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Microscopic theory of memory functions

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  • Nishigori, T.

Abstract

We define a sequence of microscopic dynamical variables by decomposing a Hilbert space into orthogonal subspaces, and construct for them a new hierarchy of equations which is particularly useful for highly correlated systems. A formal solution is shown to give a microscopic expression of Mori's generalized Langevin equation. With a classical liquid as an example, we demonstrate that the theory facilitates a first-principles calculation of memory functions.

Suggested Citation

  • Nishigori, T., 1980. "Microscopic theory of memory functions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 100(2), pages 266-276.
    • Handle: RePEc:eee:phsmap:v:100:y:1980:i:2:p:266-276
    DOI: 10.1016/0378-4371(80)90120-X
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