International Science Community Association Research Journal of Physical Sciences 2320 - 4796 5 3 2017 04 4 The unified energy as vacuum quintessence in wave equations 1 6 EN Louis-Marie Moukala 1 Département des Sciences exactes, École Normale Supérieure, Université Marien Ngouabi, Brazzaville, Congo > Research Article 2017 3 21 2017 04 4 The vacuum composition determination is a great challenge in field theories. The unified field expression is yet less. Here, we completed a previous gauge field theory we established from the wave equations. This postulated the unified field manifestation from the results foreseeing that any boson is a fermion-antifermion couple. Exploring expressions defining these components, it appeared that the vacuum is stable in only two natures of fundamental fermions; otherwise it is instable. The first nature defines matter fermions generated by any particle while the second implies dark matter fermions. We determined dark particles gauge and field expressions applying the space-time symmetry in the gauge construction procedure previously got. These correspond to imaginary masses and charges. It is shown that dark particles travel at a velocity greater than that of the light to have such characteristics. Examining the simultaneous gauge and field invariances, we found that the vacuum must be defined as an elastic medium divisible in cells to explain the field propagation. These have internal properties in which the existence of a magnetic like static field. The electric like field is dynamic and admit quantized solutions. We argued that this defines the unified field and the vacuum is structured with unified matter. The general solutions of the four fundamental fields are given. We ended by showing that radiations define the frontier between matter and dark matter. Copyright@ International Science Community Association