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Statistical Mechanics of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>XY</mml:mi></mml:math>Model. I

Eytan BarouchIBM Watson Laboratory, Columbia University, New York, New York 10025Barry M. McCoyInstitute for Theoretical Physics, State University of New York, Stony Brook, New York 11790M. DresdenInstitute for Theoretical Physics, State University of New York, Stony Brook, New York 11790
1970lv
ABI

Abstract

The Liouville equation for the $\mathrm{XY}$ model is solved exactly, and the magnetization is computed explicitly. Nonergodic behavior of the magnetization is found for a general class of time-dependent magnetic fields.

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