2015/12/31 by Clement H. Wong, Maxim Vavilov, Maxim G. Vavilov · 48 citations
Computer Science · Physics and Astronomy · #Circuit quantum electrodynamics #Condensed matter physics #Coupling (piping) #Detector #Materials science #Microwave #Noise (video) #Optics #Optoelectronics #Photon #Physics #Quality (philosophy) #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum computer #Quantum dot #Quantum mechanics #Resonator #Semiconductor Quantum Structures and Devices #Superconductivity #cond-mat.mes-hall
paper · pdf · doi:10.1103/physreva.95.012325
published in Physical Review A 95(1) (American Physical Society)
arxiv created 2016/06/15 · openalex created_date 2016/06/24 · openalex publication_date 2017/01/24 · arxiv updated 2017/09/20 · openalex updated_date 2026/08/06
Motivated by recent interest in implementing circuit quantum electrodynamics with semiconducting quantum dots, we consider a double quantum dot (DQD) capacitively coupled to a superconducting resonator that is driven by the microwave field of a superconducting transmission line. We analyze the DQD current response using input-output theory and show that the resonator-coupled DQD is a sensitive microwave single photon detector. Using currently available experimental parameters of DQD-resonator coupling and dissipation, including the effects of 1/f charge noise and phonon noise, we determine the parameter regime for which incident photons are completely absorbed and near-unit \ensuremath\gtrsim98% efficiency can be achieved. We show that this regime can be reached by using very high quality resonators with quality factor Q\ensuremath≃105.