Couplings Archives - IEEE Transactions on Quantum Engineering

Measurement-Informed Safe Reinforcement Learning for Quantum Battery Charging via Harmonic-Syndrome Diagnostics and BMS Constraints

March 3, 2026Sangkeum Lee, Beomdo Park, Junseong Park, Hyeonseok Jang, Hoon Jeong, Taewook HeoQuantum ComputingBatteries, Battery charge measurement, Couplings, Feature extraction, Hardware, Harmonic analysis, Pipelines, Protocols, Reinforcement learning, Safety

Abstract: Quantum batteries promise ultrafast energy storage but are highly sensitive to noise, drift, and hardware constraints, making safe high-performance charging a central challenge for noisy intermediate-scale quantum devices. We propose a measurement-informed safe control framework that couples harmonic-spectrum-based syndrome diagnostics—H2/H1, H3/H1, and frequency drift—with a battery management system (BMS)-constrained curriculum reinforcement learning (RL) policy. […]

Optimal Control-Assisted Rapid Quantum State Transfer on 1-D Spin Chain

December 8, 2025Kai Zhang, Sen KuangQuantum InternetCouplings, Impurities, Protocols, Quantum entanglement, Quantum state, Qubit, Receivers, Semiconductor device measurement, Teleportation, Temperature measurement

Abstract: Traditional many-body teleportation relies on the strong interaction property of a quantum many-body system, which usually requires numerous qubits and entanglement resources, making it difficult to realize experimentally. A natural scheme is to use a 1-D spin chain with simple structure to realize many-body teleportation. In this article, we analyze the conditions for general […]

Transmon Qubit Modeling and Characterization for Dark Matter Search

November 14, 2025Roberto Moretti, Danilo Labranca, Pietro Campana, Rodolfo Carobene, Marco Gobbo, Manuel A. Castellanos-Beltran, David Olaya, Peter F. Hopkins, Leonardo Banchi, Matteo Borghesi, Alessandro Candido, Stefano Carrazza, Hervè Atsè Corti, Alessandro D Elia, Marco Faverzani, Elena Ferri, Angelo Nucciotti, Luca Origo, Andrea Pasquale, Alex Stephane Piedjou Komnang, Alessio Rettaroli, Simone Tocci, Claudio Gatti, Andrea GiacheroQuantum Sensing & MetrologyCapacitance, Coherence time, Couplings, Dark matter, Magnetic fields, Photonics, Physics, Qubit, Resonant frequency, Transmission line measurements

Abstract: This study presents the design, simulation, and experimental characterization of a superconducting transmon qubit circuit prototype for potential applications in dark matter detection experiments. We describe a planar circuit design featuring two noninteracting transmon qubits, one with fixed frequency and the other flux tunable. Finite-element simulations were employed to extract key Hamiltonian parameters and […]

Spatiotemporal Multiplexed Rydberg Receiver

September 29, 2023Samuel H. KnarrQuantum Computer ArchitectureComputer architecture, Couplings, Laser beams, Measurement by laser beam, Probes, Radio frequency, Receivers

Rydberg states of alkali atoms, where the outer valence electron is excited to high principal quantum numbers, have large electric dipole moments allowing them to be used as sensitive, wideband, electric field sensors. These sensors use electromagnetically induced transparency (EIT) to measure incident electric fields. The characteristic timescale necessary to establish EIT determines the effective […]

Quantum Control of Optically Active Artificial Atoms With Surface Acoustic Waves

November 2, 2022Michael ChoquerOpen Access, Physical ImplementationsAtom optics, Couplings, Optical resonators, Optical surface waves, Quantum dots, Substrates, Surface acoustic waves

Surface acoustic waves (SAWs) are a versatile tool for realizing coherent quantum interfaces between various solid-state qubits spanning microwave to optical frequencies. Through strain, electric, or magnetic fields associated with acoustic waves, qubit states can be controlled and measured with exquisite precision for applications in quantum information processing, memory, transduction, and sensing. In this review, […]

Quantum Engineering With Hybrid Magnonic Systems and Materials (Invited Paper)

February 8, 2021David D. Awschalom; Chunhui Rita Du; Rui He; F. Joseph Heremans; Axel Hoffmann; Justin Hou; Hidekazu Kurebayashi; Yi Li; Luqiao Liu; Valentine Novosad; Joseph Sklenar; Sean E. Sullivan; Dali Sun; Hong Tang; Vasyl Tyberkevych; Cody Trevillian; Adam W. Tsen; Leah R. Weiss; Wei Zhang; Xufeng Zhang; Liuyan Zhao; Ch. W. Zollitsch.Open Access, Quantum Computer Architecture, Quantum InformationCouplings, Magnetic resonance, Magnetoacoustic effects, Optical sensors, Resonators, Superconducting magnets, Superconducting microwave devices

Quantum technology has made tremendous strides over the past two decades with remarkable advances in materials engineering, circuit design, and dynamic operation. In particular, the integration of different quantum modules has benefited from hybrid quantum systems, which provide an important pathway for harnessing different natural advantages of complementary quantum systems and for engineering new functionalities. […]

Hybrid Dissipative and Dispersive Optomechanically Induced Transparency

February 3, 2021Yong-Pan Gao; Daquan Yang; Peng-Fei Lu; Chuan WangOpen Access, Quantum InformationCouplings, Dispersion, Optical coupling, Optical imaging, Optical pumping, Optical resonators, Photonics

Traditionally, the optical interference and energy conversion could be modulated by dissipation and dispersion in nonlinear optomechanical systems. Here, in this article, we study the enhancement of dissipative coupling on transparency under generalized optomechanical coupling and theoretically illustrate the generation of optomechanically induced transparency with gain and interference tuning. It enables the enhancement of the […]

Voltage-Tunable Superconducting Resonators: A Platform for Random Access Quantum Memory

October 28, 2020Kasra Sardashti; Matthieu C. Dartiailh; Joseph Yuan; Sean Hart; Pat Gumann; Javad ShabaniOpen Access, Quantum InformationCouplings, Inductance, Logic gates, Qubit, Resonant frequency, Resonators, Superconducting microwave devices

In computing architectures, one important factor is the tradeoff between the need to couple bits of information (quantum or classical) to each other and to an external drive and the need to isolate them well enough in order to protect the information for an extended period of time. In the case of superconducting quantum circuits, […]