The Korepin Festschrift : from statistical mechanics to quantum information science ; a collection of articles written in honor of the 60th birthday of Vladimir Korepin ; [on 25 28 May 2011 the Institute of Advanced Studies at the Nanyang Technological University organised the Fifth Asia Pacific Workshop on Quantum Information Science (APWQIS) ...] This volume mainly summarizes the invited talks presented at the 5th Asia Pacific Workshop on Quantum Information Science (APWQIS) in conjunction with a Festschrift in honor of Professor Vladimir Korepins 60th birthday. In this Festschrift we have assembled a medley of interesting articles from some of his friends well wishers and collaborators. Comprising both reviews of the state of the art and the latest results this book covers various aspects of quantum information science including topics like quantum discord quantum computing quantum entanglement etc