espressopp.interaction.DihedralHarmonicCos

\[U = K (cos(\phi) - cos(\phi_0))^2\]
espressopp.interaction.DihedralHarmonicCos(K, phi0)
Parameters:

  • K (real) – (default: 0.0)

  • phi0 (real) – (default: 0.0)

espressopp.interaction.FixedQuadrupleListDihedralHarmonicCos(system, fql, potential)
Parameters:

  • system

  • fql

  • potential

espressopp.interaction.FixedQuadrupleListDihedralHarmonicCos.getFixedQuadrupleList()
Return type:

A Python list of lists.

espressopp.interaction.FixedQuadrupleListDihedralHarmonicCos.setPotential(potential)
Parameters:

potential

class espressopp.interaction.DihedralHarmonicCos.DihedralHarmonicCos(*args, **kwds)

The DihedralHarmonicCos potential.