Ghirri Alberto, Cornia Samuele, Affronte Marco
Istituto Nanoscienze-CNR, via Campi 213/a, 41125 Modena, Italy.
Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio Emilia, via Campi 213/a, 41125 Modena, Italy.
Sensors (Basel). 2020 Jul 19;20(14):4010. doi: 10.3390/s20144010.
Detectors of microwave photons find applications in different fields ranging from security to cosmology. Due to the intrinsic difficulties related to the detection of vanishingly small energy quanta ℏ ω , significant portions of the microwave electromagnetic spectrum are still uncovered by suitable techniques. No prevailing technology has clearly emerged yet, although different solutions have been tested in different contexts. Here, we focus on semiconductor quantum dots, which feature wide tunability by external gate voltages and scalability for large architectures. We discuss possible pathways for the development of microwave photon detectors based on photon-assisted tunneling in semiconducting double quantum dot circuits. In particular, we consider implementations based on either broadband transmission lines or resonant cavities, and we discuss how developments in charge sensing techniques and hybrid architectures may be beneficial for the development of efficient photon detectors in the microwave range.
微波光子探测器在从安全到宇宙学的不同领域都有应用。由于与探测极小能量量子ℏω相关的内在困难，微波电磁频谱的很大一部分仍未被合适的技术覆盖。尽管在不同背景下已经测试了不同的解决方案，但尚未有明显占主导地位的技术出现。在此，我们聚焦于半导体量子点，其具有通过外部栅极电压实现的广泛可调性以及适用于大型架构的可扩展性。我们讨论基于半导体双量子点电路中光子辅助隧穿来开发微波光子探测器的可能途径。特别地，我们考虑基于宽带传输线或谐振腔的实现方式，并讨论电荷传感技术和混合架构的发展如何可能有利于微波波段高效光子探测器的开发。
