@article{1435842,
      recid = {1435842},
      author = {Kenkre, V. M.},
      title = {Memory functions, projection operators, and the defect  technique : some tools of the trade for the condensed  matter physicist /},
      pages = {1 online resource},
      abstract = {This book provides a graduate-level introduction to three  powerful and closely related techniques in condensed matter  physics: memory functions, projection operators, and the  defect technique. Memory functions appear in the formalism  of the generalized master equations that express the time  evolution of probabilities via equations non-local in time,  projection operators allow the extraction of parts of  quantities, such as the diagonal parts of density matrices  in statistical mechanics, and the defect technique allows  solution of transport equations in which the translational  invariance is broken in small regions, such as when  crystals are doped with impurities. These three methods  combined form an immensely useful toolkit for  investigations in such disparate areas of physics as  excitation in molecular crystals, sensitized luminescence,  charge transport, non-equilibrium statistical physics,  vibrational relaxation, granular materials, NMR, and even  theoretical ecology. This book explains the three  techniques and their interrelated nature, along with plenty  of illustrative examples. Graduate students beginning to  embark on a research project in condensed matter physics  will find this book to be a most fruitful source of  theoretical training.},
      url = {http://library.usi.edu/record/1435842},
      doi = {https://doi.org/10.1007/978-3-030-68667-3},
}