Standards Archives - IEEE Transactions on Quantum Engineering

Impact of High-Brightness Entangled Photon Pairs on CHSH Inequality Experiment

March 30, 2026Jin-Woo Kim, Heonoh Kim, June Koo Kevin RheeOpen AccessAttenuation, Brightness, Correlation, Detectors, Mathematical models, Photonics, Quantum entanglement, Quantum mechanics, Satellites, Standards

Abstract: Verifying the violation of Bell’s inequality is one of the most representative methods to demonstrate that entangled photon pairs prepared in a quantum optics-based system exhibit quantum properties. While experiments on Bell inequality violations have been theoretically well-established and extensively conducted to implement various quantum information technologies in laboratory settings, mathematical modeling for systematically […]

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 Access, Quantum ComputingAccuracy, 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 […]

Equivariant Quantum Approximate Optimization Algorithm

January 16, 2026Boris Tsvelikhovskiy, Ilya Safro, Yuri AlexeevQuantum ComputingApproximation algorithms, Heuristic algorithms, Linear programming, Machine learning algorithms, Mixers, Optimization, Partitioning algorithms, Quantum circuit, Standards, Stationary state

Abstract: Constructing effective mixer Hamiltonians is essential for enhancing the performance of the quantum approximate optimization algorithm (QAOA) in solving combinatorial optimization problems. In this work, we develop a systematic methodology for designing QAOA mixers that align with the symmetries of the classical objective function, with the goal of achieving values (mean, median, and minimum […]

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 […]

Generalized Quantum-Assisted Digital Signature

August 4, 2025Alberto Tarable; Rudi Paolo Paganelli; Elisabetta Storelli; Alberto Gatto; Marco FerrariQuantum InformationDigital signatures, Error analysis, Forgery, Hash functions, NIST, Protocols, Quantum channels, Quantum state, Qubit, Standards

This article introduces generalized quantum-assisted digital signature (GQaDS), an improved version of a recently proposed scheme whose information-theoretic security is inherited by adopting quantum key distribution keys for digital signature purposes. Its security against forging is computed considering a trial-and-error approach taken by the malicious forger, and GQaDS parameters are optimized via an analytical approach […]

Engineering Quantum Error Correction Codes Using Evolutionary Algorithms

February 5, 2025Mark A. Webster, Dan E. BrowneQuantum ComputingCodes, Computational modeling, Computers, Error analysis, Error correction codes, Evolutionary computation, Generators, Qubit, Standards, Vectors

Quantum error correction and the use of quantum error correction codes are likely to be essential for the realization of practical quantum computing. Because the error models of quantum devices vary widely, quantum codes that are tailored for a particular error model may have much better performance. For more about this article see link below. […]

Advance Sharing Procedures for the Ramp Quantum Secret Sharing Schemes With the Highest Coding Rate

January 17, 2025Ryutaroh MatsumotoQuantum InformationCryptography, Encoding, Finite element analysis, Hands, Proposals, Quantum state, Reviews, Standards, Symbols, Teleportation

Abstract: In some quantum secret sharing schemes, it is known that some shares can be distributed to participants before a secret is given to the dealer. However, it is unclear whether some shares can be distributed before a secret is given in the ramp quantum secret sharing schemes with the highest coding rate. This article […]

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 […]

Multidisk Clutch Optimization Using Quantum Annealing

August 9, 2024John D. Malcolm, Alexander Roth, Mladjan Radic, Pablo Martín-Ramiro, Jon Oillarburu, Borja Aizpurua, Román Orús, Samuel MugelQuantum SoftwareAnnealing, Friction, Manufacturing, Optimization, Quantum annealing, Standards, Vectors

In this article, we apply a quantum optimization algorithm to solve a combinatorial problem with significant practical relevance occurring in clutch manufacturing. It is demonstrated how quantum optimization can play a role in real industrial applications in the manufacturing sector. Using the quantum annealer provided by D-Wave Systems, we analyze the performance of the quantum […]

On Quantum Natural Policy Gradients

June 24, 2024André Sequeira, Luis Paulo Santos, Luis Soares BarbosaQuantum ComputingComplexity theory, Gradient methods, Optimization, Reinforcement learning, Stability analysis, Standards, Task analysis

This article delves into the role of the quantum Fisher information matrix (FIM) in enhancing the performance of parameterized quantum circuit (PQC)-based reinforcement learning agents. While previous studies have highlighted the effectiveness of PQC-based policies preconditioned with the quantum FIM in contextual bandits, its impact in broader reinforcement learning contexts, such as Markov decision processes, […]