Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Rapid Preparation of Rydberg Superatom W State Using Superadiabatic Techniques
Liping Yang, Jiping Wang, Li Dong +2 more·Sep 21, 2025
The W state, as a robust multipartite entangled state, plays an important role in quantum information processing, quantum network construction and quantum computing. In this paper, we encode quantum information on the effective energy levels of Rydbe...
Constructing an approximate logical Markovian model of consecutive QEC cycles of a stabilizer code
Alex Kwiatkowski, Aaron J. Friedman, Shawn Geller +3 more·Sep 21, 2025
As quantum error correction (QEC) experiments continue to make rapid progress, there is increased interest in designing experiments with guarantees of logical performance. At present, one difficulty is the lack of a clear connection between logical p...
Quantum State Tomography for Tensor Networks in Two Dimensions
Zhen Qin, Zhihui Zhu·Sep 21, 2025
Recent work has shown that for one-dimensional quantum states that can be effectively approximated by matrix product operators (MPOs), a polynomial number of copies of the state suffices for reconstruction. Compared to MPOs in one dimension, projecte...
Quantum Fokker-Planck Master Equation with general signal filtering
Guilherme de Sousa·Sep 20, 2025
In this paper, we derive a general master equation for continuous feedback based on arbitrary linear signals. This result is an extension of the Quantum Fokker-Planck Master Equation derived by Annby-Andersson et al (Phys. Rev. Lett. 129, 050401) to ...
Inverse-Designed Photonic Crystal Cavities with Controllable Far-Field Numerical Aperture
Neelesh Kumar Vij, Purbita Purkayastha, Jasvith Raj Basani +1 more·Sep 20, 2025
Photonic crystal cavities confine light to subwavelength volumes, enabling strong light-matter interactions for applications in low-power photonics, opto-electronics, nonlinear optics, and quantum information. These applications demand cavities that ...
SICs, the Stabilizer Polytope and Majorization
Blake C. Stacey·Sep 20, 2025
The theory of majorization provides a unifying account of several ways in which Symmetric Informationally Complete POVMs are extremal entities.
A Comprehensive Protocol Stack for Quantum Networks with a Global Entanglement Module
Xiaojie Fan, C. R. Ramakrishnan, Himanshu Gupta·Sep 20, 2025
The development of large-scale quantum networks requires not only advances in physical-layer technologies but also a comprehensive protocol stack that integrates communication, control, and resource management across all layers. We present the first ...
Sublinear Time Quantum Sensitivity Sampling
Zhao Song, David P. Woodruff, Lichen Zhang·Sep 20, 2025
We present a unified framework for quantum sensitivity sampling, extending the advantages of quantum computing to a broad class of classical approximation problems. Our unified framework provides a streamlined approach for constructing coresets and o...
A Study on Stabilizer Rényi Entropy Estimation using Machine Learning
Vincenzo Lipardi, Domenica Dibenedetto, Georgios Stamoulis +1 more·Sep 20, 2025
Nonstabilizerness is a fundamental resource for quantum advantage, as it quantifies the extent to which a quantum state diverges from those states that can be efficiently simulated on a classical computer, the stabilizer states. The stabilizer Rényi ...
Quantum Printing
Gabriel Aeppli, Alexander V. Balatsky, Stefano Bonetti +8 more·Sep 20, 2025
We introduce the concept of quantum printing -- the imprinting of quantum states from photons and phonons onto quantum matter. The discussion is focusing on charged fluids (metals, superconductors, Hall fluids) and neutral systems (magnets, excitons)...
On the Ballistic Transport for limit-periodic Jacobi Matrices
Rui Han, Moises Gomez Solis·Sep 20, 2025
Motivated by Open Problem 17 in Damanik-Fillman's manuscript , we study the decay rate of limit-periodic approximation such that ballistic transport persists in the limit-periodic setting. We show an exponential decay rate, roughly $\|\mathscr{J}-\ma...
Explicit Quantum Circuits for Simulating Linear Differential Equations via Dilation
Seonggeun Park·Sep 20, 2025
Quantum simulation has primarily focused on unitary dynamics, while many physical and engineering systems can be modeled by linear ordinary differential equations whose generators include non-Hermitian terms. Recent studies have shown that such equat...
pyRMG: A Framework for High-Throughput, Large-Cell DFT Calculations on Supercomputers
R. J. Morelock, S. Bagchi, E. L. Briggs +3 more·Sep 20, 2025
Exascale computing delivers the raw power to simulate ever larger and more chemically realistic systems, but realizing this potential requires codes that can efficiently use thousands of processors. Our real-space multigrid (RMG) density functional t...
Error stabilized logical qubits in qudit generalizations of the monitored Kitaev model
Aayush Vijayvargia, Ezra Day-Roberts, Onur Erten·Sep 20, 2025
Monitored dynamics in quantum circuits provide tunable platforms for the realization of novel non-equilibrium phases. Motivated by recent advances in monitored Kitaev circuits, we investigate the monitored dynamics of the qudit ($d=4$) generalization...
Variational processing of multimode squeezed light
Aviv Karnieli, Paul-Alexis Mor, Charles Roques-Carmes +5 more·Sep 20, 2025
Integrated multimode quantum optics is a promising platform for scalable continuous-variable quantum technologies leveraging multimode squeezing in both the spatial and spectral domains. However, on-chip measurement, routing and processing the releva...
A Collisional Model Approach to Quantum Phase Sensitivity
S. Elham Mousavigharalari, Deniz Türkpençe·Sep 20, 2025
We investigate how relative phase information, encoded by a single qubit $H\,\varphi\,H$ gate sequence, is reflected in the quantum Fisher information (QFI) under noisy dynamics. Within a collision model framework, algorithmically prepared reservoir ...
Navigating entanglement via Ruderman-Kittel-Kasuya-Yosida exchange: Snake, bouncing, boundary-residing, pulse, and damping-stabilized time-frozen trajectories
Son-Hsien Chen, Seng Ghee Tan, Ching-Ray Chang·Sep 20, 2025
Entanglement dynamics are fundamental to quantum technologies, yet navigating their temporal profiles (trajectories) remains challenging. Here, we propose a scalable solid-state platform based on RKKY exchange, where two spin qubits couple to a centr...
$Δ_T$ Noise as a Robust Diagnostic for Chiral, Helical and Trivial Edge Modes
Sachiraj Mishra, Colin Benjamin·Sep 20, 2025
In this article we demonstrate that $Δ_T$ noise provides a sensitive, practical probe for distinguishing chiral edge modes from topological helical and trivial (non-topological) helical edge transport. Measured under zero-current conditions, $Δ_T$ no...
Joint momenta-coordinates states as pointer states in quantum decoherence
Nomenjanahary Tanjonirina Manampisoa, Ravo Tokiniaina Ranaivoson, Roland Raboanary +3 more·Sep 20, 2025
Quantum decoherence provides a framework to study the emergence of classicality from quantum systems by showing how interactions with the environment suppress interferences and select robust states known as pointer states. Earlier studies have linked...
Structure-Fair Quantum Circuit Complexity: An Auditable Information-Theoretic Lower Bound
HongZheng Liu, YiNuo Tian, Zhiyue Wu·Sep 20, 2025
Quantifying the complexity of quantum states that possess intrinsic structure, such as symmetry or encoding, in a fair manner constitutes a core challenge in the benchmarking of quantum technologies. This paper introduces the Reference-Contingent Com...