Allan Griffin is Professor Emeritus of Physics at the University of Toronto, Canada. His research has been on superfluid helium, superconductivity and the theory of ultracold matter and quantum gases. He is co-editor of Bose-Einstein Condensation, and the author of Excitations in a Bose-condensed Liquid (1996, 2005, both Cambridge University Press). Tetsuro Nikuni is Associate Professor at the Tokyo University of Science, Japan. His research focuses on the theory of quantum antiferromagnets and the theory of Bose-Einstein condensation in ultracold atomic gases. Eugene Zaremba is Professor of Physics at Queen's University, Canada. He has had a wide range of interests in theoretical condensed matter physics, including surface physics, density functional theory of electronic structure, dynamical excitations in solids and mesoscopic physics. His current interest is on the theory of ultracold matter.
'… a thorough account of the ZNG approach … a concise exposition of the scattered literature in this area. … an ideal collection for graduates and researchers in the field of ultracold atoms.' Contemporary Physics