Computer architecture Archives - IEEE Transactions on Quantum Engineering

Exploration of Design Alternatives for Reducing Idle Time in Shor’s Algorithm: A Study on Monolithic and Distributed Quantum Systems

September 17, 2025Moritz Schmidt Abhoy Kole Leon Wichette Rolf Drechsler Frank Kirchner Elie MounzerQuantum Computing, UncategorizedArithmetic, Computer architecture, Hardware, Logic gates, Optimization, Quantum circuit, Quantum computing, Qubit, Registers, Standards

Abstract: Shor’s algorithm is one of the most prominent quantum algorithms, yet finding efficient implementations remains an active research challenge. While many approaches focus on low-level modular arithmetic optimizations, a broader perspective can provide additional opportunities for improvement. By adopting a midlevel abstraction, we analyze the algorithm as a sequence of computational tasks, enabling systematic […]

Quantum Circuit Compilation for Trapped-Ion Processors With the Drive-Through Architecture

March 6, 2025Che-Ming Chang, Jie-Hong Roland Jiang, Dah-Wei Chiou, Ting Hsu, Guin-Dar LinQuantum SoftwareComputer architecture, Hardware, Heating systems, Ions, Logic gates, Program processors, Quantum cascade lasers, Quantum circuit, Quantum computing, Qubit

Abstract: Trapped-ion technologies stand out as leading contenders in the pursuit of quantum computing, due to their capacity for highly entangled qubits. Among many proposed trapped-ion architectures, the “drive-through” architecture has drawn increasing attention, notably for its remarkable ability to minimize heat generation, which is crucial for low-temperature operation and thermal noise reduction, thus reliable […]

Entanglement Routing in Quantum Networks: A Comprehensive Survey

February 11, 2025Amar Abane, Michael Cubeddu, Van Sy Mai, Abdella BattouQuantum InternetComputer architecture, Quantum channels, Quantum entanglement, Quantum repeaters, Repeaters, Reviews, Routing, Routing protocols, Surveys, Topology

Entanglement routing in near-term quantum networks consists of choosing the optimal sequence of short-range entanglements to combine through swapping operations to establish end-to-end entanglement between two distant nodes. Similar to traditional routing technologies, a quantum routing protocol uses network information to choose the best paths to satisfy a set of end-to-end entanglement requests. However, in […]

RSFQ All-Digital Programmable Multitone Generator for Quantum Applications

December 20, 2024João Barbosa, Jack C. Brennan, Alessandro Casaburi, M. D. Hutchings, Alex Kirichenko, Oleg Mukhanov, Martin WeidesEnabling TechnologiesComb filters, Computer architecture, Delays, Generators, Photon detectors, Quantum circuit, Qubit, Scalability, Shift registers, Standards

One of the most important and topical challenges of quantum circuits is their scalability. Rapid single flux quantum (RSFQ) technology is at the forefront of replacing current standard CMOS-based control architectures for a number of applications, including quantum computing and quantum sensor arrays. By condensing the control and readout to single-flux-quantum-based on-chip devices that are […]

BeSnake: A Routing Algorithm for Scalable Spin-Qubit Architectures

July 17, 2024Nikiforos Paraskevopoulos, Carmen G. Almudever, Sebastian FeldQuantum ComputingComputer architecture, Logic gates, Quantum circuit, Qubit, Routing, Task analysis, Topology

As quantum computing devices increase in size with respect to the number of qubits, two-qubit interactions become more challenging, necessitating innovative and scalable qubit routing solutions. In this work, we introduce beSnake, a novel algorithm specifically designed to address the intricate qubit routing challenges in scalable spin-qubit architectures. Unlike traditional methods in superconducting architectures that […]

FASQuiC: Flexible Architecture for Scalable Spin Qubit Control

June 5, 2024Mathieu Toubeix, Eric Guthmuller, Adrian Evans, Antoine Faurie, Tristan Meunier,Enabling TechnologiesCalibration, Computer architecture, Field programmable gate arrays, Frequency control, Generators, Hardware, Logic gates

As scaling becomes a key issue for large-scale quantum computing, hardware control systems will become increasingly costly in resources. This article presents a compact direct digital synthesis architecture for signal generation adapted for spin qubits that is scalable in terms of waveform accuracy and the number of synchronized channels. The architecture can produce programmable combinations […]

Advanced Shuttle Strategies for Parallel QCCD Architectures

June 3, 2024Weining Dai, Kevin A. Brown, Thomas G. RobertazziQuantum ComputingComputer architecture, Ions, Junctions, Logic gates, Quantum computing, Qubit, Topology

Trapped ions (TIs) are at the forefront of quantum computing implementation, offering unparalleled coherence, fidelity, and connectivity. However, the scalability of TI systems is hampered by the limited capacity of individual ion traps, necessitating intricate ion shuttling for advanced computational tasks. The quantum charge-coupled device (QCCD) framework has emerged as a promising solution, facilitating ion […]

Harnessing the Power of Long-Range Entanglement for Clifford Circuit Synthesis

May 16, 2024Willers Yang, Patrick RallQuantum ComputingCodes, Computer architecture, Integrated circuit modeling, Logic gates, Quantum entanglement, Qubit, Rotation measurement

In superconducting architectures, limited connectivity remains a significant challenge for the synthesis and compilation of quantum circuits. We consider models of entanglement-assisted computation where long-range operations are achieved through injections of large Greenberger–Horne–Zeilinger (GHZ) states. These are prepared using ancillary qubits acting as an “entanglement bus,” unlocking global operation primitives such as multiqubit Pauli rotations […]

Network Anomaly Detection Using Quantum Neural Networks on Noisy Quantum Computers

January 29, 2024Alon Kukliansky, Marko Orescanin, Chad Bollmann, Theodore Huffmire,Quantum ComputingComputer architecture, Noise measurement, Protocols, Quantum computing, Qubit, Support vector machines, Training

The escalating threat and impact of network-based attacks necessitate innovative intrusion detection systems. Machine learning has shown promise, with recent strides in quantum machine learning offering new avenues. However, the potential of quantum computing is tempered by challenges in current noisy intermediate-scale quantum era machines. In this article, we explore quantum neural networks (QNNs) for […]

A Proposed Quantum Framework for Low-Complexity Quantum Simulation and Spectrum Estimation of Hankel-Patterned Systems

November 1, 2023Mostafizur Rahaman LaskarEnabling TechnologiesComputer architecture, Logic gates, Matrix decomposition, Signal processing, Signal processing algorithms, Sparse matrices, Symmetric matrices

The structured matrix completion problem (SMCP) is ubiquitous in several signal processing applications. In this article, we consider a fixed pattern, namely, the Hankel-structure for the SMCP under quantum formalism. By exploiting its structure, a lower-gate-complexity quantum circuit realization of a Hankel system is demonstrated. Further, we propose a quantum simulation algorithm for the Hankel-structured […]