(17) A SPIN-OSCILLATOR COUPLED APPROXIMATION FOR THE STATICS AND DYNAMICS OF A FOURTH ORDER ANHARMONIC LATTICE (17) A SPIN-OSCILLATOR COUPLED APPROXIMATION FOR THE STATICS AND DYNAMICS OF A FOURTH ORDER ANHARMONIC LATTICE

この論文は国立情報学研究所の電子図書館事業により電子化されました。We derive the dynamic correlation matrix for a fourth order anharmonic lattice. A selfconsistent Ising spin-oscillator coupled approximation is introduced and shown to yield a static susceptibility in qualitative agreement with the exact result for a non-interacting system. Extensions of the approximation to dynamics, and to a J-dimensional lattice of interacting oscillators are discussed.

We derive the dynamic correlation matrix for a fourth order anharmonic lattice. A selfconsistent Ising spin-oscillator coupled approximation is introduced and shown to yield a static susceptibility in qualitative agreement with the exact result for a non-interacting system. Extensions of the approximation to dynamics, and to a J-dimensional lattice of interacting oscillators are discussed.