Dynamical equations for the period vectors in a periodic system under constant external stress1

  title={Dynamical equations for the period vectors in a periodic system under constant external stress1},
  author={Gang Liu},
  journal={Canadian Journal of Physics},
  • Gang Liu
  • Published 16 September 2002
  • Physics
  • Canadian Journal of Physics
The purpose of this paper is to derive the dynamical equations for the period vectors of a periodic system under constant external stress. The explicit starting point is Newton’s second law applied to halves of the system. Later statistics over indistinguishable translated states and forces associated with transport of momentum are applied to the resulting dynamical equations. In the final expressions, the period vectors are driven by the imbalance between internal and external stresses. The… 

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