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A unified formulation of the constant temperature molecular dynamics methods

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Nosé, Shuichi·1984·The Journal of Chemical Physics

Abstract

Three recently proposed constant temperature molecular dynamics methods by: (i) Nosé (Mol. Phys., to be published); (ii) Hoover et al. [Phys. Rev. Lett. 48, 1818 (1982)], and Evans and Morriss [Chem. Phys. 77, 63 (1983)]; and (iii) Haile and Gupta [J. Chem. Phys. 79, 3067 (1983)] are examined analytically via calculating the equilibrium distribution functions and comparing them with that of the canonical ensemble. Except for effects due to momentum and angular momentum conservation, method (1) yields the rigorous canonical distribution in both momentum and coordinate space. Method (2) can be made rigorous in coordinate space, and can be derived from method (1) by imposing a specific constraint. Method (3) is not rigorous and gives a deviation of order N−1/2 from the canonical distribution (N the number of particles). The results for the constant temperature–constant pressure ensemble are similar to the canonical ensemble case.

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Metadata

Authors
Nosé, S.
Venue
The Journal of Chemical Physics
Published
1984-07-01
Volume
81
Issue
1
Pages
511-519
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W2017196167
Cited by
19,152
References
0
FWCI
26.78
Type
journal article
Language
en
Open access
bronze

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