With the goal of minimizing the domain size for molecular dynamics (MD) simulations, we develop a new class of absorbing boundary conditions (ABCs) that mimic the phonon absorption properties of an unbounded exterior. The proposed MD-ABCs are extensions of perfectly matched discrete layers (PMDLs),
On the stability of boundary conditions for molecular dynamics
β Scribed by Xiantao Li
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 619 KB
- Volume
- 231
- Category
- Article
- ISSN
- 0377-0427
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β¦ Synopsis
We study the stability of boundary conditions for molecular dynamics simulations. A general stability criterion is established. We first consider a one-dimensional model with nearest neighbor interaction and multiple-neighbor interactions. We then generalize the results to more realistic models in 3D with nonlinear atomic interaction.
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