Demonstration of the trapped-ion quantum-CCD computer architecture

• URL: http://arxiv.org/abs/2003.01293v4
• Date: Fri, 9 Apr 2021 01:54:20 GMT
• Title: Demonstration of the trapped-ion quantum-CCD computer architecture
• Authors: J. M. Pino, J. M. Dreiling, C. Figgatt, J. P. Gaebler, S. A. Moses, M. S. Allman, C. H. Baldwin, M. Foss-Feig, D. Hayes, K. Mayer, C. Ryan-Anderson, and B. Neyenhuis
• Abstract summary: We report on the integration of all necessary ingredients of the QCCD architecture into a programmable trapped-ion quantum computer. Using four and six qubit circuits, the system level performance of the processor is endowed by the fidelity of a teleported CNOT gate. Our work shows that the QCCD architecture built around these qubits will provide high performance quantum computers.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The trapped-ion QCCD (quantum charge-coupled device) architecture proposal lays out a blueprint for a universal quantum computer. The design begins with electrodes patterned on a two-dimensional surface configured to trap multiple arrays of ions (or ion crystals). Communication within the ion crystal network allows for the machine to be scaled while keeping the number of ions in each crystal to a small number, thereby preserving the low error rates demonstrated in trapped-ion experiments. By proposing to communicate quantum information by moving the ions through space to interact with other distant ions, the architecture creates a quantum computer endowed with full-connectivity. However, engineering this fully-connected computer introduces a host of difficulties that have precluded the architecture from being fully realized in the twenty years since its proposal. Using a Honeywell cryogenic surface trap, we report on the integration of all necessary ingredients of the QCCD architecture into a programmable trapped-ion quantum computer. Using four and six qubit circuits, the system level performance of the processor is quantified by the fidelity of a teleported CNOT gate utilizing mid-circuit measurement and a quantum volume measurement of $2^6=64$. By demonstrating that the low error rates achievable in small ion crystals can be successfully integrated with a scalable trap design, parallel optical delivery, and fast ion transport, the QCCD architecture is shown to be a viable path toward large quantum computers. Atomic ions provide perfectly identical, high-fidelity qubits. Our work shows that the QCCD architecture built around these qubits will provide high performance quantum computers, likely enabling important near-term demonstrations such as quantum error correction and quantum advantage.

Related papers

• Shuttling for Scalable Trapped-Ion Quantum Computers [2.8956730787977083]
  We propose an efficient shuttling schedule for Trapped-ion quantum computers. The proposed approach produces shuttling schedules with a close-to-minimal amount of time steps. An implementation of the proposed approach is publicly available as part of the open-source Munich Quantum Toolkit.
  arXiv  Detail & Related papers  (2024-02-21T19:00:04Z)
• QuantumSEA: In-Time Sparse Exploration for Noise Adaptive Quantum Circuits [82.50620782471485]
  QuantumSEA is an in-time sparse exploration for noise-adaptive quantum circuits. It aims to achieve two key objectives: (1) implicit circuits capacity during training and (2) noise robustness. Our method establishes state-of-the-art results with only half the number of quantum gates and 2x time saving of circuit executions.
  arXiv  Detail & Related papers  (2024-01-10T22:33:00Z)
• Scalable architecture for trapped-ion quantum computing using RF traps and dynamic optical potentials [0.0]
  In principle there is no fundamental limit to the number of ion-based qubits that can be confined in a single 1D register. Here we propose a holistic, scalable architecture for quantum computing with large ion-crystals. We show that these cells behave as nearly independent quantum registers, allowing for parallel entangling gates on all cells.
  arXiv  Detail & Related papers  (2023-11-02T12:06:49Z)
• Optimal Stochastic Resource Allocation for Distributed Quantum Computing [50.809738453571015]
  We propose a resource allocation scheme for distributed quantum computing (DQC) based on programming to minimize the total deployment cost for quantum resources. The evaluation demonstrates the effectiveness and ability of the proposed scheme to balance the utilization of quantum computers and on-demand quantum computers.
  arXiv  Detail & Related papers  (2022-09-16T02:37:32Z)
• Trapped Ions as an Architecture for Quantum Computing [110.83289076967895]
  We describe one of the most promising platforms for the construction of a universal quantum computer. We discuss from the physics involved in trapping ions in electromagnetic potentials to the Hamiltonian engineering needed to generate a universal set of logic gates.
  arXiv  Detail & Related papers  (2022-07-23T22:58:50Z)
• A high-fidelity quantum matter-link between ion-trap microchip modules [0.10835042482545287]
  We present a quantum matter-link in which ion qubits are transferred between adjacent quantum computing modules. We show that the link does not measurably impact the phase coherence of the qubit. Our work will facilitate the implementation of QCs capable of fault-tolerant utility-scale quantum computation.
  arXiv  Detail & Related papers  (2022-03-26T12:44:21Z)
• Recompilation-enhanced simulation of electron-phonon dynamics on IBM Quantum computers [62.997667081978825]
  We consider the absolute resource cost for gate-based quantum simulation of small electron-phonon systems. We perform experiments on IBM quantum hardware for both weak and strong electron-phonon coupling. Despite significant device noise, through the use of approximate circuit recompilation we obtain electron-phonon dynamics on current quantum computers comparable to exact diagonalisation.
  arXiv  Detail & Related papers  (2022-02-16T19:00:00Z)
• A trapped ion quantum computer with robust entangling gates and quantum coherent feedback [0.0]
  Chains of ions held in a linear Paul trap are a promising platform for constructing such quantum computers. We report on the construction of a small, five-qubit, universal quantum computer using $88textSr+$ ions in an RF trap.
  arXiv  Detail & Related papers  (2021-11-07T19:17:23Z)
• Hardware-Efficient, Fault-Tolerant Quantum Computation with Rydberg Atoms [55.41644538483948]
  We provide the first complete characterization of sources of error in a neutral-atom quantum computer. We develop a novel and distinctly efficient method to address the most important errors associated with the decay of atomic qubits to states outside of the computational subspace. Our protocols can be implemented in the near-term using state-of-the-art neutral atom platforms with qubits encoded in both alkali and alkaline-earth atoms.
  arXiv  Detail & Related papers  (2021-05-27T23:29:53Z)
• Interleaving: Modular architectures for fault-tolerant photonic quantum computing [50.591267188664666]
  Photonic fusion-based quantum computing (FBQC) uses low-loss photonic delays. We present a modular architecture for FBQC in which these components are combined to form "interleaving modules" Exploiting the multiplicative power of delays, each module can add thousands of physical qubits to the computational Hilbert space.
  arXiv  Detail & Related papers  (2021-03-15T18:00:06Z)
• Integrated optical multi-ion quantum logic [4.771545115836015]
  Planar-fabricated optics integrated within ion trap devices can make such systems simultaneously more robust and parallelizable. We use scalable optics co-fabricated with a surface-electrode ion trap to achieve high-fidelity multi-ion quantum logic gates. Similar devices may also find applications in neutral atom and ion-based quantum-sensing and timekeeping.
  arXiv  Detail & Related papers  (2020-02-06T13:52:01Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.