Papers
Live trends in quantum computing research, updated daily from arXiv.
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12,445 papers in 12 months (-19% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Error-mitigated quantum state tomography using neural networks
Yixuan Hu, Mengru Ma, Jiangwei Shang·Feb 10, 2026
The reliable characterization of quantum states is a fundamental task in quantum information science. For this purpose, quantum state tomography provides a standard framework for reconstructing quantum states from measurement data, yet it is often de...
Sample- and Hardware-Efficient Fidelity Estimation by Stripping Phase-Dominated Magic
Guedong Park, Jaekwon Chang, Yosep Kim +2 more·Feb 10, 2026
Direct fidelity estimation (DFE) is a famous tool for estimating the fidelity with a target pure state. However, such a method generally requires exponentially many sampling copies due to the large magic of the target state. This work proposes a samp...
Device-independent quantum key distribution over 100 km with single atoms
Bo-Wei Lu, Chao-Wei Yang, Run-Qi Wang +15 more·Feb 10, 2026
Device-independent quantum key distribution (DI-QKD) is a key application of the quantum internet. We report the realization of DI-QKD between two single-atom nodes linked by 100-km fibers. To improve the entangling rate, single-photon interference i...
Field-Dependent Qubit Flux Noise Simulated from Materials-Specific Disordered Exchange Interactions Between Paramagnetic Adsorbates
Keith G. Ray, Yaniv Rosen, Jonathan L Dubois +1 more·Feb 10, 2026
Superconducting quantum devices, from qubits and magnetometers to dark matter detectors, are influenced by magnetic flux noise originating from paramagnetic surface defects and impurities. These spin systems can feature complex dynamics, including a ...
Resources of the advantage in quantum Illumination: Discord and entanglement
Mojtaba Asadollahi, Mohammad Hossein Zarei·Feb 10, 2026
We investigate the quantum advantage in quantum illumination using two-qubit mixed states as the initial resource. We show that in quantum illumination, the achievable advantage is determined by an interplay between initial entanglement and discord. ...
Quantum Multiple Rotation Averaging
Shuteng Wang, N. Meli, Michael Möller +1 more·Feb 10, 2026
Multiple rotation averaging (MRA) is a fundamental optimization problem in 3D vision and robotics that aims to recover globally consistent absolute rotations from noisy relative measurements. Established classical methods, such as L1-IRLS and Shonan,...
Coherence Protection for Mobile Spin Qubits in Silicon
Jan A. Krzywda, Yuta Matsumoto, Maxim De Smet +6 more·Feb 9, 2026
Mobile spin qubit architectures promise flexible connectivity for efficient quantum error correction and relaxed device layout constraints, but their viability rests on preserving spin coherence during transport. While shuttling transforms spatial di...
Quantum Phaselift
Dhrumil Patel, Laura Clinton, Steven T. Flammia +1 more·Feb 9, 2026
Estimating quantum time-series such as the Loschmidt amplitude $f(t)=\langleψ|\mathrm{e}^{-\mathrm{i}Ht}|ψ\rangle$ is central to spectroscopy, Hamiltonian analysis, and many phase-estimation algorithms. Direct estimation via the Hadamard test require...
Constant-space-overhead fault-tolerant quantum input/output and communication
Paula Belzig, Hayata Yamasaki·Feb 9, 2026
Fault-tolerant capacities quantify the ability of a quantum channel to reliably transmit information when every component of the encoding and decoding procedure is noisy. Earlier work analyzed achievable communication rates under such noise using fau...
GHz-rate polarization-based QKD system for fiber and satellite applications
Matías Rubén Bolaños, Edoardo Rossi, Federico Berra +9 more·Feb 9, 2026
Quantum key distribution (QKD) leverages the principles of quantum mechanics to exchange a secret key between two parties. Despite its promising features, QKD also faces several practical challenges such as transmission loss, noise in quantum channel...
Differentiable Logical Programming for Quantum Circuit Discovery and Optimization
Antonin Sulc·Feb 9, 2026
Designing high-fidelity quantum circuits remains challenging, and current paradigms often depend on heuristic, fixed-ansatz structures or rule-based compilers that can be suboptimal or lack generality. We introduce a neuro-symbolic framework that ref...
Intelligent Control of Collisional Architectures for Deterministic Multipartite State Engineering
Duc-Kha Vu, Minh Tam Nguyen, Özgür E. Müstecaplıoğlu +1 more·Feb 9, 2026
Designing scalable, noise-tolerant control protocols for multipartite entanglement is a central challenge for quantum technologies, and it naturally calls for \emph{algorithmic} synthesis of interaction parameters rather than handcrafted gate sequenc...
Non-Markovianity induced by Pauli-twirling
Joris Kattemölle, Balázs Gulácsi, Guido Burkard·Feb 9, 2026
Noise forms a central obstacle to effective quantum information processing. Recent experimental advances have enabled the tailoring of noise properties through Pauli twirling, transforming arbitrary noise channels into Pauli channels. This underpins ...
Quantum Detection of Sequency-Band Structure
Alok Shukla, Prakash Vedula·Feb 9, 2026
We present a quantum algorithm for estimating the amplitude content of user-specified sequency bands in quantum-encoded signals. The method employs a sequency-ordered Quantum Walsh-Hadamard Transform (QWHT), a comparator-based oracle that coherently ...
Quantization-aware Photonic Homodyne computing for Accelerated Artificial Intelligence and Scientific Simulation
Lian Zhou, Kaiwen Xue, Amirhossein Fallah +14 more·Feb 9, 2026
Modern problems in high-performance computing, ranging from training and inferencing deep learning models in computer vision and language models to simulating complex physical systems with nonlinearly-coupled equations, require exponential growth of ...
Detecting multilevel entanglement from light-based entanglement witnesses
Pedro Rosario, Romain Bachelard·Feb 9, 2026
We introduce a set of electric-field based inequalities capable of detecting multilevel entanglement from a system of N quantum emitters. We determine that the polarization channel as well as the direction of detection can enhance entanglement detect...
Semi-device-independent certification of high-dimensional quantum channels
Mengyan Li, Yanning Jia, Fenzhuo Guo +3 more·Feb 8, 2026
Certifying high-dimensional quantum channels is essential for ensuring the reliability of quantum communication protocols. Existing certification schemes often rely on fully trusted internal devices, which is difficult to achieve in realistic scenari...
A Course on the Introduction to Quantum Software Engineering: Experience Report
Andriy Miranskyy·Feb 7, 2026
Quantum computing is increasingly practiced through programming, yet most educational offerings emphasize algorithmic or framework-level use rather than software engineering concerns such as testing, abstraction, tooling, and lifecycle management. Th...
Characterization of Autofluorescence in Optical Fibers for NV-based Sensing Applications
Stefan Johansson, Alexander Bukschat, Dennis Lönard +3 more·Feb 7, 2026
Optical fibers are crucial for guiding light in various sensing applications. Especially for quantum sensors such as the nitrogen-vacancy (NV) center in diamond, they enable light control and device miniaturization. However, fluorescence and scatteri...
Systematic Characterization of Transmon Qubit Stability with Thermal Cycling
Cong Li, Zhaohua Yang, Xinfang Zhang +3 more·Feb 7, 2026
The temporal stability and reproducibility of qubit parameters are critical for the long-term operation and maintenance of superconducting quantum processors. In this work, we present a comprehensive longitudinal characterization of 27 frequency-tuna...