Johnson noise thermometry measurements using a quantized voltage noise source for calibration

  title={Johnson noise thermometry measurements using a quantized voltage noise source for calibration},
  author={Sae Woo Nam and Samuel P. Benz and Paul D. Dresselhaus and Weston L. Tew and Rod White and John M. Martinis},
  journal={IEEE Trans. Instrum. Meas.},
We describe a new approach to Johnson noise thermometry (JNT) that exploits recent advances in Josephson voltage standards and digital signal processing techniques. Currently, high-precision thermometry using Johnson noise is limited by the nonideal performance of electronic measurement systems. By using the perfectly quantized voltage pulses from a series array of Josephson junctions, any arbitrary broadband waveform can be synthesized and used as a calculable noise source for calibrating the… 

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