Multiplexed trapped-ion quantum repeaters allow for high-rate communications between distant quantum computers, and the ability to co-trap multiple ion species means there is no need to compromise between qubit lifetime and interfacing capability. Here, the authors show a significant improvement in entanglement distribution rates by considering a time-multiplexed quantum repeater protocol and treating the time step as a free parameter in such networks.

arXiv:2105.06707Physical Review AFeb 25, 202230 citations

Demonstration of a Multiplexing Trapped Ion Quantum Processing Unit

F. Anmasser, M. Abu Zahra, K. Schüppert +9 more

quant-pharXiv:2605.16010May 18, 20260 citations

Bulletin of the American Physical Society

Progress towards a multiplexed, semiconductor ion trap for quantum computation

David R. Leibrandt, Robert Clark, Jaroslaw Labaziewicz, Kenneth R. Brown, Bernard Yurke, Richart E. Slusher, Isaac L. Chuang

Published Mar 7, 2007• 0 citations

OpenAlex

Related papers

Progress towards quantum computation with an ion trap

Mark S. Gulley, Richard Hughes, J.J. Gómez +11 more

APSApr 1, 19980 citations

Progress on ion trap quantum computation and simulation using two-dimensional ion crystals

Yukai Wu, L.-M. Duan

中国科学通报：英文版Sep 24, 20244 citations

Trapped-ion quantum computing: Progress and challenges

Colin Bruzewicz, John Chiaverini, Robert McConnell +1 more

Trapped ions are among the most promising systems for practical quantum computing (QC). The basic requirements for universal QC have all been demonstrated with ions, and quantum algorithms using few-ion-qubit systems have been implemented. We review the state of the field, covering the basics of how trapped ions are used for QC and their strengths and limitations as qubits. In addition, we discuss what is being done, and what may be required, to increase the scale of trapped ion quantum computers while mitigating decoherence and control errors. Finally, we explore the outlook for trapped-ion QC. In particular, we discuss near-term applications, considerations impacting the design of future systems of trapped ions, and experiments and demonstrations that may further inform these considerations.Trapped ions are among the most promising systems for practical quantum computing (QC). The basic requirements for universal QC have all been demonstrated with ions, and quantum algorithms using few-ion-qubit systems have been implemented. We review the state of the field, covering the basics of how trapped ions are used for QC and their strengths and limitations as qubits. In addition, we discuss what is being done, and what may be required, to increase the scale of trapped ion quantum computers while mitigating decoherence and control errors. Finally, we explore the outlook for trapped-ion QC. In particular, we discuss near-term applications, considerations impacting the design of future systems of trapped ions, and experiments and demonstrations that may further inform these considerations.

arXiv:1904.04178Applied Physics ReviewsMay 29, 20191,478 citations

Ion Trap for Quantum Computing: A Comprehensive Review

Joonho Bae

New Physics Sae MulliNov 27, 20240 citations

Multiplexed quantum repeaters based on dual-species trapped-ion systems

Prajit Dhara, Norbert M. Linke, Edo Waks A +2 more

arXiv:2105.06707Physical Review AFeb 25, 202230 citations

Demonstration of a Multiplexing Trapped Ion Quantum Processing Unit

F. Anmasser, M. Abu Zahra, K. Schüppert +9 more

A fault-tolerant quantum computer is expected to require thousands of qubits. Trapped ion architectures provide a modular approach where the quantum register is divided into multiple subregisters connected by physically moving the corresponding ions. Transporting ions at scale comes with several challenges such as the need to connect thousands of control lines to an ion trap chip. Multiplexing the required control voltages from few input signals to multiple electrodes offers a solution to this wiring challenge. Here we demonstrate a quantum processing unit that combines a surface ion trap with a time multiplexer via a sample-and-hold technique that initially charges electrodes to fixed voltages and disconnects them during qubit operations. We characterize the unit's performance by measuring motional heating rates below one phonon per second in both open and closed switch configurations. We further characterize the sample and hold process and find that sampling intervals below 50 ms are sufficient to keep expected gate errors from decaying charges during the hold phase below $10^{-4}$ . Our results indicate that the multiplexing scheme is compatible with high-fidelity operations.A fault-tolerant quantum computer is expected to require thousands of qubits. Trapped ion architectures provide a modular approach where the quantum register is divided into multiple subregisters connected by physically moving the corresponding ions. Transporting ions at scale comes with several challenges such as the need to connect thousands of control lines to an ion trap chip. Multiplexing the required control voltages from few input signals to multiple electrodes offers a solution to this wiring challenge. Here we demonstrate a quantum processing unit that combines a surface ion trap with a time multiplexer via a sample-and-hold technique that initially charges electrodes to fixed voltages and disconnects them during qubit operations. We characterize the unit's performance by measuring motional heating rates below one phonon per second in both open and closed switch configurations. We further characterize the sample and hold process and find that sampling intervals below 50 ms are sufficient to keep expected gate errors from decaying charges during the hold phase below $10^{-4}$. Our results indicate that the multiplexing scheme is compatible with high-fidelity operations.

quant-pharXiv:2605.16010May 18, 20260 citations

10^{-4}

. Our results indicate that the multiplexing scheme is compatible with high-fidelity operations.