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Physical Sciences and Mathematics Commons

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Masters Theses & Specialist Projects

Physics

1981

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Full-Text Articles in Physical Sciences and Mathematics

A Numerical Investigation Of A Certain One-Dimensional Ising Model, Jimmy Green Jan 1981

A Numerical Investigation Of A Certain One-Dimensional Ising Model, Jimmy Green

Masters Theses & Specialist Projects

The model is a linear chain in which each spin interacts with its 2r nearest neighbors, the interaction energy being proportional to 1/r. Using a method similar to that of Montroll, the partition function of the model in the thermodynamic limit is shown to be related to the largest eigenvalue of a certain matrix. The largest eigenvalue of the matrix is determined numerically for 3 < r < 12.

Also, a correct method is demonstrated for evaluating an improper limit of the model, in which the interaction range is set to the chain length before the limit of an infinite number of spins is …