \begin{column}{0.5\textwidth} + Interacting particles with pair potential $V$ have `Ising' Hamiltonian \[ - H=-\sum_{ij}V(\vec r_i, d_i, \vec r_j, d_j) - \] - \[ - p=1-e^{-\beta\Delta E} + H=\sum_{ij}V_{ij}(\vec r_i, \vec r_j) \] + + \begin{enumerate} + \item \alert<2>{Pick a symmetry transformation.} + \item \alert<3>{Pick a seed.} + \item \alert<4>{Transform the seed.} + \item \alert<5>{Identify particles with $\Delta V_{ij}>0$.} + \item \alert<6>{Transform each particle with probability $1-e^{-\Delta V_{ij}/T}$.} + \item \alert<7-10>{Repeat 5--6 until exhausted.} + \end{enumerate} \end{column} \end{columns} @@ -82,6 +100,16 @@ \frametitle{Hard sphere cluster flips with hard potential} \begin{columns} \begin{column}{0.5\textwidth} + Hard potential? Treat it like a particle! + + \begin{enumerate} + \item \alert<2>{Pick a symmetry transformation.} + \item \alert<3>{Pick a seed.} + \item \alert<4>{Transform the seed.} + \item \alert<5>{Identify `particles' with intersections.} + \item \alert<6>{Transform each intersecting particle.} + \item \alert<7-15>{Repeat 5--6 until exhausted.} + \end{enumerate} \end{column} \begin{column}{0.5\textwidth} \begin{overprint} @@ -106,6 +134,37 @@ \end{columns} \end{frame} +\begin{frame} + \frametitle{Cluster flips with soft potential} + \begin{columns} + \begin{column}{0.5\textwidth} + Soft potential? Treat it like a (big, soft, asymmetric) particle with effective pair potential $\tilde V$! + \begin{enumerate} + \item \alert<2>{Pick a symmetry transformation.} + \item \alert<3>{Pick a seed.} + \item \alert<4>{Transform the seed.} + \item \alert<5>{Identify `particles' with $\Delta\tilde V_{ij}>0$.} + \item \alert<6>{Transform each `particle' with probability $1-e^{-\Delta\tilde V_{ij}/T}$.} + \item \alert<7-15>{Repeat 5--6 until exhausted.} + \end{enumerate} + \end{column} + \begin{column}{0.5\textwidth} + \end{column} + \end{columns} +\end{frame} + +\begin{frame} + \frametitle{Cluster flips with soft potential} + \begin{columns} + \begin{column}{0.5\textwidth} + Soft potential? Treat it like a (big, soft, asymmetric) particle transformed to $r_0$! + + \end{column} + \begin{column}{0.5\textwidth} + \end{column} + \end{columns} +\end{frame} + \begin{frame} \frametitle{Caveats \& improvements} @@ -124,6 +183,20 @@ \frametitle{Demo time} \end{frame} +\begin{frame} + \frametitle{The dirty deets} + + System with symmetry group $G$ and objects with state $s_i$ (including position, radius, orientation, spin, \dots) + \[ + H=\sum_{ij}V(s_i, s_j)+\sum_iU(s_i) + \] + For $s_0\in G$ and new potential $\tilde V$ defined by $\tilde V_{0i}=U(s_0^{-1}\cdot s_i)$, + \begin{align*} + \tilde H&=\sum_{ij}V_{ij}(s_i, s_j)+\sum_iU_i(s_0^{-1}\cdot s_i) \\ + &=\sum_{ij}\tilde V_{ij}(s_i, s_j) + \end{align*} + has the form of a system without a potential. +\end{frame} \end{document} -- cgit v1.2.3-54-g00ecf