A Cryo-CMOS DAC-Based 40-Gb/s PAM4 Wireline Transmitter for Quantum Computing
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Abstract:
Addressing the advancement toward large-scale quantum computers, this article presents the first four-level pulse amplitude modulation (PAM4) wireline transmitter (TX) operating at cryogenic temperatures (CTs). With quantum computers scaling up toward thousands of quantum bits (qubits), but having too limited fidelity for robust operation, continuous rounds of quantum error correction (…