 Such a state is sometimes referred to as a "Schrödinger cat", since it allows the exploration of the counter intuitive effects of how quantum entanglement manifests in macroscopic systems.It can also be used to model how quantum information is transferred in a quantum field.The Hamiltonian that describes the full system,

consists of the free field Hamiltonian, the atomic excitation Hamiltonian, and the Jaynes–Cummings interaction Hamiltonian