Photon antibunching in double quantum ring structures
Photon antibunching in double quantum ring structures
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DOI：
10.1103/physrevb.79.085308
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发表时间：
2009-02-01
影响因子：
3.7
通讯作者：
Gurioli, M.
中科院分区：
文献类型：
--
作者：
Abbarchi, M.;Mastrandrea, C. A.;Gurioli, M.
我们解决的问题是否可以被认为是一个单光子发射器的量子环纳米结构的强度时间相关测量的基础上的Hanbury-Brown和Twiss干涉仪。二阶相关函数g（2）很好地表征了发射体在零延迟时的光子反聚束凹陷的量子特性。在同心量子环中，我们发现了内环满足单光子源要求的证据，而在外环中，这一要求被放松。
We address the question whether a quantum ring nanostructure can be considered as a single-photon emitter by means of intensity time-correlation measurement based on a Hanbury-Brown and Twiss interferometer. The second-order correlation function g((2)) well characterizes the quantum nature of the emitter by the photon antibunching dip at zero delay. In concentric quantum rings we find evidence that the inner ring satisfies the requirement of single-photon source, while in the outer ring this requirement is relaxed.