Inhomogeneous quantum state -- a "missing link" in the early universe?

Repeated observations from the Cosmic-Microwave-Background-Radiation (CMBR) have proven that the matter distribution in the early universe, specifically at the Last Scattering Surface (LSS), was inhomogeneous and anisotropic. Assuming these two characteristics of the CMBR have a true quantum origin we have no choice but to calculate quantum fluctuations, and then trade it off with the observed "classical density perturbations". These density perturbations are often called the "seeds for structure formation" and we must understand how they showed up on the LSS. At present, existing approaches are far from being universally accepted. In this talk, I shall argue that we can provide a satisfactory answer to the problem by using a semi-classical gravity approach. However, there is a missing link. This missing link is a physical quantum state of matter which manifestly breaks the homogeneity and isotropy symmetries. I shall demonstrate a mathematical formulation of such a quantum state ("T-vacuum") in the post-inflationary universe and draw a physical picture of the usefulness of such a state for addressing the problem. I will present the status and draw possible future paths of the approach.