High-Fidelity Readout using Ultralow-Loss Quantum Amplifiers for Fault-Tolerant Quantum Processors

Atlantic Quantum is developing low-error, scalable superconducting quantum hardware and systems from the ground up to propel the field into an era of practical, fault-tolerant quantum computing. We develop quantum bits (qubits), control electronics, and software with a fundamentally different approach from competitors in the U.S. (as well as those in Europe and China), which tend to use current-day “transmon”-style qubits and cumbersome microwave control. We will lead the way to simplified control schemes suitable for modern qubits such as “fluxonium”, which offer superior noise protection and hence much higher performance. The Atlantic Quantum founding team has recently demonstrated a record-breaking error-protected fluxonium prototype, which we will scale into a proof of concept within this project. Hardware is currently the biggest limiting factor and constraint on quantum computing’s progress – a more severe bottleneck than software and algorithms. Atlantic Quantum’s proposed innovation has the potential to overcome the hardware obstacles and unlock next-generation computing capabilities to strengthen the performance and security of systems across the Air Force and Joint Force.