Phys. Rev. Lett. 93, 113402 (2004) [4 pages]Phase-Space Invariants as Indicators of the Critical Behavior of NanoaggregatesSee Also: Publisher's Note Received 27 November 2003; published 9 September 2004; publisher error corrected 10 September 2004 A phase-space approach is proposed for molecular dynamics simulations, which serve as a bridge between detailed descriptions of microscopic world and macroscopic properties of matter. The introduction—aside from the angular momentum of spatial rotations—of other “hyperangular” momenta (the overall grand angular momentum of a cluster of particles and those describing the deformation and rearrangement modes) permits one to analyze different degrees of freedom and to extract, from simulation data, a kinetic energy partition in terms of phase-space invariants. Model calculations illustrate how these provide specific signatures of critical behavior, such as energy thresholds for openings of chaotic pathways in small clusters and for phase transitions in nanoaggregates. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.113402
DOI:
10.1103/PhysRevLett.93.113402
PACS:
36.40.Sx, 36.40.Ei, 45.50.Jf
See AlsoPublisher's Note: Vincenzo Aquilanti, Andrea Lombardi, Mikhail B. Sevryuk, and Ersin Yurtsever, Publisher's Note: Phase-Space Invariants as Indicators of the Critical Behavior of Nanoaggregates [Phys. Rev. Lett. 93, 113402 (2004)], Phys. Rev. Lett. 93, 139902 (2004). |
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.