Tunable two-axis spin model and spin squeezing in two cavities
Yu Lixian1, Li Caifeng2, 3, Fan Jingtao2, Chen Gang2, 5, Zhang Tian-Cai4, 5, Jia Suotang2, 5
Numerical plot of the time-dependent spin squeezing factors of both the Hamiltonians (5) and (6), with the same initial states |Jz = −j⟩. In panels (a) and (b), ωA/ω0 = 200, ωB/ω0 = ± 200 [“+” for (a) and “−” for (b)], λ1/ω0 = 2, λ2/ω0 = 1, and N = 15. In panels (c) and (d), ωA/ω0 = 200, ωB/ω0 = ± 200 [“+” for (c) and “−” for (d)], λ1/ω0 = 1, λ2/ω0 = 2, and N = 20.
