Cross cross resonance gate
arXiv:2103.00024 · doi:10.1103/PRXQuantum.2.040336
Abstract
Implementation of high-fidelity swapping operations is of vital importance to execute quantum algorithms on a quantum processor with limited connectivity. We present an efficient pulse control technique, cross-cross resonance (CCR) gate, to implement iSWAP and SWAP operations with dispersively-coupled fixed-frequency transmon qubits. The key ingredient of the CCR gate is simultaneously driving both of the coupled qubits at the frequency of another qubit, wherein the fast two-qubit interaction roughly equivalent to the XY entangling gates is realized without strongly driving the qubits. We develop the calibration technique for the CCR gate and evaluate the performance of iSWAP and SWAP gates The CCR gate shows roughly two-fold improvement in the average gate error and more than 10~\% reduction in gate times from the conventional decomposition based on the cross resonance gate.
References in corpus (36)
- Supplementary information for "Quantum supremacy using a programmable superconducting processor"
- Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing
- Randomized Benchmarking of Quantum Gates
- State preservation by repetitive error detection in a superconducting quantum circuit
- Robust randomized benchmarking of quantum processes
- A simple formula for the average gate fidelity of a quantum dynamical operation
- Validating quantum computers using randomized model circuits
- Hybrid quantum-classical algorithms and quantum error mitigation
- Detecting arbitrary quantum errors via stabilizer measurements on a sublattice of the surface code
- Scalable Noise Estimation with Random Unitary Operators
- Procedure for systematically tuning up crosstalk in the cross resonance gate
- A simple all-microwave entangling gate for fixed-frequency superconducting qubits
- Quantum Process Tomography: Resource Analysis of Different Strategies
- Qubit-photon interactions in a cavity: Measurement induced dephasing and number splitting
- Experimental demonstration of fault-tolerant state preparation with superconducting qubits
- Using Sideband Transitions for Two-Qubit Operations in Superconducting Circuits
- Mitigation of readout noise in near-term quantum devices by classical post-processing based on detector tomography
- Effective Hamiltonian models of the cross-resonance gate
- Demonstration of weight-four parity measurements in the surface code architecture
- Tunable coupling of superconducting qubits
- Qiskit Pulse: Programming Quantum Computers Through the Cloud with Pulses
- Entanglement of two superconducting qubits in a waveguide cavity via monochromatic two-photon excitation
- Reducing unitary and spectator errors in cross resonance with optimized rotary echoes
- First-principles analysis of cross-resonance gate operation
- Detector Tomography on IBM 5-qubit Quantum Computers and Mitigation of Imperfect Measurement
- Microwave-activated conditional-phase gate for superconducting qubits
- Suppression of Unwanted Interactions in a Hybrid Two-Qubit System
- Selective darkening of degenerate transitions demonstrated with two superconducting quantum bits
- Implementation of the XY interaction family with calibration of a single pulse
- Operation and intrinsic error budget of a two-qubit cross-resonance gate
- Fast parametric two-qubit gates with suppressed residual interaction using a parity-violated superconducting qubit
- Demonstration of an All-Microwave Controlled-Phase Gate between Far Detuned Qubits
- A hybrid quantum-classical approach to mitigating measurement errors
- Local Sensing with the Multi-Level AC Stark Effect
- Metric Structure of the Space of Two-Qubit Gates, Perfect Entanglers and Quantum Control
- Reliable Characterization for Improving and Validating Accurate Quantum Operations
Cited by in corpus (14)
- Circuit knitting with classical communication
- Mitigating off-resonant error in the cross-resonance gate
- Native two-qubit gates in fixed-coupling, fixed-frequency transmons beyond cross-resonance interaction
- All-microwave manipulation of superconducting qubits with a fixed-frequency transmon coupler
- Taming quantum systems: A tutorial for using shortcuts-to-adiabaticity, quantum optimal control, and reinforcement learning
- Continuous quantum gate sets and pulse class meta-optimization
- Co-Designed Architectures for Modular Superconducting Quantum Computers
- Correction Formulas for the Mølmer-Sørensen Gate Under Strong Driving
- Remote Cross-resonance Gate between Superconducting Fixed-frequency Qubits
- Floquet Analysis of Frequency Collisions
- Overhead in Quantum Circuits with Time-Multiplexed Qubit Control
- Microwave-activated high-fidelity three-qubit gate scheme for fixed-frequency superconducting qubits
- Systematic Construction of Time-Dependent Hamiltonians for Microwave-Driven Josephson Circuits
- Review of Superconducting Qubit Devices and Their Large-Scale Integration