Numerical optimization of amplitude-modulated pulses in microwave-driven entanglement generation

Abstract

Microwave control of trapped ions can provide an implementation of high-fidelity two-qubit gates free from errors induced by photon scattering. Furthermore, microwave conductors may be embedded into a scalable trap structure, providing the chip-level integration of control that is desirable for scaling. Recent developments have demonstrated how amplitude modulation of the gate drive can permit a two-qubit entangling operation to become robust against motional mode noise and other experimental imperfections. Here, we discuss a method for the numerical optimization of the microwave pulse envelope to produce gate pulses with improved resilience, faster operation and higher energy efficiency.

arXiv comment3 figures

References in corpus (47)

• QuTiP 2: A Python framework for the dynamics of open quantum systems
• Trapped-Ion Quantum Computing: Progress and Challenges
• Quantum Computing with Very Noisy Devices
• Two-Bit Gates are Universal for Quantum Computation
• Randomized Benchmarking of Quantum Gates
• Multi-particle entanglement of hot trapped ions
• Reliable Quantum Computers
• High-fidelity two-qubit quantum logic gates using trapped calcium-43 ions
• High-fidelity quantum logic gates using trapped-ion hyperfine qubits
• High-fidelity preparation, gates, memory and readout of a trapped-ion quantum bit
• Demonstration of the trapped-ion quantum-CCD computer architecture
• High-Fidelity Universal Gate Set for ${}^9$Be${}^{+}$ Ion Qubits
• Long-lived qubit memory using atomic ions
• Ion-trap quantum logic using long-wavelength radiation
• Practical characterization of quantum devices without tomography
• Fast quantum logic gates with trapped-ion qubits
• Characterizing large-scale quantum computers via cycle benchmarking
• Trapped-ion quantum logic gates based on oscillating magnetic fields
• Single-qubit-gate error below 10^-4 in a trapped ion
• Trapped ion quantum computation with transverse phonon modes
• Parallel Entangling Operations on a Universal Ion Trap Quantum Computer
• High-fidelity laser-free universal control of two trapped ion qubits
• High-Fidelity Bell-State Preparation with ${}^{40}$Ca${}^{+}$ Optical Qubits
• Assessing the progress of trapped-ion processors towards fault-tolerant quantum computation
• Ion trap quantum gates with amplitude-modulated laser beams
• Correction of Arbitrary Errors in Population Inversion of Quantum Systems by Universal Composite Pulses
• Measuring Controlled-NOT and two-qubit gate operation
• Randomized Benchmarking of Multi-Qubit Gates
• Robust Trapped-Ion Quantum Logic Gates by Continuous Dynamical Decoupling
• Robust entanglement gates for trapped-ion qubits
• Coherent Error Suppression in Multi-Qubit Entangling Gates
• Robust and resource-efficient microwave near-field entangling ${}^9$Be${}^{+}$ gate
• Resilient entanglement gates for trapped ions
• Microwave Near-Field Quantum Control of Trapped Ions
• Entangling an arbitrary pair of qubits in a long ion crystal
• High fidelity quantum gates of trapped ions mediated by a dissipative bus mode
• Versatile laser-free trapped-ion entangling gates
• Fast dynamical decoupling of the Molmer-Sorensen entangling gate
• Integrated ${}^9$Be${}^{+}$ multi-qubit gate device for the ion-trap quantum computer
• Ultra-low vibration closed-cycle cryogenic surface-electrode ion trap apparatus
• Composite two-qubit gates
• Subspace benchmarking high-fidelity entangling operations with trapped ions
• Pulsed Dynamical Decoupling for Fast and Robust Two-Qubit Gates on Trapped Ions
• Laser-free trapped-ion entangling gates with simultaneous insensitivity to qubit and motional decoherence
• Multilayer ion trap with three-dimensional microwave circuitry for scalable quantum logic applications
• Hybrid Microwave Radiation Patterns for High-Fidelity Quantum Gates with Trapped Ions
• Trapped-Ion Entangling Gates Robust Against Qubit Frequency Errors

Cited by in corpus (2)

• Single-qubit gates with errors at the $10^{-7}$ level
• Robust and fast microwave-driven quantum logic for trapped-ion qubits