statePropagatorData_->constPreviousBox(),
PTCouplingArrays({ parrinelloRahmanBoxVelocities_ ? parrinelloRahmanBoxVelocities_() : nullMatrix,
{},
statePropagatorData_->constPreviousBox(),
PTCouplingArrays({ parrinelloRahmanBoxVelocities_ ? parrinelloRahmanBoxVelocities_() : nullMatrix,
{},