This topical and timely textbook is a collection of problems for students, researchers, and practitioners interested in state-of-the-art material and device applications in quantum mechanics. Most  problem are relevant either to a new device or a device concept or to current research topics which could spawn new technology. It deals with the practical aspects of the field, presenting a broad range of essential topics currently at the leading edge of technological innovation.Includes discussion on:Properties of Schroedinger EquationOperatorsBound States in NanostructuresCurrent and Energy Flux Densities in NanostructuresDensity of StatesTransfer and Scattering Matrix Formalisms for Modelling Diffusive Quantum TransportPerturbation Theory, Variational Approach and their Applications to Device ProblemsElectrons in a Magnetic or Electromagnetic Field and Associated PhenomenaTime-dependent Perturbation Theory and its ApplicationsOptical Properties of NanostructuresProblems in Quantum Mechanics: For Material Scientists, Applied Physicists and Device Engineersis an ideal companion to engineering, condensed matter physics or materials science curricula. It appeals to future and present engineers, physicists, and materials scientists, as well as professionals in these fields needing more in-depth understanding of nanotechnology and nanoscience.