Exact Transport Parameters for Driving Forces of Arbitrary Magnitude
- 5 July 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 27 (1) , 9-11
- https://doi.org/10.1103/physrevlett.27.9
Abstract
A straightforward analysis of the time-correlation function of interest in response theory involves the entire complicated solution of the dynamical problem. Using projection techniques we derive a simpler equation obeyed by the time-correlation function. Laplace transforms are used to solve this equation for the case when the driving force is a step function of arbitrary magnitude. The results are independent of the near-origin approximation of the Kubo formalism.Keywords
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