Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Constrained Quantum Optimization via Iterative Warm-Start XY-Mixers
David Bucher, Maximilian Janetschek, Michael Poppel +3 more·Apr 2, 2026
The Quantum Approximate Optimization Algorithm (QAOA) is a leading hybrid heuristic for combinatorial optimization, but efficiently handling hard constraints remains a significant challenge. XY-mixers successfully confine quantum state evolution to a...
Towards Chemically Accurate and Scalable Quantum Simulations on IQM Quantum Hardware: A Quantum-HPC Hybrid Approach
Anurag K. S. V., Ashish Kumar Patra, Manas Mukherjee +5 more·Apr 2, 2026
We present a large-scale experimental study of quantum-computing-based molecular simulation carried out on IQM's Sirius 24-qubit superconducting processor, utilizing up to 16 operational qubits. The work employs Sample-based Quantum Diagonalization (...
Quantum-Inspired Geometric Classification with Correlation Group Structures and VQC Decision Modeling
Nishikanta Mohanty, Arya Ansuman Priyadarshi, Bikash K. Behera +1 more·Apr 2, 2026
We propose a geometry-driven quantum-inspired classification framework that integrates Correlation Group Structures (CGR), compact SWAP-test-based overlap estimation, and selective variational quantum decision modelling. Rather than directly approxim...
Quantum-Enhanced Processing with Tensor-Network Frontends for Privacy-Aware Federated Medical Diagnosis
Hiroshi Yamauchi, Anders Peter Kragh Dalskov, Hideaki Kawaguchi +1 more·Apr 2, 2026
We propose a privacy-aware hybrid framework for federated medical image classification that combines tensor-network representation learning, MPC-secured aggregation, and post-aggregation quantum refinement. The framework is motivated by two practical...
Numerically Optimizing Shortcuts to Adiabaticity: A Hybrid Control Strategy
Bo Xing, Jesús G. Parejo, Sofía Martínez-Garaot +2 more·Apr 1, 2026
Achieving fast, excitation-free quantum control is a vital challenge in modern quantum technologies. In many cases, shortcuts to adiabaticity enable fast adiabatic-like protocols, yet determining control parameters that satisfy practical constraints ...
FerBo: a noise resilient qubit hybridizing Andreev and fluxonium states
J. J. Caceres, D. Sanz Marco, J. Ortuzar +6 more·Apr 1, 2026
We propose a novel superconducting quantum circuit that should be robust against both relaxation and dephasing over a wide and experimentally accessible parameter range. The circuit consists of a parallel arrangement of a large inductance, a small ca...
Simultaneous operation of an 18-qubit modular array in germanium
J. J. Dijkema, X. Zhang, A. Bardakas +8 more·Apr 1, 2026
Utility-scale quantum computing requires the integration and operation of a large-scale qubit register. Semiconductor spin qubits are a primary candidate for this, due to the prospects of building integrated hybrid quantum-classical architectures. Ho...
Tunable information insulation induced by constraint mismatch
Akshay Panda, Anwesha Chattopadhyay·Apr 1, 2026
We study a composite model of two $1D$ $PXP$ chains with dual constraints, forming a junction that acts as an infinite kinematic barrier to quantum information exchange. Moreover, the hard wall at the junction which acts as a perfect reflector, preve...
Beyond Perturbation Theory: A Resolvent-Based Framework for Strongly Correlated Many-Body Systems
Zhi-qiang Huang, Qing-yu Cai·Apr 1, 2026
Traditional perturbation theory, based on local analyticity (Taylor expansion), often fails in many-body systems with exponentially small energy gaps and strong interactions. This work presents an alternative methodological framework built on two cor...
Hybrid Classical--Quantum Optimization of Wireless Routing Using QAOA and Quantum Walks
Eric Howard, Hardique Dasore, Hom Nath Dhungana +4 more·Apr 1, 2026
Routing in wireless communication networks is shaped by mobility, interference, congestion, and competing service requirements, making route selection a high-dimensional constrained optimization problem rather than a simple shortest-path task. This p...
