Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Chaotic behavior of triatomic clusters

Journal Article · · Physical Review A
 [1];  [2]
  1. Chemistry Department, Koc University, Istinye 80860, Istanbul (Turkey)
  2. Chemistry Department, Middle East Technical University, Ankara (Turkey)
The dynamics of triatomic clusters is investigated employing two-body Lennard-Jones and three-body Axilrod-Teller potential functions. Lyapunov exponents are calculated for the total energy range of {minus}2.70{epsilon}{lt}E{lt}{minus}0.72{epsilon}. The effects of the initial geometry of the cluster, its angular momentum, and the magnitude of three-body interactions are analyzed. It has been found that the dominating factor for the extent of chaotic behavior is the energy assigned to vibrational modes. The introduction of the rotational motion regularizes the dynamics in spite of a higher degree of nonlinearity. The three-body terms in the potential function affect the extent of the chaos in different manners depending on the initial geometry of the cluster. Finally, the time evolution of heterogeneous clusters generated by varying the size, mass, and the interaction strength of a single atom is observed. Their Lyapunov exponent spectra show that the additional nonlinearity reduces the chaotic behavior of the system in most of the cases. {copyright} {ital 1996} {ital The American Physical Society}
OSTI ID:
432520
Journal Information:
Physical Review A, Journal Name: Physical Review A Journal Issue: 1 Vol. 55; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English

Similar Records

Effects of three-body (Axilrod-Teller) forces on the classical and quantum behavior of rare-gas trimers
Journal Article · Tue Jul 01 00:00:00 EDT 1997 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics · OSTI ID:526959

N-body Lyapunov expansion rates in one component strongly coupled plasmas
Journal Article · Wed May 01 00:00:00 EDT 1996 · AIP Conference Proceedings · OSTI ID:397258

Particle simulation of Lyapunov exponents in one-component strongly coupled plasmas
Journal Article · Fri Feb 28 23:00:00 EST 1997 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics · OSTI ID:505236