Entanglement Dynamics of Second Quantized Quantum Fields

Figure 2

The transversal component of normalized angular momentum 𝐽̃=2|⟨𝒥₊⟩|/⟨𝒩⟩ as a function of time and Δ𝑈/𝜔 for ⟨𝒩⟩=5. Resonances correspond to points where the initial coherence is restored, 𝐽̃=1.