Physics of Condensed Matter: New Research examines various dimensions of condensed matter physics and the quantum of these matters. It includes five sections, where first two sections are dedicated to condensed matters and its quantum, third and fourth section talks about approximate models of electrons and Boltzmann Transport. Section five highlights the Fermion System of physics. Provide the reader with the insights into the development of substances in their solid state, so as to understand both crystalline solids in which the atoms are positioned on a repeating three-dimensional lattice.