Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
From stable periodic orbits to many-body chaos: doubly tunable prethermalization via engineering of an emergent band structure
Jianan Wang, Yang Hou, Andrea Pizzi +3 more·Jul 14, 2026
We uncover a family of many-body periodic orbits in a periodically driven (Floquet) spin system away from the high-frequency limit. While linear stability analysis predicts that perturbed many-body trajectories remain close to stable periodic orbits,...
Parallel Hadamard Test
Soichiro Imamura, Synge Todo·Jul 14, 2026
The Hadamard test is a fundamental building block widely used in many quantum computing algorithms. It estimates the real or imaginary part of $\langle ψ\vert U \vert ψ\rangle$, where $\vert ψ\rangle$ is a quantum state and $U$ is a unitary operator....
Evaluating Health Misinformation in Low-Resource Languages: Integrating Small Language Models with a Culturally-Sensitive Responsible NLP Framework (Bangla as a Case Study)
Farnaz Farid, Raihan Alam, Al Al-Areqi +5 more·Jul 14, 2026
Artificial Intelligence (AI) technologies, while serving as a foundational enabler for modern social media and digital health services, exert a bivalent effect by simultaneously acting as a combatant against and a spread vector for misinformation. A ...
QUBO-Optimized Evidence Selection for Retrieval-Augmented Question Answering with Unconventional Solvers
Rahul Singh, Madhav Vadlamani·Jul 14, 2026
Retrieval-augmented question answering depends on selecting evidence passages that jointly support answer generation. However, many RAG pipelines rely on top-\(k\) ranking, where passages are selected mainly by individual relevance scores, even thoug...
Demonstration of tripartite cat states in two distinct classes of entanglement
May Chee Loke, Jonathan Schwinger, Kehui Yu +4 more·Jul 14, 2026
Entanglement is a cornerstone of quantum mechanics and an essential resource for quantum computation, communication, and metrology. While bipartite entanglement is extensively studied, genuine multipartite entangled states remain largely inaccessible...
Heisenberg Scaling in Many-Body Kinetic Uncertainty Relation via Quantum Feedback
Hayato Yunoki, Yoshihiko Hasegawa·Jul 14, 2026
Precision is a central figure of merit for quantum devices, including quantum clocks whose performance is determined by the stability of counting events. Kinetic uncertainty relations set fundamental limits on the precision of such counting observabl...
Experimental demonstration of scalable quantum blockchain with exponentially superior quantum communication complexity
Feng Xie, Ming-Yang Li, Yongqiang Du +11 more·Jul 14, 2026
To secure modern distributed digital infrastructures, quantum blockchains exploit quantum resources to achieve information-theoretic security and surpass the classical one-third fault-tolerance bound. However, existing high-fault-tolerant protocols f...
A fault-tolerant quantum blockchain deployed on commercial telecommunications network
Yongqiang Du, Chen-Xun Weng, Feng Xie +10 more·Jul 14, 2026
Popularized by the Bitcoin cryptocurrency, blockchain technology establishes a decentralized digital framework that utilizes cryptographic and consensus protocols to secure data against unauthorized modification. Consequently, blockchain has found br...
Quantum Codes from $r$-Nearly Self-Orthogonal Linear Codes via Jordan Canonical Form over $\mathbb{F}_{q^2}$
Liangdong Lu, Ruipan Yang, Yang Liu +2 more·Jul 14, 2026
We introduce a Jordan-canonical-form framework for constructing $q$-ary quantum stabilizer codes from arbitrary classical linear codes over $\F_{q^2}$. The framework does not require the classical linear code $\mathcal{C}$ to satisfy the dual-contain...
Nonequilibrium thermodynamics of the acoustoelectric quantum vacuum
Ryan O. Behunin, Andrew Shepherd, Francesco Intravaia +1 more·Jul 14, 2026
The quantum vacuum can assume thermal properties as a consequence of system kinematics, highlighting the nuance of our definition of particles in quantum field theory. Here, we explore this phenomenon in acoustoelectric systems, involving the interac...
Constant-Depth Multi-Product Formula for Trotter Error Mitigation in Near-Term Digital Quantum Simulation
Chan Bin Bark, Sangjin Lee, Kwang Jun Ahn +3 more·Jul 14, 2026
Digital quantum simulation of many-body dynamics faces a tension between algorithmic Trotter error and physical noise that accumulates with circuit depth. Typical higher-order product formulas mitigate the algorithmic error at the cost of deeper circ...
Nearly optimal polynomial approximations for the quantum singular value transform
Evan Rule·Jul 13, 2026
We introduce polynomial approximations of the even and odd step functions on the interval $[-1,1]$ with simple Chebyshev coefficients, making their numerical implementation straightforward. We derive rigorous error bounds and demonstrate that these p...
Roadmap Towards Quantum Entanglement Positron Emission Tomography (QE-PET)
Paweł Moskal, Shiva Abbaszadeh, Harmanjeet Singh Bilkhu +19 more·Jul 13, 2026
Annihilation photons are quantum entangled in their polarization, a property that is not accessible in state-of-the-art clinical Positron Emission Tomography (PET). This roadmap describes the current status of research in the emerging field of quantu...
Anticipating Decoder Side-channel Attacks in Fault-tolerant Quantum Computers
Shashvat Shukla, Dan E. Browne, Shin Nishio·Jul 13, 2026
As quantum computing emerges as an applied technology, there is a growing need to protect quantum computers against information security attacks. This work identifies a new class of side-channel attacks against fault-tolerant quantum computers, in wh...
Long baseline optical interferometric imaging with active phase stabilization
Joshua J. Collier, Leuca Patmore, John S. Wallis +3 more·Jul 13, 2026
Astronomical observations allow us to better our understanding of the universe. As we observe smaller and more distance features, we run into the diffraction limit of our observation system. This limit is a function of the wavelength observed and the...
Axion like particles multi-parameter sensing
Hassan Manshouri, Moslem Zarei, Mehdi Abdi·Jul 13, 2026
The search for the axion like particles (APLs)-one of the deepest puzzles in modern cosmology-may hold the key to understanding dark matter and dark energy. In this work, we introduce a setup taking advantage of the quantum metrology techniques to co...
Witnessing the Quantum Mpemba Effect with a Single Observable
J. M. Z. Choquehuanca, P. A. C. Obando, M. S. Sarandy +1 more·Jul 13, 2026
The Mpemba effect, in which a system farther from equilibrium relaxes faster than one closer to it, defies the intuition of nonequilibrium statistical mechanics. Here, we introduce a general framework to unambiguously witness this phenomenon based on...
Splitting Analysis for Yukawa Potential
Di Fang, Jiaqi Zhang·Jul 13, 2026
Splitting methods are among the most classical and fundamental tools for the simulation of quantum dynamics, and their importance has grown further with the rise of quantum computing. In this work, we analyze the Schrödinger equation with Yukawa pote...
Categorical Tensor-Graph Semantics for Quantum Algorithms
Naihong Hu, Ruining Li, Futao Wang·Jul 13, 2026
This paper systematically investigates quantum computing protocols from the intuitive perspective of categorical tensor-graph semantics within the category FHilb. While conventional Hilbert-space formalisms conceal the structural nature of quantum al...
Error correction on an array of superconducting qubits with defective components
Julien M. Drouet, Xanda C. Kolesnikow, Campbell K. McLauchlan +6 more·Jul 13, 2026
A solid-state quantum-computing architecture will require the fabrication of arrays of many coupled qubits. It is inevitable that this process will produce qubits and couplers with varying performance, with some components underperforming due to impe...