Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Limits of Rank Recovery in Bilinear Observation Problems
Seungbeom Choi·Jan 13, 2026
Bilinear observation problems arise in many physical and information-theoretic settings, where observables and states enter multiplicatively. Rank-based diagnostics are commonly used in such problems to assess the effective dimensionality accessible ...
Directional Electrical Spiking, Bursting, and Information Propagation in Oyster Mycelium Recorded with a Star-Shaped Electrode Array
Andrew Adamatzky·Jan 13, 2026
Electrical activity in fungal mycelium has been reported in numerous species and experimental contexts, yet its spatial organisation and propagation remain insufficiently characterised. In this study we investigate the spatiotemporal structure of ele...
Mechanical Resonator-based Quantum Computing
Yu Yang, Igor Kladaric, Martynas Skrabulis +11 more·Jan 12, 2026
Hybrid quantum systems combine the unique advantages of different physical platforms with the goal of realizing more powerful and practical quantum information processing devices. Mechanical systems, such as bulk acoustic wave resonators, feature a l...
Quantum information and statistical complexity of hydrogen-like ions in Dunkl-Schrödinger system
Akash Halder, Amlan K. Roy, Debraj Nath·Jan 12, 2026
In this work, we present analytical solutions of Schrödinger equation for Coulomb potential in presence of a Dunkl reflection operator. Expressions are offered for eigenvalues, eigenfunctions and radial densities for H-isoelectronic series (Z=1-3). T...
Thermodynamic Recycling in Quantum Computing: Demonstration Using the Harrow-Hassidim-Lloyd Algorithm and Information Erasure
Nobumasa Ishida, Yoshihiko Hasegawa·Jan 12, 2026
Branch selection, including postselection, is a standard method for implementing nonunitary transformations in quantum algorithms. Conventionally, states associated with unsuccessful branches are discarded and treated as useless. Here we propose a ge...
Scalable Certification of Entanglement in Quantum Networks
Jing-Tao Qiu, D. M. Tong, Xiao-Dong Yu·Jan 12, 2026
Quantum networks form the backbone of long-distance quantum information processing. Genuine multipartite entanglement (GME) serves as a key indicator of network performance and overall state quality. However, the widely used methods for certifying GM...
Reply to Comment on "Properties and dynamics of generalized squeezed states"
Sahel Ashhab, Mohammad Ayyash·Jan 12, 2026
In our paper [1], our numerical simulations showed that, unlike displacement and conventional squeezing, higher-order squeezing exhibits oscillatory dynamics. Subsequently, Gordillo and Puebla pointed out that simulation results depend on whether the...
Direct temperature readout in nonequilibrium quantum thermometry
Yan Xie, Junjie Liu·Jan 12, 2026
Quantum thermometry aims to measure temperature in nanoscale quantum systems, paralleling classical thermometry. However, temperature is not a quantum observable, and most theoretical studies have therefore concentrated on analyzing fundamental preci...
Quantum state engineering of spin-orbit coupled ultracold atoms in a Morse potential
Yue Ban, Xi Chen, J. G. Muga +1 more·Jan 11, 2026
Achieving full control of a Bose-Einstein condensate can have valuable applications in metrology, quantum information processing, and quantum condensed matter physics. We propose protocols to simultaneously control the internal (related to its pseudo...
Counter-diabatic driving for fast spin control in a two-electron double quantum dot
Yue Ban, Xi Chen·Jan 11, 2026
The techniques of shortcuts to adiabaticity have been proposed to accelerate the "slow" adiabatic processes in various quantum systems with the applications in quantum information processing. In this paper, we study the counter-diabatic driving for f...
Extending the Handover-Iterative VQE to Challenging Strongly Correlated Systems: $N_2$ and Fe-S Cluster
Pilsun Yoo, Kyungmin Kim, Eyuel E. Elala +10 more·Jan 11, 2026
Accurately describing strongly correlated electronic systems remains a central challenge in quantum chemistry, as electron-electron interactions give rise to complex many-body wavefunctions that are difficult to capture with conventional approximatio...
Artificial Entanglement in the Fine-Tuning of Large Language Models
Min Chen, Zihan Wang, Canyu Chen +3 more·Jan 11, 2026
Large language models (LLMs) can be adapted to new tasks using parameter-efficient fine-tuning (PEFT) methods that modify only a small number of trainable parameters, often through low-rank updates. In this work, we adopt a quantum-information-inspir...
Experimental Coherent One-Way Quantum Key Distribution with Simplicity and Practical Security
Xiao-Yu Cao, Xiao-Ran Sun, Ming-Yang Li +3 more·Jan 11, 2026
Coherent one-way quantum key distribution (COW-QKD) has been widely investigated, and even been deployed in real-world quantum network. However, the proposal of the zero-error attack has critically undermined its security guarantees, and existing exp...
A paradigm for universal quantum information processing with integrated acousto-optic frequency beamsplitters
Joseph M. Lukens, John H. Dallyn, Hsuan-Hao Lu +5 more·Jan 11, 2026
Frequency-bin encoding offers tremendous potential in quantum photonic information processing, in which a single waveguide can support hundreds of lightpaths in a naturally phase-stable fashion. This stability, however, comes at a cost: arbitrary uni...
Chip-integrated metasurface-enabled single-photon skyrmion sources
Xujing Liu, Yinhui Kan, Shailesh Kumar +4 more·Jan 10, 2026
Skyrmions, topologically stable field configurations, have recently emerged in classical optics as structured light for high-density data applications. Achieving controllable on-chip generation of single-photon skyrmions, while being highly desirable...
Kara-Kichwa Data Sovereignty Framework: Reference Point for Indigenous Data Authority Renaissances in LAC
WariNkwi K. Flores, KunTikzi Flores, Rosa M. Panama +1 more·Jan 10, 2026
For Indigenous Peoples of the Apya Yala (or Abya Yala), particularly in the Kara and Kichwa citizens of the Pan-Andean-Amazonian biocultural region, data is not merely a knowledge or information resource, it is the extension of Khipu Panaka (Indigeno...
Transfer of Orbital Angular Momentum in Vortex Light through Four-Wave Mixing and the Manipulation of Slow and Fast Light
Fan Meng, Xin-Yao Huang, Guo-Feng Zhang·Jan 10, 2026
Vortex light, a unique optical field that carries orbital angular momentum (OAM), has attracted considerable attention in recent years. In this paper, we present a detailed theoretical analysis of OAM transfer from the input field to the generated si...
Even Odd Splitting of the Gaussian Quantum Fisher Information: From Symplectic Geometry to Metrology
Kaustav Chatterjee, Tanmoy Pandit, Varinder Singh +2 more·Jan 10, 2026
We introduce a canonical decomposition of the quantum Fisher information (QFI) for centered multimode Gaussian states into two additive pieces: an even part that captures changes in the symplectic spectrum and an odd part associated with correlation-...
Algorithms for Computing the Petz-Augustin Capacity
Chun-Neng Chu, Wei-Fu Tseng, Yen-Huan Li·Jan 10, 2026
We propose the first algorithms with non-asymptotic convergence guarantees for computing the Petz-Augustin capacity, which generalizes the channel capacity and characterizes the optimal error exponent in classical-quantum channel coding. This capacit...
Informationally Complete Distributed Metrology Without a Shared Reference Frame
Hua-Qing Xu, Gong-Chu Li, Xu-Song Hong +6 more·Jan 10, 2026
In quantum information processing, implementing arbitrary preparations and measurements on qubits necessitates precise information to identify a specific reference frame (RF). In space quantum communication and sensing, where a shared RF is absent, t...