Resource-efficient dissipative entanglement of two trapped-ion qubits

Abstract

We demonstrate a simplified method for dissipative generation of an entangled state of two trapped-ion qubits. Our implementation produces its target state faster and with higher fidelity than previous demonstrations of dissipative entanglement generation and eliminates the need for auxiliary ions. The entangled singlet state is generated in $\sim$7 ms with a fidelity of 0.949(4). The dominant source of infidelity is photon scattering. We discuss this error source and strategies for its mitigation.

12 pages, 6 figures

References in corpus (10)

• QuTiP 2: A Python framework for the dynamics of open quantum systems
• An Open-System Quantum Simulator with Trapped Ions
• Dissipative preparation of entanglement in optical cavities
• Quantum harmonic oscillator state synthesis by reservoir engineering
• Trapped-ion quantum logic gates based on oscillating magnetic fields
• Errors in trapped-ion quantum gates due to spontaneous photon scattering
• Dissipative preparation of steady Greenberger-Horne-Zeilinger states for Rydberg atoms with quantum Zeno dynamics
• Dissipative preparation of W states in trapped ion systems
• Detection-Enhanced Steady State Entanglement with Ions
• Generation of a maximally entangled state using collective optical pumping

Cited by in corpus (7)

• Engineered Dissipation for Quantum Information Science
• Trade off-Free Entanglement Stabilization in a Superconducting Qutrit-Qubit System
• Many-Body Open Quantum Systems
• Generation of a maximally entangled state using collective optical pumping
• Steady-state entanglement generation for non-degenerate qubits
• Nonunitary Gate Operations by Dissipation Engineering
• Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe