Large-scale modular quantum-computer architecture with atomic memory and photonic interconnects

By Christopher R. Monroe, Robert Raussendorf, A. Ruthven, K. Brown, Peter Maunz, Luming Duan, Jungsang Kim. 2012

689 citations recorded by the source corpus.

The practical construction of scalable quantum-computer hardware capable of executing nontrivial quantum algorithms will require the juxtaposition of different types of quantum systems. We analyze a modular ion trap quantum-computer architecture with a hierarchy of interactions that can scale to very large numbers of qubits. Local entangling quantum gates between qubit memories within a single register are accomplished using natural interactions between the qubits, and entanglement between separate registers is completed via a probabilistic photonic interface between qubits in different registers, even over large distances. We show that this architecture can be made fault tolerant, and demonstrate its viability for fault-tolerant execution of modest size quantum circuits.

Subfields: Artificial Intelligence

View Paper: https://www.semanticscholar.org/paper/0c73f108a19ce71785235766fd76b8b8ed571972

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In Artificial Intelligence

Citations in the corpus

Modular entanglement of atomic qubits using photons and phonons (2014, methodology): “For N 1 modules each with n 1 qubits and m n optical ports at each module, the number of overall phases is reduced by a factor of 1/N + (m/n)(2) compared to that for a fully connected set of nN qubits [4].”
The future of quantum computing with superconducting qubits (2022, background): “Performing calculations on a system like this with multiple tiers of connectivity is still a matter of research and development 131,132 .”
Freely Scalable Quantum Technologies using Cells of 5-to-50 Qubits with Very Lossy and Noisy Photonic Links (2014, methodology): “This would be consistent with ideas in the MUSIQC project [7].”
Experimental comparison of two quantum computing architectures (2017, background): “However, full connectivity between 20−100 trapped ion qubits appears possible [2] and a modular approach for scaling to much larger systems with high connectivity and distance-independent operations seems promising [35, 36].”
Dynamical Purification Phase Transition Induced by Quantum Measurements (2019, background): “[86] C.”
Deterministic delivery of remote entanglement on a quantum network (2017, background): “Their ratio, that we term the quantum link efficiency η link = rent/rdec [8, 15], quantifies how effectively entangled states can be preserved over the timescales necessary to generate them.”
Development of Quantum Interconnects (QuICs) for Next-Generation Information Technologies (2021, background): “These considerations have motivated the vision of a quantum modular architecture, in which separate quantum systems are incorporated into a quantum network via quantum interconnects [4], [6].”