  I consider coherent vibrational states of the quantum plasmas formed by the
conduction electrons and protons inside a metal hydride. Such states can
interact coherently through weak interaction to produce neutrons at very low
energy. The existence of the vibrational coherent states is supported by a
recent theoretical analysis showing that these configurations are characterized
by an energy gap of the order of 1 eV per particle compared to the incoherent
configurations and are therefore dynamically stable. When excited coherently,
these configurations are able to transfer their energy, enabling highly
energetic mechanisms. In this paper I show how it is possible to produce
neutrons through such a coherent mechanism. The produced neutrons are
essentially at rest and remain confined within the metal. The theory developed
allows for the theoretical calculation of the production rate of neutrons.
