Cryogenic amplifier with low input-referred voltage noise calibrated by shot noise measurement<xref rid="cpb_27_6_060702_fn1" ref-type="fn">*</xref><fn id="cpb_27_6_060702_fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant No. 11474008), the National Key Research and Development Program of China (Grant No. 2016YFA0300904), and the National Basic Research Program of China (Grant No. 2011CBA00106).</p> </fn>

Cryogenic amplifier with low input-referred voltage noise calibrated by shot noise measurement* *

Project supported by the National Natural Science Foundation of China (Grant No. 11474008), the National Key Research and Development Program of China (Grant No. 2016YFA0300904), and the National Basic Research Program of China (Grant No. 2011CBA00106).

Yang Wuhao^†, Wei Jian

(color online) Schematic diagram of the measurement setup with the transport measurement part and the noise measurement part. The transport measurement includes four lines (twisted pair cable), while the noise measurement includes four coaxial cables. Only one coaxial cable which is as output line is shown in this figure for simplicity.