Pulse Patterns for the Josephson Arbitrary Waveform Synthesizer, CPEM 2024 abstract

Description

Delta-sigma algorithms are used to determine the desired sequence of quantum-based voltage pulses used by the Josephson Arbitrary Waveform Synthesizer (JAWS) to create calculable voltage waveforms. This data set contains a comparison (Fig 1. of the CPEM 2024 abstract) of a 1 kHz pulse pattern with rms amplitude of 2 mV without post-processing and with post-processing which modifies the problematic pulse pattern to remove incorrect pulses at the 0.75 ms pattern wrap point. In the time-domain, the pulse patterns are low-pass filtered at 30 MHz and the residuals relative to the 1 kHz ac signal are also shown. This data set also contains spectra which show the pulse patterns' voltage relative to the fundamental in the frequency domain.

Resources

Name Format Description Link
0 Data used in the bottom plot of Figure 1 of [1]. Versus frequency (column 1, Hz), we plot the FFT of the same pulse patterns as a voltage relative to the fundamental for the pattern generated without post-processing (red curve, column 2, dBc) and with post-processing (green curve, column 3, dBc). https://data.nist.gov/od/ds/mds2-3167/PostProcComparison_ver3_bottom.txt
47 A README file describing the data set. https://data.nist.gov/od/ds/mds2-3167/README.txt
0 Data used in the top and middle plots of Figure 1 of [1]. Versus time (column 1, seconds), we plot a 1 kHz pulse pattern with rms amplitude of 2 mV that is low-pass filtered at 30 MHz and generated without post-processing (red curve, column 2, V) with residuals relative to the 1 kHz ac signal (top black curve, column 3, V), and after post-processing which modifies the problematic pulse pattern to remove incorrect pulses at the 0.75~ms pattern wrap point (green curve, column 4, V) with residuals (middle black curve, column 5, V). https://data.nist.gov/od/ds/mds2-3167/PostProcComparison_ver3_topmiddle.txt

Tags

  • superconducting-integrated-circuits
  • signal-synthesis
  • josephson-junction-arrays
  • digital-analog-conversion
  • voltage-measurement

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