Quantum-classical correspondence and mechanical analysis of a classical-quantum chaotic system
Bi Haiyun1, 3, Qi Guoyuan2, †, Hu Jianbing1, Wu Qiliang4
       

Time series (a) 〈x1⟩, (b) 〈x2⟩, (c) Hamiltonian energy, and (d) Casimir energy.