论文标题
量子发射极和光场之间的能量传输的实验分析
Experimental analysis of energy transfers between a quantum emitter and light fields
论文作者
论文摘要
量子系统之间的能量转移可以通过有效的单一相互作用或通过产生纠缠来实现。该观察结果定义了两种类型的能量交换：单一和相关能量。在这里，我们提出并实施实验协议，以访问量子发射极和光场之间的相互作用中的这些能量传输。自发发射后，我们测量了从发射极到光场的统一能量转移，并表明它永远不超过总能量的一半，并且在引入腐蚀时会减少。然后，我们研究发射场和激光场在光束分离器上的干扰，并表明能量转移在定量上取决于发射场的量子纯度。
Energy transfer between quantum systems can either be achieved through an effective unitary interaction or through the generation of entanglement. This observation defines two types of energy exchange: unitary and correlation energy. Here we propose and implement experimental protocols to access these energy transfers in interactions between a quantum emitter and light fields. Upon spontaneous emission, we measure the unitary energy transfer from the emitter to the optical field and show that it never exceeds half of the total energy and is reduced when introducing decoherence. We then study the interference of the emitted field and a laser field at a beam splitter and show that the energy transfers quantitatively depend on the quantum purity of the emitted field.
