https://github.com/bdhammel/ising-model

Python implementation of the Ising model
https://github.com/bdhammel/ising-model

ising-model monte-carlo python simulation

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Python implementation of the Ising model

• Host: GitHub
• URL: https://github.com/bdhammel/ising-model
• Owner: bdhammel
• License: unlicense
• Created: 2017-05-15T02:55:28.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2020-04-11T19:12:44.000Z (over 5 years ago)
• Last Synced: 2024-04-21T11:20:25.528Z (over 1 year ago)
• Topics: ising-model, monte-carlo, python, simulation
• Language: Python
• Homepage: http://www.bdhammel.com/ising-model/
• Size: 843 KB
• Stars: 53
• Watchers: 3
• Forks: 16
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
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# Ising Model

Python code to simulate the Ising model of a Ferromagnet.

For a discussion of the theory, visit [my blog post](http://www.bdhammel.com/ising-model/).

![](./media/ising.png)

The initial conditions of the ising lattice can be specified by the `tempature`, `initial state`, and `size parameters` of the model.

Running the simulation will output a video of system as it changes through out the run steps.

## Example

The `--help` command can show to possible parameters for modifying the simulation 

~~~bash

$ python ising.py --help

Usage: ising.py [OPTIONS]

Options:

  -t, --temperature FLOAT    temperature of the system  [default: 0.5]

  -i, --initial-state [r|u]  (R)andom or (U)niform initial state of the system [default: r]

  -s, --size INTEGER         Number of sites, M, in the MxM lattice  [default: 100]

  -e, --epochs INTEGER       Number of iterations to run the simulation for [default: 1000000]

  --video                    Record a video of the simulation progression

  --help                     Show this message and exit.

~~~

For example:

~~~bash

$ python ising.py --temperature .8 --initial-state r --video

~~~

## FAQ

If you get the error:

~~~bash

MovieWriter stderr:

dyld: Library not loaded: /usr/local/opt/x264/lib/libx264.152.dylib

  Referenced from: /usr/local/bin/ffmpeg

  Reason: image not found

~~~

Then you need to install ffmpeg 

~~~bash

$ brew install ffmpeg

~~~