PHENOMENOLOGICAL APPLICATION OF THE PROJECTION-OPERATOR METHOD AND ITS CONNECTION WITH CRITICAL-DYNAMICS
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Undergraduate course
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American Physical Soc
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Article
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Acesso aberto
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Abstract
We consider the dynamics of a system of interacting spins described by the Ginzburg-Landau Hamiltonian. The method used is Zwanzig's version of the projection-operator method, in contrast to previous derivations in which we used Mori's version of this method. It is proved that both methods produce the same answer for the Green's function. We also make contact between the projection-operator method and critical dynamics.
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English
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Physical Review B. College Pk: American Physical Soc, v. 43, n. 4, p. 3613-3616, 1991.
