Single ion-qubit exceeding one hour coherence time

Abstract

Realizing a long coherence time quantum memory is a major challenge of current quantum technology. Here, we report a single \Yb ion-qubit memory with over one hour coherence time, an order of improvement compared to the state-of-the-art record. The long coherence time memory is realized by addressing various technical challenges such as ambient magnetic-field noise, phase noise and leakage of the microwave oscillator. Moreover, systematically study the decoherence process of our quantum memory by quantum process tomography, which enables to apply the strict criteria of quantum coherence, relative entropy of coherence. We also benchmark our quantum memory by its ability in preserving quantum information, i.e., the robustness of quantum memory, which clearly shows that over 6000 s, our quantum memory preserves non-classical quantum information. Our results verify the stability of the quantum memory in hours level and indicate its versatile applicability in various scenarios.

arXiv comment7 pages, 7 figures

References in corpus (40)

• Quantum sensing
• Quantum Computing
• Decoherence Free Subspaces for Quantum Computation
• Quantum Coherence as a Resource
• Randomized Benchmarking of Quantum Gates
• Operational Resource Theory of Coherence
• Distance measures to compare real and ideal quantum processes
• Optimized Dynamical Decoupling in a Model Quantum Memory
• High-fidelity preparation, gates, memory and readout of a trapped-ion quantum bit
• Benchmarking an 11-qubit quantum computer
• Quantum process tomography of a controlled-NOT gate
• Intrinsic randomness as a measure of quantum coherence
• Room temperature quantum bit storage exceeding 39 minutes using ionized donors in 28-silicon
• Long-lived qubit memory using atomic ions
• Single-qubit quantum memory exceeding $10$-minute coherence time
• Blueprint for a microwave trapped-ion quantum computer
• Robust dynamical decoupling for quantum computing and quantum memory
• Single Ion Quantum Lock-In Amplifier
• Process tomography of ion trap quantum gates
• Ultrafast Gates for Single Atomic Qubits
• Cryogenic Trapped-Ion System for Large Scale Quantum Simulation
• Quantum Repeaters based on Single Trapped Ions
• Quantum repeaters with imperfect memories: cost and scalability
• Simplified motional heating rate measurements of trapped ions
• A long-lived Zeeman trapped-ion qubit
• Robust entanglement
• Hyperfine Coherence in the Presence of Spontaneous Photon Scattering
• Fluorescence during Doppler cooling of a single trapped atom
• Decoherence due to elastic Rayleigh scattering
• On the role of memory errors in quantum repeaters
• Measurement of the magnetic interaction between two electrons
• Long-time Low-latency Quantum Memory by Dynamical Decoupling
• Unforgeable Noise-Tolerant Quantum Tokens
• Single-Spin Spectrum-Analyzer for a Strongly Coupled Environment
• Universal and Operational Benchmarking of Quantum Memories
• Correcting detection error in quantum computation and state engineering through data processing
• Probing Time Dilation in Coulomb Crystals in a high-precision Ion Trap
• Probing Qubit Memory Errors at the Part-per-Million Level
• Systematic uncertainty due to background-gas collisions in trapped-ion optical clocks
• Quantum repeaters based on two species trapped ions

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