High-Efficiency Quantum Routing in a Multi-Cross-Shaped Waveguide

Efficiently routing the quantum signals between different channels is essential in a quantum multichannel network.We investigate the quantum routing in a multi-cross-shaped waveguide coupled to driven three-level systems.Numerical results show that the high routing capacity transferring from the input channel to the other channels can be explicitly enhanced by effective reflection potentials. The proposed system may be utilized as a scalable quantum device to control single-photon routing.     

二氧化碳缓冲溶液缓冲原理的数字化解析实验*

利用传感器数字化技术,分析室温下碳酸氢钠稀溶液直接吸收或释放二氧化碳气体的行为、pH及其变化趋势,设计数字化实验,为碳酸氢钠溶液在生物上作为二氧化碳缓冲液的行为提供化学实验验证。进行热力学计算,为其缓冲原理提供化学理论支撑。实验证明,碳酸氢钠稀溶液是构建二氧化碳缓冲液的充要条件,其作用原理是通过自偶电离建立碳酸氢钠碳酸钠缓冲对,从而与环境中的二氧化碳建立溶解平衡,其总方程式为:2HCO-3(aq)CO2-3(aq)+H2O(l)+CO2(g)。