A discussion is continued on the author's recent conjecture that the o
verall particle number, when it changes in a localized physical proces
s, induces in its proximity a tiny deformation of the time run. In som
e cases, the corresponding weak time-deformation field carl be emitted
and also detected by matter sources. Sometimes, it can propagate free
ly through the spacetime as ultraluminal waves. Though these hypotheti
c waves cannot transport energy between matter sources, they can do it
with a new thermodynamic-type quantity called here the energy width.
This causes the quantum time evolution of matter sources to deviate sl
ightly from the conventional unitary evolution.