Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Edge states of a Bi$_2$Se$_3$ nanosheet in a perpendicular magnetic field
Stan P. J. Koenis, Lucas Maisel Licerán, Henk T. C. Stoof·Dec 11, 2025
Conventional wisdom dictates that the conducting edge states of two-dimensional topological insulators of the Bi$_2$Se$_3$ family are protected by time-reversal symmetry. However, theoretical bulk calculations and a recent experiment show that the ed...
Metrics, KPIs, and Taxonomy for Data Valuation and Monetisation -- Internal Processes Perspective
Eduardo Vyhmeister, Bastien Pietropaoli, Alejando Martinez Molina +4 more·Dec 11, 2025
Data valuation and monetisation are emerging as central challenges in data-driven economies, yet no unified framework exists to measure or manage data value across organisational contexts. This paper presents a systematic literature review of metrics...
Topology-Guided Quantum GANs for Constrained Graph Generation
Tobias Rohe, Markus Baumann, Michael Poppel +3 more·Dec 11, 2025
Quantum computing (QC) promises theoretical advantages, benefiting computational problems that would not be efficiently classically simulatable. However, much of this theoretical speedup depends on the quantum circuit design solving the problem. We a...
Insensitivity points and performance of open quantum interferometers under number-conserving & non-conserving Lindblad dynamics
Tommaso Favalli, Žan Kokalj, Andrea Trombettoni·Dec 11, 2025
We investigate the phase sensitivity of a linear two-mode atom interferometer subject to environmental noise, modeled within the framework of open quantum systems with both number-conserving and non-conserving Lindblad operators. Considering several ...
Quantum-Amplified M/G/1/K Simulation: A Comparator-Controlled Framework for Arbitrary Service Distributions
Or Peretz, Michal Koren, Nir Perel·Dec 11, 2025
Finite-capacity single-server queues with general service-time distributions form the backbone of numerous real-world systems, yet classical simulation of performance metrics such as blocking probabilities and delay becomes computationally prohibitiv...
Sensitivity threshold defines the optimal spin subset for ensemble quantum sensing
Suwan I. Kang, Minhyeok Kim, Sanghyo Park +3 more·Dec 11, 2025
Finite drive power leaves unavoidable spatial gradients in control fields, preventing spin ensembles from reaching the standard-quantum-limit sensitivity. We derive an analytic expression of ensemble sensitivity for inhomogeneous spin sensors and int...
Hybrid Quantum Annealing Approach for High-Dimensional and Multi-Criteria Constrained Quadratic Optimization in Arctic Ship Routing
Tara Kit, Kimsay Pov, Myeongseong Go +5 more·Dec 11, 2025
The opening of Arctic sea routes presents unprecedented opportunities for global trade but poses significant operational and computational challenges due to the dynamic nature of sea ice conditions. This study formulates a multi criteria Arctic route...
Encoding parameters by measurement: Forgetting can be better in quantum metrology
Shuva Mondal, Priya Ghosh, Ujjwal Sen·Dec 11, 2025
We introduce quantum parameter estimation with the encoding being via a quantum measurement. We quantify the precision for estimating parameters characterizing a general two-outcome qubit measurement, considering two cases: when the outcomes of the e...
Rapid all-optical loading of trapped ions using a miniaturised atom source
Lorenzo Versini, Tim F. Wohlers-Reichel, Catherine E. J. Challoner +8 more·Dec 11, 2025
We characterise an efficient optically-heated neutral atom source for ion trapping. We observe loading rates of up to $24(3)\,\mathrm{s}^{-1}$ with heating powers below $85\,\mathrm{mW}$, and demonstrate loading of a single ion in under $30\,\mathrm{...
Tianyan: Cloud services with quantum advantage
Tianyan Quantum Group·Dec 11, 2025
Tianyan Quantum Cloud Platform offers cloud services demonstrating quantum advantage capabilities with a Zuchongzhi 3.0-like superconducting quantum processor. This cloud-accessible superconducting quantum prototype, named Tianyan-287, features 105 q...
