Qubit Zoo

Lumped-element broadband SNAIL parametric amplifier with on-chip pump filter for multiplexed readout

1 min read

Demonstrates a compact SNAIL parametric amplifier with an on-chip pump filter, flat 20 dB gain across up to 250 MHz, and simultaneous high-fidelity readout of two transmon qubits.

Key Results

  • 20 dB gain with less than 1 dB ripple across up to 250 MHz
  • Intermodulation products suppressed by more than 23 dB at the compression point
  • Two-qubit assignment fidelities of 99.51% and 98.55%

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