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| 3 |  |  | \chapter{\label{chapt:intro}Introduction and Theoretical Background} | 
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| 7 |  |  | \section{\label{introSec:theory}Theoretical Background} | 
| 8 |  |  |  | 
| 9 | mmeineke | 953 | The techniques used in the course of this research fall under the two | 
| 10 |  |  | main classes of molecular simulation: Molecular Dynamics and Monte | 
| 11 |  |  | Carlo. Molecular Dynamic simulations integrate the equations of motion | 
| 12 |  |  | for a given system of particles, allowing the researher to gain | 
| 13 |  |  | insight into the time dependent evolution of a system. Diffusion | 
| 14 |  |  | phenomena are readily studied with this simulation technique, making | 
| 15 |  |  | Molecular Dynamics the main simulation technique used in this | 
| 16 |  |  | research. Other aspects of the research fall under the Monte Carlo | 
| 17 |  |  | class of simulations. In Monte Carlo, the configuration space | 
| 18 |  |  | available to the collection of particles is sampled stochastichally, | 
| 19 |  |  | or randomly. Each configuration is chosen with a given probability | 
| 20 |  |  | based on the Maxwell Boltzman distribution. These types of simulations | 
| 21 |  |  | are best used to probe properties of a system that are only dependent | 
| 22 |  |  | only on the state of the system. Structural information about a system | 
| 23 |  |  | is most readily obtained through these types of methods. | 
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| 25 | mmeineke | 953 | Although the two techniques employed seem dissimilar, they are both | 
| 26 |  |  | linked by the overarching principles of Statistical | 
| 27 |  |  | Thermodynamics. Statistical Thermodynamics governs the behavior of | 
| 28 |  |  | both classes of simulations and dictates what each method can and | 
| 29 |  |  | cannot do. When investigating a system, one most first analyze what | 
| 30 |  |  | thermodynamic properties of the system are being probed, then chose | 
| 31 |  |  | which method best suits that objective. | 
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| 33 |  |  | \subsection{\label{introSec:statThermo}Statistical Thermodynamics} | 
| 34 |  |  |  | 
| 35 |  |  | ergodic hypothesis | 
| 36 |  |  |  | 
| 37 |  |  | enesemble averages | 
| 38 |  |  |  | 
| 39 |  |  | \subsection{\label{introSec:monteCarlo}Monte Carlo Simulations} | 
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| 41 | mmeineke | 953 | The Monte Carlo method was developed by Metropolis and Ulam for their | 
| 42 |  |  | work in fissionable material.\cite{metropolis:1949} The method is so | 
| 43 |  |  | named, because it heavily uses random numbers in the solution of the | 
| 44 |  |  | problem. | 
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| 46 |  |  |  | 
| 47 |  |  | \subsection{\label{introSec:md}Molecular Dynamics Simulations} | 
| 48 |  |  |  | 
| 49 |  |  | time averages | 
| 50 |  |  |  | 
| 51 |  |  | time integrating schemes | 
| 52 |  |  |  | 
| 53 |  |  | time reversible | 
| 54 |  |  |  | 
| 55 |  |  | symplectic methods | 
| 56 |  |  |  | 
| 57 |  |  | Extended ensembles (NVT NPT) | 
| 58 |  |  |  | 
| 59 |  |  | constrained dynamics | 
| 60 |  |  |  | 
| 61 |  |  | \section{\label{introSec:chapterLayout}Chapter Layout} | 
| 62 |  |  |  | 
| 63 |  |  | \subsection{\label{introSec:RSA}Random Sequential Adsorption} | 
| 64 |  |  |  | 
| 65 |  |  | \subsection{\label{introSec:OOPSE}The OOPSE Simulation Package} | 
| 66 |  |  |  | 
| 67 |  |  | \subsection{\label{introSec:bilayers}A Mesoscale Model for Phospholipid Bilayers} |