Transforming stand-alone qubits into a functional, general-purpose quantum processing unit
requires an architecture where many-body quantum entanglement can be generated and …

Quantum computing promises to offer substantial speed-ups over its classical counterpart for
certain problems. However, the greatest impediment to realizing its full potential is noise that …

Noise in existing quantum processors only enables an approximation to ideal quantum
computation. However, for the computation of expectation values, these approximations can …

Full manipulation of a quantum system requires controlled evolution generated by nonlinear
interactions, which is coherent when the rate of nonlinearity is large compared with the rate …

Quantum computers built with superconducting artificial atoms already stretch the limits of
their classical counterparts. While the lowest energy states of these artificial atoms serve as …

We introduce a Xilinx RF System-on-Chip (RFSoC)-based qubit controller (called the
Quantum Instrumentation Control Kit, or QICK for short), which supports the direct synthesis …

Superconducting qubit lifetimes must be both long and stable to provide an adequate
foundation for quantum computing. This stability is imperiled by two-level systems (TLSs) …

Current state-of-the-art superconducting microwave qubits are cooled to extremely low
temperatures to avoid sources of decoherence. Higher qubit operating temperatures would …

In this work, drawing inspiration from the type of noise present in real hardware, we study the
output distribution of random quantum circuits under practical nonunital noise sources with …

Probabilistic error cancellation (PEC) is a technique that generates error-mitigated estimates
of expectation values from ensembles of quantum circuits. In this work we extend the …