Hardware Archives - IEEE Transactions on Quantum Engineering

InterQnet: A Heterogeneous Full-Stack Approach to Co-designing Scalable Quantum Networks

March 18, 2026Joaquin Chung, Daniel Dilley, Ely Eastman, Alvin Gonzales, Kara Hokenstad, Md Shariful Islam, Varun Jorapur, Joseph Petrullo, Andy C. Y. Li, Bikun Li, Vasileios Niaouris, Anirudh Ramesh, Ansh Singal, Zeyu Ye, Caitao Zhan, Michael Bishof, Eric Chitambar, Jacob P. Covey, Alan Dibos, Xu Han, Liang Jiang, Prem Kumar, Jeffrey Larson, Zain H. Saleem, Rajkumar KettimuthuEarly AccessHardware, Optical fiber devices, Optical fiber networks, Optical fiber polarization, Optical fiber theory, Protocols, Quantum entanglement, Quantum repeaters, Repeaters, Scalability

Abstract: Quantum communications have progressed significantly, moving from a theoretical concept to small-scale experiments to recent metropolitan-scale demonstrations. As the technology matures, it is expected to revolutionize quantum computing in much the same way that classical networks revolutionized classical computing. Quantum communications will also enable breakthroughs in quantum sensing, metrology, and other areas. However, scalability […]

Beyond asymptotic scaling: Comparing functional quantum linear solvers

March 16, 2026Andreea-Iulia Lefterovici, Michael Perk, Debora Ramacciotti, Antonio F. Rotundo, S. E. Skelton, Martin SteinbachOpen AccessAccuracy, Approximation algorithms, Benchmark testing, Complexity theory, Costs, Hardware, Linear systems, Mathematical models, Quantum algorithm, Standards

Abstract: Solving systems of linear equations is a key subroutine in many quantum algorithms. In the last 15 years, many quantum linear solvers (QLS) have been developed, competing to achieve the best asymptotic worst-case complexity. Most QLS assume fault-tolerant quantum computers, so they cannot yet be benchmarked on real hardware. Because an algorithm with better […]

Advanced Quantum Annealing for the Bi-Objective Traveling Thief Problem: An ε-Constraint-Based Approach

March 16, 2026Nguyen Hoang Viet, Nguyen Xuan Tung, Trinh Van Chien, Won-Joo HwangOpen AccessAnnealing, Hardware, Interference, Linear programming, Optimization, Quantum annealing, Scalability, Transforms, Traveling salesman problems, Urban areas

Abstract: This paper addresses the Bi-Objective Traveling Thief Problem (BI-TTP), a challenging multi-objective optimization problem that requires the simultaneous optimization of travel cost and item profit. Conventional methods for the BI-TTP often face severe scalability issues due to the complex interdependence between routing and packing decisions, as well as the inherent complexity and large problem […]

Accelerating the Max-Cut problems via distributed Ising machine solvers

February 23, 2026Xing-yu Wu, Yi-Xin Zhang, Chen-rui Fan, Chuan WangOpen AccessApproximation algorithms, Computational modeling, Distributed computing, Hardware, Optimization, Partitioning algorithms, Quantum computing, Qubit, Scalability, Stationary state

Abstract: The Ising machine, as a quantum-inspired computing system, can be used to efficiently solve combinatorial optimization problems. Ongoing studies have positioned it to potentially surpass the performance limitations of traditional computers. However, such Ising machines also suffer from scalability as the solution quality becomes sub-optimal when the problem size increases. In this work, we […]

A Survey of Microwave-Implemented Superconducting Qubit Control and Readout Circuits

January 30, 2026Naheel Raza Rizvi, Meraj Ahmad, Arslan Shafique, Hadi Heidari, Martin Weides, Muhammad Ali Imran, Atif Raza JafriSpecial Section on Classical Control SystemsCircuits, Hardware, Josephson junctions, Quantum computing, Qubit, Resonant frequency, Superconducting integrated circuits, Superconducting microwave devices, Surveys, Time-frequency analysis

