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Permutational Invariance
************************

.. autoclass:: qutip.piqs.piqs.Dicke
    :members:

.. autoclass:: qutip.piqs.piqs.Pim
    :members:

.. automodule:: qutip.piqs.piqs
    :members: num_dicke_states, num_dicke_ladders, num_tls, isdiagonal, dicke_blocks, dicke_blocks_full, dicke_function_trace, purity_dicke, entropy_vn_dicke, state_degeneracy, m_degeneracy, energy_degeneracy, ap, am, spin_algebra, jspin, collapse_uncoupled, dicke_basis, dicke, excited, superradiant, css, ghz, ground, identity_uncoupled, block_matrix, tau_column,
