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Lennard-Jones 2D Demon Model
written by Wolfgang Christian
The Lennard-Jones 2D Demon Model is a Monte Carlo simulation of  Lennard-Jones particles in two dimensions interacting with a Monte Carlo demon.  A Monte Carlo demon is an extra degree of freedom that is allowed to transfer energy as it attempts to change the state of the system. The demon keeps track of its own energy and can take or give energy to a particle as it interacts with a randomly chosen particle. Because the demon cannot have negative energy, the total energy of the system remains constant -- as it should in the microcanonical ensemble. The demon is, in effect, a thermometer. Its extra degree of freedom perturbs the system very little and the average demon energy is proportional to the temperature of the system. (See Statistical and Thermal Physics notes by H. Gould and J. Tobochnik.)

The Lennard-Jones 2D Demon Model was developed using the Easy Java/JavaScript Simulations (EjsS) version 5 modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.

Please note that this resource requires at least version 1.6 of Java.
1 source code document is available
Subjects Levels Resource Types
General Physics
- Computational Physics
Thermo & Stat Mech
- First Law
= Internal Energy
= Thermal Equilibrium
- Kinetic and Diffusive Processes
= Correlation Function
- Models
= Lennard-Jones Potential
- Thermal Properties of Matter
= Temperature
- Lower Undergraduate
- Upper Undergraduate
- Instructional Material
= Interactive Simulation
= Lecture/Presentation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
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Access Rights:
Free access
License:
This material is released under a GNU General Public License Version 3 license.
Rights Holder:
Wolfgang Christian
Record Cloner:
Metadata instance created August 1, 2014 by Wolfgang Christian
Record Updated:
August 1, 2014 by Wolfgang Christian
Last Update
when Cataloged:
August 1, 2014
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Record Link
AIP Format
W. Christian, Computer Program LENNARD-JONES 2D DEMON MODEL (2014), WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13329&DocID=3882).
AJP/PRST-PER
W. Christian, Computer Program LENNARD-JONES 2D DEMON MODEL (2014), <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13329&DocID=3882>.
APA Format
Christian, W. (2014). Lennard-Jones 2D Demon Model [Computer software]. Retrieved September 20, 2018, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13329&DocID=3882
Chicago Format
Christian, Wolfgang. "Lennard-Jones 2D Demon Model." https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13329&DocID=3882 (accessed 20 September 2018).
MLA Format
Christian, Wolfgang. Lennard-Jones 2D Demon Model. Computer software. 2014. Java 1.6. 20 Sep. 2018 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13329&DocID=3882>.
BibTeX Export Format
@misc{ Author = "Wolfgang Christian", Title = {Lennard-Jones 2D Demon Model}, Month = {August}, Year = {2014} }
Refer Export Format

%A Wolfgang Christian
%T Lennard-Jones 2D Demon Model
%D August 1, 2014
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13329&DocID=3882
%O application/java

EndNote Export Format

%0 Computer Program
%A Christian, Wolfgang
%D August 1, 2014
%T Lennard-Jones 2D Demon Model
%8 August 1, 2014
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13329&DocID=3882


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The AIP Style presented is based on information from the AIP Style Manual.

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Lennard-Jones 2D Demon Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Lennard-Jones 2D Demon Model.

relation by Wolfgang Christian

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