Microwave power harvesting using resonator-coupled double quantum dot photodiode

Autor:	Haldar, Subhomoy, Zenelaj, Drilon, Potts, Patrick P., Havir, Harald, Lehmann, Sebastian, Dick, Kimberly A., Samuelsson, Peter, Maisi, Ville F.
Rok vydání:	2023
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Quantum Physics
Zdroj:	Phys. Rev. B 109, L081403 (2024)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.109.L081403
Popis:	We demonstrate a microwave power-to-electrical energy conversion in a resonator-coupled double quantum dot. The system, operated as a photodiode, converts individual microwave photons to electrons tunneling through the double dot, resulting in an electrical current flowing against the applied voltage bias at input powers down to 1 femto-watt. The device attains a maximum power harvesting efficiency of 2%, with the photon-to-electron conversion efficiency reaching 12% in the single photon absorption regime. We find that the power conversion depends on thermal effects showing that thermodynamics plays a crucial role in the single photon energy conversion. Comment: 5 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2306.15797 Zobrazit plný text záznamu View this record from Arxiv