Journal article
Self-diffusion of a relativistic Lennard-Jones gas via semirelativistic molecular dynamics
- Abstract:
- The capability for molecular dynamics simulations to treat relativistic dynamics is extended by the inclusion of relativistic kinetic energy. In particular, relativistic corrections to the diffusion coefficient are considered for an argon gas modeled with a Lennard-Jones interaction. Forces are transmitted instantaneously without being retarded, an approximation that is allowed due to the short-range nature of the Lennard-Jones interaction. At a mass density of 1.4g/cm3, significant deviations from classical results are observed at temperatures above kBT≈0.05mc2, corresponding to an average thermal velocity of 32% of the speed of light. For temperatures approaching kBT≈mc2, the semirelativistic simulations agree with analytical results for hard spheres, which is seen to be a good approximation as far as diffusion effects are concerned.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 647.9KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevE.107.054138
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review E More from this journal
- Volume:
- 107
- Issue:
- 5
- Article number:
- 054138
- Publication date:
- 2023-05-30
- Acceptance date:
- 2023-05-08
- DOI:
- EISSN:
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1550-2376
- ISSN:
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1539-3755
- Language:
-
English
- Keywords:
- Pubs id:
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1340657
- Local pid:
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pubs:1340657
- Deposit date:
-
2023-05-11
Terms of use
- Copyright date:
- 2023
- Rights statement:
- Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
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