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A million qubit-scale quantum computer is essential to realize the quantum supremacy. Modern large-scale quantum computers integrate multiple quantum computers located in dilution refrigerators (DR) to overcome each DR's unscaling cooling budget. However,...

Scaling bottlenecks the making of digital quantum computers, posing challenges from both the quantum and the classical components. We present a classical architecture to cope with a comprehensive list of the latter challenges all at once, and implement it ...

Demonstrating small error rates by integrating quantum error correction (QEC) into an architecture of quantum computing is the next milestone towards scalable fault-tolerant quantum computing (FTQC). Encoding logical qubits with superconducting qubits ...

Quantum codes excel at correcting local noise but fail to correct leakage faults that excite qubits to states outside the computational space. Aliferis and Terhal [1] have shown that an accuracy threshold exists for leakage faults using gadgets called ...

The quantum algorithm by Harrow, Hassidim, and Lloyd solves a system of N linear equations and achieves exponential speedup over classical algorithms under certain conditions. The advantage to the algorithm is that log(N) rather than N registers are ...

Twisted rapid passage is a type of non-adiabatic rapid passage that generates controllablequantum interference effects that were first observed experimentally in 2003. It is shownthat twisted rapid passage sweeps can be used to implement a universal set ...