Neutronneja

Neutronneja is a fictional concept used in speculative physics and science fiction to describe a hypothetical state or excitation involving neutrons in dense matter. The term blends “neutron” with a fictional suffix and is employed in stories and thought experiments rather than in established nuclear physics.

In these contexts, neutronneja may be envisioned as a quasi-particle or collective mode arising from strong neutron-neutron correlations. It is sometimes described as enabling unusual energy transport, binding changes, or transient forces in neutron-rich environments such as the crusts of neutron stars or advanced reactor simulations. Because the idea is not grounded in experimental evidence, versions of neutronneja vary between authors and works, with properties ranging from massless or light to heavy, and from weakly to strongly interacting.

Real-world concepts that resemble neutronneja in function include lattice phonons in solids, superfluid phonons in neutron-star crusts, and other collective excitations in dense matter. Neutronneja is explicitly fictional and is used as a narrative device or thought-experiment to explore hypothetical behaviors of neutron-rich systems.

See also: Neutron, Neutron star, Phonon, Hypothetical particle.