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Open AccessArticle

Photon Counting Statistics of a Microwave Cavity Coupled with Double Quantum Dots

1
Guangzhou Key Laboratory for Special Fiber Photonic Devices, Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
2
Department of Electronic Information Engineering, Guangzhou College of Technology and Business, Foshan 528138, China
3
Institute of Modern Optics, Nankai University, Tianjin 300350, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(22), 4934; https://doi.org/10.3390/app9224934
Received: 29 October 2019 / Revised: 14 November 2019 / Accepted: 14 November 2019 / Published: 16 November 2019
(This article belongs to the Special Issue Optical Properties of Confined Quantum Systems 2020)
The statistical properties of photon emission counting, especially the waiting time distributions (WTDs) and large deviation statistics, of a cavity coupled with the system of double quantum dots (DQDs) driven by an external microwave field were investigated with the particle-number-resolved master equation. The results show that the decay rate of the WTDs of the cavity for short and long time limits can be effectively tuned by the driving external field Rabi frequency, the frequency of the cavity photon, and the detuning between the microwave driving frequency and the energy-splitting of the DQDs. The photon emission energy current will flow from the thermal reservoir to the system of the DQDs when the average photon number of the cavity in a steady state is larger than that of the thermal reservoir; otherwise, the photon emission energy current will flow in the opposite direction. This also demonstrates that the effect of the DQDs can be replaced a thermal reservoir when the rate difference of a photon absorbed and emitted by DQDs is larger than zero; otherwise, it is irreplaceable. The results deepen our understanding of the statistical properties of photon emission counting. It has a promising application in the construction of nanostructured devices of photon emission on demand and of optoelectronic devices. View Full-Text
Keywords: double quantum dots; waiting time distribution; large deviation statistics double quantum dots; waiting time distribution; large deviation statistics
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MDPI and ACS Style

Wang, F.; Liu, W.; Wang, X.; Wei, Z.; Meng, H.; Liang, R. Photon Counting Statistics of a Microwave Cavity Coupled with Double Quantum Dots. Appl. Sci. 2019, 9, 4934.

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