dc.creatordeKoning, M
dc.creatorAntonelli, A
dc.date1996
dc.dateJAN
dc.date2014-12-16T11:34:18Z
dc.date2015-11-26T17:59:53Z
dc.date2014-12-16T11:34:18Z
dc.date2015-11-26T17:59:53Z
dc.date.accessioned2018-03-29T00:42:24Z
dc.date.available2018-03-29T00:42:24Z
dc.identifierPhysical Review E. American Physical Soc, v. 53, n. 1, n. 465, n. 474, 1996.
dc.identifier1063-651X
dc.identifierWOS:A1996TR11700057
dc.identifier10.1103/PhysRevE.53.465
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/65398
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/65398
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/65398
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1291835
dc.descriptionIn this paper we investigate the behavior of an Einstein crystal as a reference system in adiabatic switching procedures. We study the canonical massive Nose-Hoover chain (MNHC) dynamics [G.J. Martyna, M.L. Klein, and M. Tuckerman, J. Chem. Phys. 97, 2635 (1992)] and show it can be used to determine Helmholtz free energies within an adiabatic switching procedure. We calculate the Helmoltz free energy difference between two different Einstein crystals, each consisting of 100 identical independent harmonic oscillators with different characteristic frequencies by a MNHC molecular dynamics adiabatic switching procedure. The simulations were performed using two different switching functions. Applying the quantitative error analysis of Tsao, Sheu, and Mou [J. Chem. Phys. 101, 2302 (1994)], it is found that systematic errors during the switching process can be estimated quantitatively, allowing a correction of the converged results. The corrected results obtained by adiabatic switching deviate less than 1% from the analytical value. It is observed that quantitative correction of converged results can be avoided by choosing a groper switching function.
dc.description53
dc.description1
dc.descriptionA
dc.description465
dc.description474
dc.languageen
dc.publisherAmerican Physical Soc
dc.publisherCollege Pk
dc.publisherEUA
dc.relationPhysical Review E
dc.relationPhys. Rev. E
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectMolecular-dynamics
dc.subjectConstant Temperature
dc.subjectOscillator
dc.subjectEquation
dc.titleEinstein crystal as a reference system in free energy estimation using adiabatic switching
dc.typeArtículos de revistas


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