Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Efficient integrated quantum memory for light
Ruo-Ran Meng, Pei-Xi Liu, Xiao Liu +10 more·Nov 8, 2025
Scalable implementation of quantum networks and photonic processors require integrated photonic memories with high efficiency, yet current integrated systems have been limited to storage efficiencies below 27.8%. Here, we demonstrate highly efficient...
Tractable Infinite-Horizon Stochastic Model Predictive Control for Quantum Filtering via Eigenstate Reduction
Yunyan Lee, Ian R. Petersen, Daoyi Dong·Nov 8, 2025
Model predictive control has shown potential to enhance the robustness of quantum control systems. In this work, we propose a tractable Stochastic Model Predictive Control (SMPC) framework for finite-dimensional quantum systems under continuous-time ...
Towards Personalized Quantum Federated Learning for Anomaly Detection
Ratun Rahman, Sina Shaham, Dinh C. Nguyen·Nov 8, 2025
Anomaly detection has a significant impact on applications such as video surveillance, medical diagnostics, and industrial monitoring, where anomalies frequently depend on context and anomaly-labeled data are limited. Quantum federated learning (QFL)...
Optimizing the charging of quantum batteries via shortcuts to adiabaticity
Sh. Ebrahimi, S. Salimi, F. T. Tabesh +1 more·Nov 8, 2025
Although implementing shortcuts to adiabaticity (STA) in open quantum systems remains challenging due to the complex control schemes required for such systems, their powerful ability to rapidly steer the system toward target states and their widespre...
Self-induced manipulation of biphoton entanglement in topologically distinct modes
Wei-Wei Zhang, Chao Chen, Jizhou Wu·Nov 8, 2025
Biphoton states have shown promising applications in quantum information processing, including quantum communications, quantum metrology, and quantum imaging. The generation and manipulation of biphoton entanglement in topologically distinct modes pa...
Contrasting GHZ and W-state Entanglement Dynamics due to Correlated Markov Noise
Stephen Brockerhoff, Brittany Corn-Agostini·Nov 8, 2025
The ability to preserve multipartite entanglement in noisy environments is central to advancing quantum information processing. In this work, we develop a semiclassical theoretical model of three entangled qubits exposed to local Markov noise environ...
Quantum Nanophotonic Interface for Tin-Vacancy Centers in Thin-Film Diamond
Hope Lee, Hannah C. Kleidermacher, Abigail J. M. Stein +10 more·Nov 7, 2025
The negatively charged tin-vacancy center in diamond (SnV$^-$) is an excellent solid state qubit with optically-addressable transitions and a long electron spin coherence time at elevated ($\sim1.7$ K). However, implementing scalable quantum nodes wi...
Color code thresholds under circuit-level noise beyond the Pauli framework
Francesco Pio Barone, Daniel Jaschke, Ilaria Siloi +1 more·Nov 7, 2025
A quantum error correction code is assessed over its ability to correct errors in noisy quantum circuits. This task requires extensive simulations of faulty quantum circuits, which are often made tractable by considering stochastic Pauli noise models...
Adiabatic state preparation from general initial states
Bryce Fuller, Mario Motta, Stuart M. Harwood +4 more·Nov 7, 2025
A variety of quantum computing algorithms exist for the preparation of approximate Hamiltonian ground states. A natural and important question is how these ground-state approximations can be further improved using adiabatic state preparation. Here, w...
Semi-device-independent randomness certification on discretized continuous-variable platforms
Moisés Alves, Vitor L. Sena, Santiago Zamora +4 more·Nov 7, 2025
Randomness is fundamental for secure communication and information processing. While continuous-variable optical systems offer an attractive platform for this task, certifying genuine quantum randomness in such setups remains challenging. We present ...
Memory effects in repeated uses of quantum channels
Hayden Zammit, Roberto Salazar, Gianluca Valentino +2 more·Nov 7, 2025
Quantum Information Processing (QIP) tasks can be efficiently formulated in terms of quantum dynamical maps, whose formalism is able to provide the appropriate mathematical representation of the evolution of open quantum systems. A key QIP task is qu...
Controlled generation of 3D vortices in driven atomic Josephson junctions
Vijay Pal Singh, Ludwig Mathey, Herwig Ott +1 more·Nov 7, 2025
We propose an ac-driven atomic Josephson junction as a clean and tunable source of three dimensional (3D) solitary waves in quantum fluids. Depending on the height of the junction barrier, the emitted excitations appear as vortex rings at low velocit...
Quantum Data Representation via Circuit Partitioning and Reintegration
Ziqing Guo, Jan Balewski, Kewen Xiao +1 more·Nov 7, 2025
Quantum data encoding (QDE) enables faster com-putations than classical algorithms through superposition and en-tanglement. Circuit cutting and knitting are effective techniques for ameliorating current noisy quantum processing unit (QPUs) errors via...
Exact strong zero modes in quantum circuits and spin chains with non-diagonal boundary conditions
Sascha Gehrmann, Fabian H. L. Essler·Nov 7, 2025
We construct exact strong zero mode operators (ESZM) in integrable quantum circuits and the spin-1/2 XXZ chain for general open boundary conditions, which break the bulk U(1) symmetry of the time evolution operators. We show that the ESZM is localize...
Further improvements to stabilizer simulation theory: classical rewriting of CSS-preserving stabilizer circuits, quadratic form expansions of stabilizer operations, and framed hidden variable models
Vsevolod I. Yashin, Vladimir V. Yatsulevich, Aleksey K. Fedorov +1 more·Nov 7, 2025
Simulation of stabilizer circuits is a well-studied problem in quantum information processing, with a number of highly optimized algorithms available. Yet, we argue that further improvements can arise from the theoretical structure of stabilizer oper...
Helios: A 98-qubit trapped-ion quantum computer
Anthony Ransford, M. S. Allman, Jake Arkinstall +183 more·Nov 7, 2025
We report on Quantinuum Helios, a 98-qubit trapped-ion quantum processor based on the quantum charge-coupled device (QCCD) architecture. Helios features $^{137}$Ba$^{+}$ hyperfine qubits, all-to-all connectivity enabled by a rotatable ion storage rin...
Trade-off between complexity and energy in quantum phase estimation
Yukuan Tao, Madalin Guta, Gerardo Adesso·Nov 7, 2025
Quantifying the energetic cost of implementing quantum operations is essential for assessing the efficiency and scalability of quantum sensing and information-processing technologies. Here, we introduce a framework for analysing the interplay between...
Realization of Thread Level Parallelism on Quantum Devices
Keren Li, Zidong Lin, Zheng An +4 more·Nov 7, 2025
Scaling up quantum devices is a central challenge for realizing practical quantum computation. Modular quantum architectures promise scalability, yet experiments to date have relied on either $\sim\!10^{3}$-qubit monolithic chips or fragile interconn...
Quantum advantage from effective $200$-qubit holographic random circuit sampling
Bingzhi Zhang, Quntao Zhuang·Nov 7, 2025
Quantum computers hold the promise of outperforming classical computers in solving certain problems. While large-scale quantum algorithms will require fault-tolerant devices, near-term demonstrations of quantum advantage on existing devices can provi...
Sagnac Tractor Atom Interferometer on Photonic Integrated Circuit
Lefeng Zhou, Anne Graf, Georg Raithel·Nov 7, 2025
We study the theory of, and propose an experimental design for, a Sagnac tractor atom interferometer based on a photonic integrated circuit (PIC). The atoms are trapped in counter-rotating azimuthal optical lattices, formed by interfering evanescent ...