  An extension to the wave packet description of quantum plasmas is presented,
where the wave packet can be elongated in arbitrary directions. A generalised
Ewald summation is constructed for the wave packet models accounting for
long-range Coulomb interactions and fermionic effects are approximated by
purpose-built Pauli potentials, self-consistent with the wave packets used. We
demonstrate its numerical implementation with good parallel support and close
to linear scaling in particle number, used for comparisons with the more common
wave packet employing isotropic states. Ground state and thermal properties are
compared between the models with differences occurring primarily in the
electronic subsystem. Especially, the electrical conductivity of dense hydrogen
is investigated where a 15% increase in DC conductivity can be seen in our wave
packet model compared to other models.
