Computing Chemical Potential using the Phase Space Multi-histogram Method

Details Computing Chemical Potential using the Phase Space Multi-histogram Method Computing Chemical Potential using the Phase Space Multi-histogram Method

2011-09-04

arxiv.org/abs/1109.0713v1

Physics

Chemical Physics

Scientific paper

We present a new simulation method to calculate the free energy and the chemical potential of hard particle systems. The method relies on the introduction of a parameter dependent potential to smoothly transform between the hard particle system and the corresponding ideal gas. We applied the method to study the phase transition behavior of monodispersed infinitely thin square platelets. First, we equilibrated the square platelet system for different reduced pressures with a usual isobaric Monte Carlo (MC) simulation and obtained a reduced pressure-chemical potential plot. Then we introduce the parametrized potential to interpolate the system between the ideal gas and the hard particles. After selecting the potential, we performed isochoric MC runs, ranging from the ideal gas to the hard particle limit. Through an iterative procedure, we compute the free energy and the chemical potential of the square platelet system by evaluating the volume of the phase space attributed to the hard particles, and then we find the coexistence pressure of the system. Our method provides an intuitive approach to investigate the phase transitions of hard particle systems.

Affiliated with

Also associated with

No associations

Rating

Computing Chemical Potential using the Phase Space Multi-histogram Method does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Computing Chemical Potential using the Phase Space Multi-histogram Method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computing Chemical Potential using the Phase Space Multi-histogram Method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-109154