Researchers achieved nearly 30 dB of quantum-limited gain across ~1 GHz bandwidth by cascading two SNAIL-based traveling-wave parametric amplifiers, combining ultra-low noise and high gain for quantum information processing.

Researchers achieved nearly 30 dB of quantum-limited gain across ~1 GHz bandwidth by cascading two SNAIL-based traveling-wave parametric amplifiers, combining ultra-low noise and high gain for quantum information processing.