Atomic Entanglement and Decoherence

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The book delves into the complexities of generating entanglement within mesoscopic atomic ensembles, crucial for advancements in quantum information, teleportation, and precision measurements. It explores specific collective entangled states, including spin squeezed states, Schrödinger cat states, and Dicke states. Additionally, it addresses the impact of environmental decoherence on entanglement quality and introduces a straightforward formalism to handle cooperative decay of coherence in multilevel atoms, illustrated through a two-qubit example.