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arXiv 1303.6965cond-mat.mes-hallquant-ph
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双量子点发射光子的全计数统计

Full Counting Statistics of Photons Emitted by Double Quantum Dot

Canran Xu, Maxim G. Vavilov

摘要:

本文分析了双量子点与高质量微波谐振腔电偶极相互作用所发射光子的全计数统计特性。我们发现,在共振条件下的能量分裂的DQD和光子的能量在谐振腔中,光子统计表现出亚泊松分布和反聚束。在理想情况下,当系统退相干仅仅源于光电探测时,光子噪声降低到泊松分布的噪声的一半以下,并且与电流噪声一致。即使在DQD中的适度退相干下,光子分布也保持亚泊松分布。我们证明了基于约瑟夫森结的光电倍增管可以用于实验评估发射光子的统计。

英文摘要:

We analyze the full counting statistics of photons emitted by a double quantum dot (DQD) coupled to a high-quality microwave resonator by electric dipole interaction. We show that at the resonant condition between the energy splitting of the DQD and the photon energy in the resonator, photon statistics exhibits both a sub-Poissonian distribution and antibunching. In the ideal case, when the system decoherence stems only from photodetection, the photon noise is reduced below one-half of the noise for the Poisson distribution and is consistent with current noise. The photon distribution remains sub-Poissonian even at moderate decoherence in the DQD. We demonstrate that Josephson junction based photomultipliers can be used to experimentally assess statistics of emitted photons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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