Junction-Intrinsic Dissipation in Hybrid Superconductor-Semiconductor Gatemon Qubits
Zhenhai Sun, David Feldstein-Bofill, Ksenia Shagalov +10 more·Mar 31, 2026
Superconducting transmon qubits based on hybrid superconductor-semiconductor Josephson junctions (gatemons) offer gate tunability, but their relaxation times remain well below those of state-of-the-art transmons, and the origin of this discrepancy is...
Multipartite controlled-NOT gates using molecules and Rydberg atoms
Yi-Han Bai, Yue Wei, Chi Zhang +2 more·Mar 31, 2026
We propose high-fidelity controlled-NOT (CNOT) gates in a hybrid system of polar molecules and Rydberg atoms based on the unconventional Rydberg pumping mechanism. By combining the rich internal structure of polar molecules with the strong dipole-dip...
On the Entanglement Entropy Distribution of a Hybrid Quantum Circuit
Jeonghyeok Park, Hyukjoon Kwon, Hyunseok Jeong·Mar 31, 2026
We investigate the distribution of entanglement entropy in hybrid quantum circuits consisting of random unitary gates and local measurements applied at a finite rate. We demonstrate that higher moments of the entanglement entropy distribution, such a...
Entanglement between an NV Center and Chiral Photons in a Topological SWCNT Plasmonic Microtoroid
Fang-Yu Hong·Mar 31, 2026
We present a theoretical proposal for a hybrid solid-state quantum node based on a single nitrogen-vacancy (NV) center coupled to a topological single-walled carbon nanotube (SWCNT) plasmonic microtoroid. The SWCNT ring supports deeply sub-wavelength...
Quantum heat transport in nonequilibrium anisotropic Dicke model
Kong Junran, Mao Mang, Liu Huan +1 more·Mar 31, 2026
Nonequilibrium heat transport and quantum thermodynamics in light-matter interacting systems have received increasing attention. Quantum thermal devices, e.g., heat valve and head diode, have been realized. Recently, it has been discovered that the a...
Hybrid Quantum-Classical AI for Industrial Defect Classification in Welding Images
Akshaya Srinivasan, Xiaoyin Cheng, Jianming Yi +4 more·Mar 30, 2026
Hybrid quantum-classical machine learning offers a promising direction for advancing automated quality control in industrial settings. In this study, we investigate two hybrid quantum-classical approaches for classifying defects in aluminium TIG weld...
Iterative Optimization with Partial Convergence Guarantees on Neutral Atom Quantum Computers
Cédrick Perron, Yves Bérubé-Lauzière, Victor Drouin-Touchette·Mar 30, 2026
Neutral atom quantum computers (NAQCs) have emerged as a promising platform for solving the maximum weighted independent set (MWIS) problem. However, analog quantum approaches face two key limitations: constraints of the atomic layout on realizable g...
Q-DIVER: Integrated Quantum Transfer Learning and Differentiable Quantum Architecture Search with EEG Data
Junghoon Justin Park, Yeonghyeon Park, Jiook Cha·Mar 30, 2026
Integrating quantum circuits into deep learning pipelines remains challenging due to heuristic design limitations. We propose Q-DIVER, a hybrid framework combining a large-scale pretrained EEG encoder (DIVER-1) with a differentiable quantum classifie...
Adiabatic dressing of quantum enhanced Markov chains
Wen Ting Hsieh, Alev Orfi, Dries Sels·Mar 30, 2026
Quantum-enhanced Markov chain Monte Carlo, a hybrid quantum-classical algorithm in which configurations are proposed by a quantum proposer and accepted or rejected by a classical algorithm, has been introduced as a possible method for robust quantum ...
Hybrid QPE-Ansatz Strategy for Reliable Excited-State Variational Quantum Deflation
Young Kyun Ahn, Young Min Rhee·Mar 30, 2026
We introduce a spin $z$-component ($S_{z}$) conserving symmetry-preserving ansatz and a shallow quantum phase estimation (QPE) routine of spin $x$ ($S_x$), and combine them into a spin-filtering variational quantum deflation (sfVQD) scheme for noisy ...