.. module:: quantas.ha
.. index:: Harmonic Approximation

======================
Harmonic Approximation
======================

.. autoclass:: quantas.harmonic.harmonic.HACalculator
   :show-inheritance:
   :members:

Employed functions
==================

.. autofunction:: quantas.utils.physics.statistical_mechanics.zero_point_energy

.. autofunction:: quantas.utils.physics.statistical_mechanics.thermal_energy

.. autofunction:: quantas.utils.physics.statistical_mechanics.internal_energy

.. autofunction:: quantas.utils.physics.statistical_mechanics.entropy

.. autofunction:: quantas.utils.physics.statistical_mechanics.entropy

.. autofunction:: quantas.utils.physics.statistical_mechanics.vibrational_free_energy

.. autofunction:: quantas.utils.physics.statistical_mechanics.free_energy

.. autofunction:: quantas.utils.physics.statistical_mechanics.isochoric_heat_capacity