Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum linear solvers for quantum chemistry: prospects of exponential quantum advantage
Peniel Bertrand Tsemo, Kenji Sugisaki, Ishita Bhattacharjee +1 more·Jul 9, 2026
Quantum linear solvers (QLSs) can offer the potential for exponential quantum advantage in solving quantum chemical problems, but its assessment hinges on determining the condition number ($κ$) scaling, which itself is computationally challenging. Wh...
Möbius-Guided Diagonal-Gate Compilation with Native Multiqubit Controlled-Phase Gates on Neutral-Atom Processors
Hairuo Huang, Yanwu Gu, Chen Huang +4 more·Jul 9, 2026
Diagonal gates are ubiquitous primitives in quantum algorithms, from phase oracles, hypergraph-state preparation, and multi-control logic to Hamiltonian simulation of spin models and digitized lattice field theories, where Ising interactions and loca...
Efficient High-Dimensional Quantum Circuit Synthesis: From Multi-Controlled Gates to Isometries and Quantum Channels
Gui-Long Jiang·Jul 9, 2026
Circuit synthesis of multi-controlled gates is crucial for qudit ($d$-level) quantum computing. This paper presents efficient synthesis schemes that reduce the elementary gate count for multi-controlled single-qudit gates. For synthesizing general $(...
Overview of Applications of Quantum Computing in QCD
Germán Rodrigo·Jul 9, 2026
Quantum computing has emerged as a promising framework for addressing computationally demanding problems in collider physics. In recent years, a growing number of quantum algorithms have been proposed for applications ranging from event generation an...
Efficient Pauli-decomposition and multistage state-refinement for tensor network based differential equation solver
Vishwabhushan Suresh Gholap, Himadri Shekhar Dhar, Siddhartha Santra·Jul 9, 2026
Classical numerical techniques for solving partial differential equations (PDEs) become computationally expensive as the dimension of the discretized differential operator increases. For PDEs giving rise to Sturm--Liouville problems, tensor network (...
Continuous-Variable MIMO THz Quantum Secret Sharing: Gaussian-modulation and Passive-modulation
Leixin Wu, Jiayu Pan, Fangzhe Chen +3 more·Jul 9, 2026
Although quantum key distribution (QKD) enables information-theoretically secure key distribution, it is mainly designed for point-to-point communication and cannot directly support multi-user collaborative scenarios. To address this limitation, quan...
Adaptive Qubit Freezing Enables Robust Graph Partitioning for Divide-and-Conquer QAOA
Sokea Sang, Leanghok Hour, Dongmin Kim +1 more·Jul 9, 2026
Divide-and-conquer variants of the Quantum Approximate Optimization Algorithm (QAOA) provide a promising route for executing combinatorial optimization problems beyond the qubit capacity of near-term quantum devices. However, existing approaches rely...
Communication Advantages from Quantum Dense Network Coding
Ian George, Brian Doolittle·Jul 9, 2026
A central problem in quantum information theory is understanding how quantum resources can be used to communicate information more efficiently than classical resources. We introduce quantum dense network coding -- a protocol that transmits the output...
Decomposition-Based QAOA for Maximum Coverage Location Problem in Satellite Constellation Design
Divya Sisodiya, Amiratabak Bahengam, Hang Woon Lee +1 more·Jul 9, 2026
An increase in earth observation missions has increased the demand of efficient design and optimization of satellite constellations. Maximizing coverage of the target while effectively utilizing the limited orbital resources is one of the critical de...
Center-of-Mass Bounds and Harmonic Extremality
Arseny Pantsialei·Jul 9, 2026
We study the center-of-mass observable in one-dimensional many-body systems with translation-invariant interactions and extend the harmonic-rigidity mechanism from the one-body setting to an interacting many-body problem. We prove a sharp upper bound...
Equivariant Quantum Clustering with Differential Privacy: Parameter-Efficient Privacy-Preserving Analysis Across Heterogeneous Sensitive Datasets
B. M. Taslimul Haq, Md Arifur Rahman, Tawfiq Al Islam Foysal +2 more·Jul 9, 2026
Privacy-preserving clustering is critical for analyzing sensitive data in healthcare, cybersecurity, and enterprise applications, where maintaining data confidentiality must be balanced with analytical performance. This paper presents Equivariant Qua...
Experimental demonstration of entanglement sudden death induced by natural dissipation
Yan Wang, Hao-Long Zhang, Jia-Hao Lü +5 more·Jul 9, 2026
Any quantum system inevitably interacts with its natural environment, which can be modeled as a Markovian reservoir consisting of a continuum of electromagnetic field modes. The quantum coherence of qubits in a zero-temperature natural reservoir deca...
(2,m)-threshold quantum data hiding
Donghoon Ha, Jeong San Kim·Jul 9, 2026
We consider multiparty quantum state discrimination and present a multiparty quantum data-hiding scheme for one classical bit to be shared among multiple parties. In the proposed scheme, any pair of parties can collaborate to perfectly recover the hi...
Nuclear Many-Body Systems as Benchmarks for Quantum Computing
Sota Yoshida, Alessandro Baroni, Takayuki Miyagi +1 more·Jul 9, 2026
We present a framework for benchmarking quantum algorithms for nuclear many-body systems based on realistic nuclear Hamiltonians such as chiral effective field theory. To this effect we introduce a workflow that maps nuclear interactions in second qu...
Robust Quantum Learning through Hamiltonian Reservoir Computing
Youya Xu, Chengyong Yu, Sanjib Ghosh·Jul 9, 2026
Quantum learning provides a versatile paradigm for information processing by exploiting the intrinsic representational capacity of high-dimensional Hilbert spaces. Here, we investigate a Hamiltonian-encoding framework for quantum reservoir computing ...
Interfacial chirality-induced magnetic-field-free switching with high energy efficiency in all-vdW heterostructures
Kai-Xuan Zhang, Suik Cheon, Seungbok Lee +12 more·Jul 9, 2026
Chirality, a central concept across many scientific disciplines, continues to inspire the discovery of novel physical phenomena. In condensed matter physics, structural chirality - defined by the absence of mirror plane symmetries - has primarily bee...
A Theoretical Framework for Stochastic Activity Prediction in Tensor Accelerator Wallace-Tree Multipliers
Prashanthi Metku, Chandra Gandu·Jul 9, 2026
Tensor accelerator multipliers burn dynamic power on every clock cycle, even when sparse operands require very little internal switching. No existing technique addresses this: zero-detection requires exactly-zero operands, structural power gating req...
Optimizing LZSM protocol for high-fidelity gates in open-system fluxonium
Santiago Ferreyra, Valentın Reparaz, Maria Jose Sanchez +2 more·Jul 9, 2026
Quantum gates based on resonant Rabi oscillations are inherently slow for small-frequency qubits. They are also prone to errors due to counter-rotating terms. However, when the anharmonicity is sufficiently high, as in the fluxonium architecture, alt...
Smoothing Exponents and Decoupling in Semifinite von Neumann Algebras
Zhiwen Lin, Hongsen Qiu, Xinyu Zhang·Jul 9, 2026
We study the smoothing exponent of the max-relative entropy in semifinite von Neumann algebras. Our main result gives an exact exponent formula in this setting. The proof develops operator-algebraic replacements for the dimension-dependent tools used...
Procrustes Tomography -- reconstructing noisy quantum channels made easy
Josey Stevens, Reece Robertson, Sebastian Deffner·Jul 8, 2026
What is the most expensive part of quantum device characterization? Clearly, the answer is quantum process tomography. However, especially for noisy intermediate-scale quantum (NISQ) computers, a comprehensive understanding of the noisy quantum dynam...