01-70 D. Osadchy, J. E. Avron
Hofstadter butterfly as Quantum phase diagram (1824K, Latex 2.09 with 1 EPS color figure, (Revtex package is used)) Feb 20, 01
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Abstract. The Hofstadter butterfly is viewed as a quantum phase diagram with infinitely many phases, labeled by their (integer) Hall conductance, and a fractal structure. We describe various properties of this phase diagram: We establish Gibbs phase rules; count the number of components of each phase, and characterize the set of multiple phase coexistence.

Files: 01-70.src( 01-70.keywords , euler10.tex , b200_v.eps )