Moving beyond the Transmon: Noise-Protected Superconducting Quantum Circuits
András Gyenis, Agustin Di Paolo, Jens Koch, Alexandre Blais, Andrew A. Houck, David I. Schuster
DOI 10.1103/PRXQuantum.2.030101 · PRX Quantum
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Artificial atoms realized by superconducting circuits offer unique opportunities to store and process quantum information with high fidelity. Among them, implementations of circuits that harness intrinsic noise protection have been rapidly developed in recent years. These noise-protected devices constitute a new class of qubits in which the computational states are largely decoupled from local noise channels. The main challenges in engineering such systems are simultaneously guarding against both bit- and phase-flip errors, and also ensuring high-fidelity qubit control. Although partial noise protection is possible in superconducting circuits relying on a single quantum degree of freedom, the promise of complete protection can only be fulfilled by implementing multimode or hybrid circuits. This Perspective reviews the theoretical principles at the heart of these new qubits, describes recent experiments, and highlights the potential of robust encoding of quantum information in superconducting qubits.
Similar papers
Superconducting Nanocircuits for Topologically Protected Qubits
similarity 0.91Sergey Gladchenko et al. · 2008 · arXiv:0802.2295
Source status unknown — claims are unverified
Advances in Josephson Junction Materials and Processes Toward Practical Quantum Computing
similarity 0.90Hyunseong Kim et al. · 2025 · arXiv:2505.12724
Source status unknown — claims are unverified
Novel qubits in hybrid semiconductor-superconductor nanostructures
similarity 0.90Marta Pita-Vidal et al. · 2025 · arXiv:2512.23336
Source status unknown — claims are unverified
Building a bigger Hilbert space for superconducting devices, one Bloch state at a time
similarity 0.90Dat Thanh Le et al.
Source status unknown — claims are unverified
Decoherence-protected spin-photon quantum gates in a hybrid semiconductor-superconductor circuit
similarity 0.89Li Wang et al.
Source status unknown — claims are unverified
Protected Hybrid Superconducting Qubit in an Array of Gate-Tunable Josephson Interferometers
similarity 0.89Constantin Schrade et al.
Source status unknown — claims are unverified