  The quantum self-organization is introduced as one of the major underlying
mechanisms of the quantum many-body systems, for instance, atomic nuclei. It is
shown that atomic nuclei are not necessarily like simple rigid vases containing
almost free nucleons, in contrast to the naive Fermi liquid picture. Nuclear
forces are demonstrated to be rich enough to change single-particle energies
for each eigenstate, so as to enhance the relevant collective mode. When the
quantum self-organization occurs, single-particle energies can be
self-organized (or self-optimized), being enhanced by (i) two quantum liquids,
e.g., protons and neutrons, (ii) two major force components, e.g., quadrupole
interaction (to drive collective mode) and monopole interaction (to control
resistance). Type II shell evolution is considered to be a simple visible case
involving excitations across a (sub)magic gap. Actual cases such as shape
coexistence, quantum phase transition, octupole vibration/deformation, super
deformation, etc. can be studied with this scope. The quantum self-organization
becomes more important in heavier nuclei where the number of active orbits and
the number of active nucleons are larger. With larger numbers of them, the
effects of the organization can be more significant. The quantum
self-organization is a general phenomenon, and is expected to be found in other
quantum systems.
