Transferring Einstein-Podolsky-Rosen State Cross Frequency Bands via Cavity Electro-Opto-Mechanical Converters

Analysis on current opto-electronic transmission research and its materials with new perspectives

“…It measures how close the applied quantum state used to generate quantum bits is to the ideal state. Luo et al (2020) proposed a scheme which could transfer the quantum state (Einstein-Podolsky-Rosen) from optical input to microwave output at high Uhlmann fidelity at various frequency bands. Ulhmann fidelity describes the efficiency of quantum state transfer, which also quantifies the performance of the EPR scheme [10].…”

“…Ulhmann fidelity describes the efficiency of quantum state transfer, which also quantifies the performance of the EPR scheme [10]. In their article, the principle and operation modes of cavity electro-opto-mechanical (EOM) microwave converter were discussed, and the influence of optical input bandwidth and coupling rates on fidelity, transmission spectrum, interaction rate, and decoherence rate were analyzed [11]. The cavity EOM converter had a structure where an optical F-P cavity and a microwave LC circuit cavity were coupled with a nano-scale mechanical oscillator consisting partial circuit on a movable silicon plate, which functioned in microwave optical entanglement transmission mode (detuning of microwave frequency equals to detuning of optical frequency equals to mechanical oscillator frequency, ) [11].…”

“…In their article, the principle and operation modes of cavity electro-opto-mechanical (EOM) microwave converter were discussed, and the influence of optical input bandwidth and coupling rates on fidelity, transmission spectrum, interaction rate, and decoherence rate were analyzed [11]. The cavity EOM converter had a structure where an optical F-P cavity and a microwave LC circuit cavity were coupled with a nano-scale mechanical oscillator consisting partial circuit on a movable silicon plate, which functioned in microwave optical entanglement transmission mode (detuning of microwave frequency equals to detuning of optical frequency equals to mechanical oscillator frequency, ) [11]. The article also showed that strong coupling rates, ultra-low temperature and narrow input bandwidth improved the performance of this scheme and indicated relevant fields of implementation including quantum computing, quantum communication network and quantum interface [11].…”