Exact Solutions to the Quantum Rabi-Stark Model Within Tunable Coherent States
You-Fei Xie1,Qing-Hu Chen1,2,†(
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Fig. 3. (Color online) The ground state energy $E_{0}$ (left panel) and mean photon number $\langle a^{\dagger }a\rangle $ (right panel) for $g=0.25$, $U=0.5$ (upper panel) and $\Delta=0.5$ (low panel).