Abstract: Superconducting qubits are pivotal in advancing quantum computing, poised for scale but limited by the complexity and fidelity of their control and readout systems, relying on RF and signal processing infrastructure. This survey serves as a comprehensive and technically grounded review of control and readout architectures tailored for superconducting qubits. Synthesizing insights from device […]

Encrypted-State Quantum Compilation Scheme Based on Quantum Circuit Obfuscation for Quantum Cloud Platforms

January 29, 2026Chenyi Zhang, Tao Shang, Xueyi Guo, Yuanjing Zhang,Quantum SoftwareCircuits, Cloud computing, Cryptography, Hardware, Heuristic algorithms, Homomorphic encryption, Logic gates, Protection, Quantum circuit, Quantum computing

Abstract: With the rapid advancement of quantum computing, quantum compilation has become a crucial layer connecting high-level algorithms with physical hardware. In quantum cloud computing, compilation is performed on the cloud platforms, which expose user circuits to potential risks, such as structural leakage and output predictability. To address these issues, we propose the encrypted-state quantum […]

Black-Box Optimization of the Storage Location Assignment Problem in Logistics Centers Using an Annealing Algorithm

December 19, 2025Hiromitsu Kigure Takeshi Baba Makoto Taniguchi Hirotaka KajiQuantum ComputingAnnealing, Closed box, Genetic algorithms, Hardware, Legged locomotion, Linear programming, Logistics, Mathematical models, Optimization, Quantum annealing

Abstract: The manufacturing industry encounters numerous optimization problems, one of which is the optimization of storage location assignment (OSLA) problem in logistics. OSLA is a combinatorial optimization problem focused on improving the efficiency of picking operations in logistics centers. We explore quantum annealing (QA) as a potential solution to combinatorial optimization problems and investigate its […]

On-Demand Resource Allocation for a Quantum Network Hub

December 9, 2025Scarlett Gauthier, Thirupathaiah Vasantam, Gayane VardoyanQuantum InternetCalibration, Hardware, Numerical models, Optical switches, Photonics, Quantum entanglement, Quantum networks, Qubit, Resource management, Telephone sets

Abstract: To effectively support the execution of quantum network applications for multiple sets of user-controlled quantum nodes, a quantum network must efficiently allocate shared resources. We study traffic models for a type of quantum network hub called an entanglement generation switch (EGS), a device that allocates resources to enable entanglement generation between nodes in response […]

Feynman Meets Turing: Computability Aspects of Exact Circuit Synthesis, Gate Efficiency, and the Spectral Gap Conjecture

November 24, 2025Yannik N. Boeck, Holger Boche, Frank H.P. Fitzek,Quantum Computing6G mobile communication, Approximation algorithms, Circuit synthesis, Computational modeling, Hardware, Integrated circuit modeling, Logic gates, Quantum circuit, Quantum mechanics, Vectors

Abstract: We consider exact quantum circuit synthesis, quantum gate efficiency, and the spectral gap conjecture from the perspective of computable analysis. Circuit synthesis, in both its exact and its approximate variant, is fundamental to the circuit model of quantum computing. As an engineering problem, however, the practical and theoretical aspects of quantum circuit synthesis are […]

Hardware-Aware and Resource-Efficient Circuit Packing and Scheduling on Trapped-Ion Quantum Computers

November 14, 2025Miguel Palma, Shuwen Kan, Wenqi Wei, Juntao Chen, Kaixun Hua, Sara Mouradian, Ying MaoQuantum SoftwareCloud computing, Computer architecture, Computers, Hardware, Logic gates, Processor scheduling, Quantum circuit, Qubit, Resource management, Throughput

Abstract: The rapid expansion of quantum cloud services has led to long job queues due to single-tenant execution models that underutilize hardware resources. Quantum multiprogramming (QMP) mitigates this by executing multiple circuits in parallel on a single device, but existing methods target superconducting systems with limited connectivity, high crosstalk, and lower gate fidelity. Trapped-ion architecture, […]