We study the use of the self-Kerr and cross-Kerr nonlinearities to realize strong photon blockade in a weakly driven,four-mode optomechanical system.According to the Born–Oppenheimer approximation,we obtain the cavit...We study the use of the self-Kerr and cross-Kerr nonlinearities to realize strong photon blockade in a weakly driven,four-mode optomechanical system.According to the Born–Oppenheimer approximation,we obtain the cavity self-Kerr coupling and the inter-cavity cross-Kerr coupling,adiabatically separated from the mechanical oscillator.Through minimizing the second-order correlation function,we find out the optimal parameter conditions for the unconventional photon blockade.Under the optimal conditions,the strong photon blockade can appear in the strong or weak nonlinearities.展开更多
基金the National Natural Science Foundation of China(Grant Nos.12034007 and 12204310)the Shanghai Sailing Program(Grant No.21YF1446900)the Research start-up project of Shanghai Institute of Technology(Grant No.YJ2021-65).
文摘We study the use of the self-Kerr and cross-Kerr nonlinearities to realize strong photon blockade in a weakly driven,four-mode optomechanical system.According to the Born–Oppenheimer approximation,we obtain the cavity self-Kerr coupling and the inter-cavity cross-Kerr coupling,adiabatically separated from the mechanical oscillator.Through minimizing the second-order correlation function,we find out the optimal parameter conditions for the unconventional photon blockade.Under the optimal conditions,the strong photon blockade can appear in the strong or weak nonlinearities.
