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 Korepin's 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.Contents:Cancellation of Ultra-Violet Infinities in One Loop Gravity (V E Korepin)Quantum Discord in a Spin System with Symmetry Breaking (B Tomasello, D Rossini, A Hamma and L Amico)Entanglement from the Dynamics of an Ideal Bose Gas in a Lattice (S Bose)Aspects of the Riemannian Geometry of Quantum Computation (H E Brandt)Quantum Mechanics and the Role of Time: Are Quantum Systems Markovian? (T Durt)Explicit Formula of the Separability Criterion for Continuous Variables Systems (K Fujikawa)Yang–Baxter Equations in Quantum Information (M-L Ge and K Xue)Nondistillable Entanglement Guarantees Distillable Entanglement (L Chen and M Hayashi)Reduced Density Matrix and Entanglement Entropy of Permutationally Invariant Quantum Many-Body Systems (V Popkov and M Salerno)Solitons Experience for Black Hole Production in Ultrarelativistic Particle Collisions (I Ya Aref'eva)Sine–Gordon Theory in the Repulsive Regime, Thermodynamic Bethe Ansatz and Minimal Models (H Itoyama)On Some Algebraic and Combinatorial Properties of Dunkl Elements (A N Kirillov)Finite Projective Spaces, Geometric Spreads of Lines and Multi-Qubits (M Saniga)Monogamy of Entanglement, N-Representability Problems and Ground States (T-C Wei)Readership: Undergraduate, graduate students and researchers interested in quantum information science, statistical mechanics and mathematical physics.