
Entanglement Entropies in One-Dimensional Systems
A study of quantum many-body critical systems
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Quantum phase transition are phase transitions occurring at zero absolute temperature: classical fluctuations are completely suppressed, and quantum effects become macroscopic. Their detection and the exploration of their properties are among the main objectives of quantum many-body theory. In this book, we explore how quantum-information concepts, namely entaglement entropies, can help in such a mission, and provide quantitative information about the physics of closed one-dimensional lattice systems.