Comments welcome via email: <a href="mailto:natalie@wfu.edu"> 
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<h4>
n Introduction to Hubbard Rings at
U = &infin;
</h4><br>

 W. B. Hodge, N. A. W. Holzwarth, and W. C. Kerr <br>
submitted to <i>American Journal of Physics </i>
<a href="./Introduction_Hubbard_model_HodgeW.pdf"> local PDF </a>
<p>


Using a straightforward extension of the analysis of Lieb and Wu, we
derive a simple analytic form for the ground state energy of a 
one-dimensional Hubbard
ring at U/t = &infin;. This result is valid for an arbitrary number of 
lattice sites L and
electrons N &le; L. Furthermore, our analysis provides 
insight into the degeneracy and
spin properties of the ground states in this limit. 


<p>
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