Sastry, Srikanth (1996) Lyapunov spectra, instantaneous normal mode spectra, and relaxation in the Lennard-Jones liquid Physical Review Letters, 76 (20). pp. 3738-3741. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v76/i20/p3738_1
Related URL: http://dx.doi.org/10.1103/PhysRevLett.76.3738
Abstract
Lyapunov spectra are obtained numerically for the Lennard-Jones liquid for a range of temperatures. An approximation scheme for calculating the Lyapunov spectrum is described, assuming knowledge of (i) the instantaneous normal mode spectrum which characterizes the local potential energy landscape, and (ii) a decorrelation time. The adaptation, for this purpose, of an analytical relation by Newman is described. The temperature dependence of the maximum Lyapunov exponent, calculated with an ansatz for the decorrelation time, is shown to be in excellent agreement with simulation results.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 50150 |
| Deposited On: | 21 Jul 2011 14:24 |
| Last Modified: | 21 Jul 2011 14:24 |
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