Entanglement Dynamics of Second Quantized Quantum Fields

Figure 1

Schematic depiction of arrangement of one-particle states within sectors with 𝑁=0,1,2,3 in maximally entangled state achieved from initial Glauber’s coherent state. Dashed arrows show one-particle states represented as unit vectors in ℝ³ and solid arrows show their projections onto (𝑥,𝑦)-plane. If the initial state corresponds to ⟨𝒥_𝑧⟩=0, the one-particle states lie in the (𝑥,𝑦)-plane.