The boson-fermion hybrid representation.
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Article
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1981
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Elsevier Science
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English
⚖ 88 KB
case it is well known) but also for the XY-model. It signals the existence of distinct surface and bulk transitions for sufficiently large values of KJK,. For the Ising model the complete program can be carried out and the phase diagram for films of arbitrary thickness is constructed. For the doubl