The European Physical Journal Plus ( IF 3.4 ) Pub Date : 2021-07-28 , DOI: 10.1140/epjp/s13360-021-01769-2 Mohadese Forozesh 1 , Ali Mortezapour 1 , Alireza Nourmandipour 2
We conduct a study into the impact of frequency modulation on the dynamic behavior of qubit–photon entanglement inside a leaky cavity and subsequently on the entanglement swapping between such two qubits. Furthermore, we investigate how frequency modulation can affect the entropic uncertainty and its lower bound. It is revealed that there are optimal modulation parameters for which the system experiences a long-lasting qubit–photon entanglement as well as a robust swapped entanglement. Moreover, the obtained result indicates that for the optimal modulation parameters, the entropic uncertainty can be maintained small for a long time.
中文翻译:
通过频率调制控制量子位-光子纠缠、纠缠交换和熵不确定性
我们研究了频率调制对泄漏腔内量子位-光子纠缠的动态行为的影响,以及随后对这两个量子位之间的纠缠交换的影响。此外,我们研究了频率调制如何影响熵不确定性及其下限。结果表明,存在最佳调制参数,系统会针对这些参数经历持久的量子位-光子纠缠以及稳健的交换纠缠。此外,所得结果表明,对于最优调制参数,熵不确定性可以长时间保持较小。