Papers
Live trends in quantum computing research, updated daily from arXiv.
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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 ...
Study of Post Quantum status of Widely Used Protocols
Tushin Mallick, Ashish Kundu, R. Kompella·Mar 30, 2026
The advent of quantum computing poses significant threats to classical public-key cryptographic primitives such as RSA and elliptic-curve cryptography. As many critical network and security protocols depend on these primitives for key exchange and au...
A Resource-Aligned Hybrid Quantum-Classical Framework for Multimodal Face Anti-Spoofing
Wanqi Sun, Jungang Xu, Chenghua Duan·Mar 29, 2026
Embedding high-dimensional data into resource-limited quantum devices remains a significant challenge for practical quantum machine learning. In multimodal face anti-spoofing, while linear compression methods such as principal component analysis can ...
Benchmarking simulation of hybrid decoding scheme for parity-encoded spin systems
Yoshihiro Nambu·Mar 29, 2026
This paper presents classical benchmark simulations of a practical hybrid decoding scheme for parity-encoded spin systems, which is well-suited to the development of quantum annealing devices based on on-chip superconducting technology. We compared t...
Non-Unitary Quantum Machine Learning: Fisher Efficiency Transitions from Distributed Quantum Expressivity
Apoorv Kumar Masta, Srinjoy Ganguly, Shalini Devendrababu +3 more·Mar 28, 2026
Quantum machine learning has faced growing scrutiny over its practical advantages compared to classical approaches, particularly following dequantization results and large scale benchmarking studies that have challenged earlier optimistic claims. Thi...
NNQA: Neural-Native Quantum Arithmetic for End-to-End Polynomial Synthesis
Ziqing Guo, Jie Li, Yong Chen +1 more·Mar 28, 2026
Hybrid classical quantum learning is often bottlenecked by communication overhead and approximation error from generic variational ansatzes. In this study, we introduce Neural Native Quantum Arithmetic (NNQA), which compiles classically learned nonli...
Quantum Bit Error Rate Analysis in BB84 Quantum Key Distribution: Measurement, Statistical Estimation, and Eavesdropping Detection
Jaydeep Rath, Prajwal Panth, P. S. N. Bhaskar·Mar 28, 2026
Quantum Key Distribution (QKD) provides information-theoretic security by exploiting the principles of quantum mechanics. Among QKD protocols, the BB84 scheme remains the most widely adopted for both theoretical research and practical implementation....
Information-Theoretic Solutions for Seedless QRNG Bootstrapping and Hybrid PQC-QKD Key Combination
Juan Antonio Vieira Giestinhas, Timothy Spiller·Mar 27, 2026
This paper considers two challenges faced by practical quantum networks: the bootstrapping of seedless Quantum Random Number Generators (QRNGs) and the resilient combination of Post-Quantum Cryptography (PQC) and Quantum Key Distribution (QKD) keys. ...
Tunable anharmonicity in Sn-InAs nanowire transmons beyond the short junction limit
Amrita Purkayastha, Amritesh Sharma, Param J. Patel +11 more·Mar 27, 2026
The anharmonicity of a transmon qubit, defined as the difference in energy level spacing, is a key design parameter. In transmons built from hybrid superconductor-semiconductor Josephson elements, the anharmonicity is tunable with gate voltages that ...
An Online Approach for Entanglement Verification Using Classical Shadows
Marwa Marso, Sabrina Herbst, Jadwiga Wilkens +3 more·Mar 27, 2026
Quantum measurements are slow, while classical processors are fast, yet existing hybrid protocols never exploit this asymmetry. In this work, we propose an alternative formulation of classical estimators as online algorithms that are updated incremen...
ParaQAOA: Efficient Parallel Divide-and-Conquer QAOA for Large-Scale Max-Cut Problems Beyond 10,000 Vertices
Po-Hsuan Huang, Xie-Ru Li, Chi Chuang +2 more·Mar 27, 2026
Quantum Approximate Optimization Algorithm (QAOA) has emerged as a promising solution for combinatorial optimization problems using a hybrid quantum-classical framework. Among combinatorial optimization problems, the Maximum Cut (Max-Cut) problem is ...
On the integrability structure of the deformed rule-54 reversible cellular automaton
Chiara Paletta, Tomaž Prosen·Mar 26, 2026
We study quantum and stochastic deformations of the rule-54 reversible cellular automaton (RCA54) on a 1+1-dimensional spatiotemporal lattice, focusing on their integrability structures in two distinct settings. First, for the quantum deformation, wh...
High-Fidelity Quantum State Transfer in Multimode Resonators via Tunable Pulses
Yuanning Chen, Xinxin Yang, Simon Gröblacher·Mar 26, 2026
Quantum state transfer between distant nodes is essential for distributed quantum information processing. Existing protocols are typically optimized for specific coupling regimes, such as adiabatic dark-state transfer in the single-mode limit and pit...