Planar multilayer circuit quantum electrodynamics

Abstract

Experimental quantum information processing with superconducting circuits is rapidly advancing, driven by innovation in two classes of devices, one involving planar micro-fabricated (2D) resonators, and the other involving machined three-dimensional (3D) cavities. We demonstrate that circuit quantum electrodynamics can be implemented in a multilayer superconducting structure that combines 2D and 3D advantages. We employ standard micro-fabrication techniques to pattern each layer, and rely on a vacuum gap between the layers to store the electromagnetic energy. Planar qubits are lithographically defined as an aperture in a conducting boundary of the resonators. We demonstrate the aperture concept by implementing an integrated, two cavity-modes, one transmon-qubit system.

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Cited by in corpus (22)

• Microwave photonics with superconducting quantum circuits
• Building logical qubits in a superconducting quantum computing system
• To catch and reverse a quantum jump mid-flight
• Quantum information processing with bosonic qubits in circuit QED
• Nonadiabatic holonomic quantum computation with dressed-state qubits
• Implementing universal nonadiabatic holonomic quantum gates with transmons
• Quantum simulation of the spin-boson model with a microwave circuit
• Nonadiabatic holonomic quantum computation with all-resonant control
• High coherence superconducting microwave cavities with indium bump bonding
• Fault-tolerant preparation of approximate GKP states
• Inductively shunted transmon qubit with tunable transverse and longitudinal coupling
• Nonreciprocal Signal Routing in an Active Quantum Network
• Collective Strong Coupling with Homogeneous Rabi Frequencies using a 3D Lumped Element Microwave Resonator
• Vacuum-gap transmon qubits realized using flip-chip technology
• Hybrid Architecture for Engineering Magnonic Quantum Networks
• An argon ion beam milling process for native ${\text{AlO}}_{\text{x}}$ layers enabling coherent superconducting contacts
• State preparation of a fluxonium qubit with feedback from a custom FPGA-based platform
• The scattering coefficients of superconducting microwave resonators: I. Transfer-matrix approach
• Characterization of hidden modes in networks of superconducting qubits
• Bound photonic pairs in 2D waveguide quantum electrodynamics
• Microwave probing of bulk dielectrics using superconducting coplanar resonators in distant-flip-chip geometry
• Protecting information in a parametrically driven hybrid quantum system