Control systems Archives - IEEE Transactions on Quantum Engineering

Design and Analysis of Digital Communication Within an SoC-Based Control System for Trapped-Ion Quantum Computing

March 31, 2023Nafis IrtijaEnabling TechnologiesControl systems, Hardware, Logic gates, Quantum computing, Qubit, Radio frequency, Throughput

Large-scale quantum information processing requires the use of quantum error-correcting codes to mitigate the effects of noise in quantum devices. Topological error-correcting codes, such as surface codes, are promising candidates, as they can be implemented using only local interactions in a 2-D array of physical qubits. Procedures, such as defect braiding and lattice surgery, can […]

Model-Predictive Quantum Control via Hamiltonian Learning

November 2, 2022MAISON CLOUÂTRÉOpen Access, Quantum InternetComputational modeling, Control systems, Optimization, Quantum state, Quantum system, Qubit, Tomography

This article proposes an end-to-end framework for the learning-enabled control of closed quantum systems. The proposed learning technique is the first of its kind to utilize a hierarchical design, which layers probing control, quantum state tomography, quantum process tomography, and Hamiltonian learning to identify both the internal and control Hamiltonians. Within this context, a novel […]

Timing Constraints Imposed by Classical Digital Control Systems on Photonic Implementations of Measurement-Based Quantum Computing

November 2, 2022John R. ScottOpen Access, Special Section on Classical Control SystemsComputer architecture, Control systems, Logic gates, Photonics, Quantum computing, Qubit, Timing

Most of the architectural research on photonic implementations of measurement-based quantum computing (MBQC) has focused on the quantum resources involved in the problem with the implicit assumption that these will provide the main constraints on system scaling. However, the “flying-qubit” architecture of photonic MBQC requires specific timing constraints that need to be met by the […]

Timing Constraints Imposed by Classical Digital Control Systems on Photonic Implementations of Measurement-Based Quantum Computing

May 19, 2022John R. Scott; Krishna C. BalramOpen Access, Quantum InformationComputer architecture, Control systems, Logic gates, Photonics, Quantum computing, Qubit, Timing

Distributed Quantum Computing and Network Control for Accelerated VQE

February 9, 2021Stephen DiAdamo; Marco Ghibaudi; James CruiseOpen Access, Quantum Computer Architecture, Quantum InformationComputers, Control systems, Hardware, Logic gates, Quantum algorithm, Quantum computing, Qubit

Interconnecting small quantum computers will be essential in the future for creating large-scale, robust quantum computers. Methods for distributing monolithic quantum algorithms efficiently are, thus, needed. In this article, we consider an approach for distributing the accelerated variational quantum eigensolver algorithm over arbitrary sized—in terms of number of qubits—distributed quantum computers. We consider approaches for […]