scholarly journals FIR and Microwave Photon Detection by Quantum Dots

2003 ◽  
Vol 72 (Suppl.A) ◽  
pp. 102-105 ◽  
Author(s):  
Oleg Astafiev ◽  
Takeshi Kutsuwa ◽  
Vladimir Antonov ◽  
Susumu Komiyama
Keyword(s):  
Quantum Dots ◽  
Photon Detection ◽  
Microwave Photon

scholarly journals Towards the Heisenberg limit in microwave photon detection by a qubit array

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
P. Navez ◽  
A. G. Balanov ◽  
S. E. Savel'ev ◽  
A. M. Zagoskin
Keyword(s):  
Photon Detection ◽  
Heisenberg Limit ◽  
Microwave Photon

scholarly journals Microwave Photon Detectors Based on Semiconducting Double Quantum Dots

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 4010
Author(s):  
Alberto Ghirri ◽  
Samuele Cornia ◽  
Marco Affronte
Keyword(s):  
Quantum Dots ◽  
Transmission Lines ◽  
Double Quantum ◽  
Electromagnetic Spectrum ◽  
Microwave Range ◽  
Photon Detectors ◽  
Small Energy ◽  
Resonant Cavities ◽  
Charge Sensing ◽  
Microwave Photon

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.

scholarly journals Single microwave photon detection in the micromaser

2009 ◽  
Vol 42 (14) ◽  
pp. 145501 ◽  
Author(s):  
M L Jones ◽  
G J Wilkes ◽  
B T H Varcoe
Keyword(s):  
Photon Detection ◽  
Microwave Photon

Electrostatics of quantum dots in high magnetic fields and single far-infrared photon detection

2000 ◽  
Vol 62 (24) ◽  
pp. 16731-16743 ◽  
Author(s):  
O. Astafiev ◽  
V. Antonov ◽  
T. Kutsuwa ◽  
S. Komiyama
Keyword(s):  
Quantum Dots ◽  
Magnetic Fields ◽  
Far Infrared ◽  
High Magnetic Fields ◽  
Photon Detection ◽  
Infrared Photon

scholarly journals Single Microwave Photon Detection with a Trapped Electron

Photonics ◽  
2016 ◽  
Vol 3 (4) ◽  
pp. 59 ◽  
Author(s):  
April Cridland ◽  
John Lacy ◽  
Jonathan Pinder ◽  
José Verdú
Keyword(s):  
Photon Detection ◽  
Microwave Photon ◽  
Trapped Electron

scholarly journals Microwave photon detection by an Al Josephson junction

2020 ◽  
Vol 11 ◽  
pp. 960-965 ◽  
Author(s):  
Leonid S Revin ◽  
Andrey L Pankratov ◽  
Anna V Gordeeva ◽  
Anton A Yablokov ◽  
Igor V Rakut ◽  
...  
Keyword(s):  
Josephson Junction ◽  
Single Photon ◽  
Photon Absorption ◽  
External Signal ◽  
Escape Time ◽  
Signal Attenuation ◽  
Threshold Detector ◽  
Photon Detection ◽  
Phase Diffusion ◽  
Microwave Photon

An aluminium Josephson junction (JJ), with a critical current suppressed by a factor of three compared with the maximal value calculated from the gap, is experimentally investigated for application as a threshold detector for microwave photons. We present the preliminary results of measurements of the lifetime of the superconducting state and the probability of switching by a 9 GHz external signal. We found an anomalously large lifetime, not described by the Kramers’ theory for the escape time over a barrier under the influence of fluctuations. We explain it by the phase diffusion regime, which is evident from the temperature dependence of the switching current histograms. Therefore, phase diffusion allows for a significant improvement of the noise immunity of a device, radically decreasing the dark count rate, but it will also decrease the single-photon sensitivity of the considered threshold detector. Quantization of the switching probability tilt as a function of the signal attenuation for various bias currents through the JJ is observed, which resembles the differentiation between N and N + 1 photon absorption.

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