Baumgartner B. — Griffiths Inequalities for Noninteracting N-Vector (Classical Heisenberg) Models and Applications to Interacting Systems
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Название: Griffiths Inequalities for Noninteracting N-Vector (Classical Heisenberg) Models and Applications to Interacting Systems
Автор: Baumgartner B.
Аннотация:
An order relation for tensors is defined. With this ordering it is shown that in noninteracting N-vector models - is positive. Applications to interacting models include a proof for the alignment of spins and the subadditivity of the free energy.
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