Figure 4 | Scientific Reports

Figure 4

From: Dressed state dynamics of two-component Bose-Einstein Condensates in state-dependent potentials

Figure 4

The normal-to-MQST phase transition of dressed states for interacting BEC. (ac) The simulation results via the CGPEs [Eq. (5)]. (a) Josephson oscillations. (b), (c) MQST appears as the interaction strength increases. The initial state is set as the localized state of the right well of the lower dressed potential, namely Ψ(x, t = 0) = ϕ1(x) and Ψ+(x, t = 0) = 0, see Fig. 1(b) (I). The figures in the first (second) row denote the time evolution of the density profiles for upper (lower) dressed state, labeled by \({{\rm{\Psi }}}_{+}\)(\({{\rm{\Psi }}}_{-}\)). The normal-to-MQST transition happens when interaction strength is approximately gN = 0.018. (df) The simulation results obtained by the decoupled equations [Eq. (7)]. For this method, the normal-to-MQST transition happens when interaction strength is between gN = 0.018 and gN = 0.02. Other parameters: atom number N = 10000, potential separation x0 = 3, and coupling strength Ω = 3.

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