Quantum information chemistry: Exploring non-local entanglement phenomena

This study explores the non-local phenomena arising from quantum entanglement (often referred to as non-locality). It investigates these phenomena through fundamental concepts of quantum information theory (QIT), particularly those involving quantum state superposition. The emergence of non-locality is discussed in connection with electron correlation from a chemical viewpoint, emphasizing both historical context and scientific significance. This phenomenon is analyzed using selected atomic and molecular test cases, providing insights into fundamental aspects of chemical systems and the processes they undergo. Ultimately, this work advances the emerging discipline of Quantum Information Chemistry (QIChem).