Non-classical properties of even circular states
Regiane Ragi, B. Baseia, S. S. Mizrahi · Journal of Optics B Quantum and Semiclassical Optics · 2000
Here we investigate some general properties of the so-called even circular state (ECS) produced in a cavity, consisting of a superposition of N coherent states |α k ⟩ ( k = 1,2,..., N ) with the same |α k |. Several special states may emerge from this kind of superposition: in particular, when 1<<( e |α k | 2 / N ) N <<4 N a Fock state with N quanta is produced, whereas when ( e |α k | 2 / N ) N <<1 one gets a vacuum state. We analyse the atomic scattering the ECSs produce when two-level atoms go through the cavity and also the non-classical depth of these states.