Phys. Rev. Lett. 105, 157801 (2010) [4 pages]Repulsive Reference Potential Reproducing the Dynamics of a Liquid with Attractions
A well-known result of liquid state theory is that the structure of dense fluids is mainly determined by their repulsive forces. The Weeks-Chandler-Andersen potential, which cuts intermolecular potentials at their minima, is therefore often used as a reference. However, this cannot reproduce the viscous dynamics of the Kob-Andersen binary Lennard-Jones liquid [ Berthier and Tarjus Phys. Rev. Lett. 103 170601 (2009)]. This paper shows that repulsive inverse-power-law potentials provide a reference for this liquid that reproduces its structure, dynamics, and isochoric heat capacity. This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2010 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.105.157801
DOI:
10.1103/PhysRevLett.105.157801
PACS:
61.20.Ne, 61.20.Ja, 61.20.Lc, 64.70.pm
|
|
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.