EFFECTS OF DISORDER ON NONCLASSICALITY IN MANY-BODY SYSTEMS.

      Аннотация: Quantum many-body systems constitute a natural ground for the physical realization of numerous quantum information processing protocols. Since pure quantum systems are rare in nature due to factors such as decoherence, thermal fluctuations, and impurities, disordered quantum many-body systems hold greater practical appeal than their pristine counterparts. This book dedicates its focus to find disorder's repercussions on quantum correlations within a range of diverse many-body systems. By employing tools rooted in quantum information theory, the book unveils intriguing physics within the realm of quenched disorder, laying bare phenomena like the enhancement of quantum correlation length, the artful sidestepping of no-go theorems, and the reinforcement of disorder-induced order under thermal fluctuation.

Ключевые слова: quantum, Entanglement, many-body systems, SPIN, quantum correlation, quantum discord, disordered systems, quenched disorder