The relativistic reason for quantum probability amplitudes
Karol Sajnok, Kacper Dębski, Andrzej Dragan·Dec 11, 2025
We show that the quantum-mechanical probability distribution involving complex probability amplitudes can be derived from three natural conditions imposed on a relativistically invariant probability function describing the motion of a particle that c...
Chaos, Entanglement and Measurement: Field-Theoretic Perspectives on Quantum Information Dynamics
Anastasiia Tiutiakina·Dec 11, 2025
This work develops tools to understand how quantum information spreads, scrambles, and is reshaped by measurements in many-body systems. First, I study scrambling and pseudorandomness in the Brownian Sachdev-Ye-Kitaev (SYK) model, quantifying pseudor...
On Simplest Kochen-Specker Sets
Mladen Pavicic·Dec 11, 2025
In Phys. Rev. Lett. 135, 190203 (2025) a discovery of the simplest 3D contextual set with 33 vertices, 50 bases, and 14 complete bases is claimed. In this paper, we show that it was previously generated in Quantum 7, 953 (2023) and analyze the meanin...
Optimal Distributed Similarity Estimation of Quantum Channels
Congcong Zheng, Kun Wang, Xutao Yu +2 more·Dec 11, 2025
We study distributed similarity estimation of quantum channels (DSEC), a primitive for cross-platform verification where two remote quantum devices are compared by estimating the inner product of their Choi states. We show that the optimal channel qu...
Shot and Architecture Adaptive Subspace Variational Quantum Eigensolver for Microwave Simulation
Zhixiu Han, Fanxu Meng, Weidong Li +2 more·Dec 11, 2025
Quantum computing offers a promising paradigm for electromagnetic eigenmode analysis, enabling compact representations of complex field interactions and potential exponential speedup over classical numerical solvers. Recent efforts have applied varia...
Robust population transfer by a detuning sign jump: from two-state quantum system to SU(2)-symmetric three-state quantum system
Peter Chernev, Andon A. Rangelov·Dec 11, 2025
We propose and analyze a robust population-transfer protocol in a driven two-level system based on a sudden sign change of the detuning at the maximum of a smooth coupling pulse. Away from the jump the dynamics is adiabatic, while the sign flip produ...
Design and Implementation of a High-Precision Wind-Estimation UAV with Onboard Sensors
Haowen Yu, Na Fan, Xing Liu +1 more·Dec 11, 2025
Accurate real-time wind vector estimation is essential for enhancing the safety, navigation accuracy, and energy efficiency of unmanned aerial vehicles (UAVs). Traditional approaches rely on external sensors or simplify vehicle dynamics, which limits...
Entanglement in C$^*$-algebras: tensor products of state spaces
Magdalena Musat, Mikael Rørdam·Dec 11, 2025
We analyze the Namioka-Phelps minimal and maximal tensor products of compact convex sets arising as state spaces of C$^*$-algebras, and, relatedly, study entanglement in (infinite dimensional) C$^*$-algebras. The minimal Namioka-Phelps tensor product...
Undecidability of the Unitary Hitting Time Problem: No Universal Time-Step Selector and an Operational No-Go for Finite-Time Decisions
Katsufumi Matsuura·Dec 11, 2025
We study the Unitary Hitting Time Problem (UHTP) in quantum dynamics. Given computably described pure states |a>, |b> and a time-dependent unitary U(t), define the hitting time as the infimum of t > 0 such that the fidelity between U(t)|a> and |b> re...
Ising on the donut: Regimes of topological quantum error correction from statistical mechanics
Lucas H. English, Sam Roberts, Stephen D. Bartlett +2 more·Dec 11, 2025
Utility-scale quantum computers require quantum error correcting codes with large numbers of physical qubits to achieve sufficiently low logical error rates. The performance of quantum error correction (QEC) is generally predicted through large-scale...