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

Encoding quantum information into a set of harmonic oscillators is considered a hardware
efficient approach to mitigate noise for reliable quantum information processing. Various …

Encoding a qubit in logical quantum states with wave functions characterized by disjoint
support and robust energies can offer simultaneous protection against relaxation and pure …

Artificial atoms realized by superconducting circuits offer unique opportunities to store and
process quantum information with high fidelity. Among them, implementations of circuits that …

Superconducting qubits with intrinsic noise protection offer a promising approach to improve
the coherence of quantum information. Crucial to such protected qubits is the encoding of …

We develop and characterize a symmetry-protected superconducting qubit that offers
simultaneous exponential suppression of energy decay from charge and flux noises, and …

The theory of circuit quantum electrodynamics has successfully analyzed superconducting
circuits on the basis of the classical Lagrangian, and the corresponding quantized …

Superinductors have a characteristic impedance exceeding the resistance quantum RQ≈
6.45 k Ω, which leads to a suppression of ground-state charge fluctuations. Applications …

Quantum information science harnesses the principles of quantum mechanics to realize
computational algorithms with complexities vastly intractable by current computer platforms …

We propose a protected qubit based on a modular array of superconducting islands
connected by semiconductor Josephson interferometers. The individual interferometers …