High-Fidelity Readout in Circuit Quantum Electrodynamics Using the Jaynes-Cummings Nonlinearity

Abstract

We demonstrate a qubit readout scheme that exploits the Jaynes-Cummings nonlinearity of a superconducting cavity coupled to transmon qubits. We find that in the strongly-driven dispersive regime of this system, there is the unexpected onset of a high-transmission "bright" state at a critical power which depends sensitively on the initial qubit state. A simple and robust measurement protocol exploiting this effect achieves a single-shot fidelity of 87% using a conventional sample design and experimental setup, and at least 61% fidelity to joint correlations of three qubits.

5 pages, 4 figures

References in corpus (32)

• Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
• Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
• Demonstration of Two-Qubit Algorithms with a Superconducting Quantum Processor
• Approaching Unit Visibility for Control of a Superconducting Qubit with Dispersive Readout
• Preparation and Measurement of Three-Qubit Entanglement in a Superconducting Circuit
• Suppressing Charge Noise Decoherence in Superconducting Charge Qubits
• Climbing the Jaynes-Cummings Ladder and Observing its Sqrt(n) Nonlinearity in a Cavity QED System
• Controlling the spontaneous emission of a superconducting transmon qubit
• Phase preserving amplification near the quantum limit with a Josephson Ring Modulator
• An RF-Driven Josephson Bifurcation Amplifier for Quantum Measurements
• Quantum Non-demolition Detection of Single Microwave Photons in a Circuit
• Dispersive regime of circuit QED: photon-dependent qubit dephasing and relaxation rates
• Nonlinear response of the vacuum Rabi resonance
• Single-shot qubit readout in circuit Quantum Electrodynamics
• Single-shot qubit readout in circuit Quantum Electrodynamics
• Fast Reset and Suppressing Spontaneous Emission of a Superconducting Qubit
• Randomized benchmarking and process tomography for gate errors in a solid-state qubit
• State tomography of capacitively shunted phase qubits with high fidelity
• Nonlinear spectroscopy of photons bound to one atom
• Fabrication and characterization of superconducting circuit QED devices for quantum computation
• Two-Qubit State Tomography using a Joint Dispersive Read-Out
• Protocols for optimal readout of qubits using a continuous quantum nondemolition measurement
• Dispersive measurements of superconducting qubit coherence with a fast, latching readout
• Improved Superconducting Qubit Readout by Qubit-Induced Nonlinearities
• Response of the Strongly-Driven Jaynes-Cummings Oscillator
• Entanglement Metrology Using a Joint Readout of Superconducting Qubits
• Non-linear dispersive regime of cavity QED: The dressed dephasing model
• Measuring the Decoherence of a Quantronium Qubit with the Cavity Bifurcation Amplifier
• Scalable simultaneous multi-qubit readout with 99.99% single-shot fidelity
• Bandwidth and dynamic range of a widely tunable Josephson parametric amplifier
• Superconducting Quantum Interference Device Amplifiers with over 27 GHz of Gain-Bandwidth Product Operated in the 4 GHz--8 GHz Frequency Range
• Dynamical bistability in the driven circuit QED

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