Hello forum. I am a future M.S. Physics student (Fall 2012) that aspires to eventually obtain a PhD in some sort of materials science. Specifically, my interests lie in soft matter, thermodynamics and self assembled materials, but I am open minded to other directions. My M.S. school has the 2nd graduate semester of Quantum Mechanics as an elective instead of as a core class, and I would like to know about how useful and difficult it would be. Course description: Graduate Quantum Mechanics II Scattering, rotation group and irreducible tensor operations, identical particles, semi-classical radiation theory, atoms, path integral formalism, and other selected topics. What are the applications of these topics in materials science/condensed matter physics? How challenging is this course in terms of time spent and difficulty of concepts?