Multi-mode architectures for noise-resilient superconducting qubits

Abstract

Great interest revolves around the development of new strategies to efficiently store and manipulate quantum information in a robust and decoherence-free fashion. Several proposals have been put forward to encode information into qubits that are simultaneously insensitive to relaxation and to dephasing processes. Among all, given their versatility and high degree of control, superconducting qubits have been largely investigated in this direction. Here, we present a survey on the basic concepts and ideas behind the implementation of novel superconducting circuits with intrinsic protection against decoherence at a hardware level. In particular, the main focus is on multi-mode superconducting circuits, the paradigmatic example being the so-called $0-\pi$ circuit. We report on their working principle and possible physical implementations based on conventional Josephson elements, presenting recent experimental realizations, discussing both fabrication methods and characterizations.

47 pages, review article

References in corpus (24)

• Supplementary information for "Quantum supremacy using a programmable superconducting processor"
• Non-Abelian Anyons and Topological Quantum Computation
• Charge insensitive qubit design derived from the Cooper pair box
• Surface codes: Towards practical large-scale quantum computation
• Microwave photonics with superconducting quantum circuits
• Superconducting Circuits and Quantum Information
• Dynamical decoupling and noise spectroscopy with a superconducting flux qubit
• Hybrid quantum-classical algorithms and quantum error mitigation
• Controlling the spontaneous emission of a superconducting transmon qubit
• Direct Fidelity Estimation from Few Pauli Measurements
• Complete universal quantum gate set approaching fault-tolerant thresholds with superconducting qubits
• Experimental evidence for a surface distribution of two-level systems in superconducting lithographed microwave resonators
• Implementation of low-loss superinductances for quantum circuits
• Suppressing relaxation in superconducting qubits by quasiparticle pumping
• Randomized Benchmarking of Multi-Qubit Gates
• Quantum Superinductor with Tunable Non-Linearity
• Dissipative dynamics of an open quantum battery
• Moving beyond the transmon: Noise-protected superconducting quantum circuits
• Decoherence of superconducting qubits caused by quasiparticle tunneling
• Scalable High-Performance Fluxonium Quantum Processor
• Anyons in Quantum Hall Interferometry
• Measurement of the Current-Phase Relation in Josephson Junctions Rhombi Chains
• Low-Loss Superconducting Nanowire Circuits Using a Neon Focused Ion Beam
• Entangling transmons with low-frequency protected superconducting qubits

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