Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,088
This Month
1,488
Today
0
Research Volume
13,302 papers in 12 months (+5% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum simulation of strong charge-parity violation and Peccei-Quinn mechanism
Le Bin Ho·Dec 15, 2025
Quantum Chromodynamics (QCD) admits a topological $\barθ$ term that violates charge-parity ($CP$) symmetry, yet experiments indicate that $\barθ$ is extremely small. To investigate this problem in a controlled setting, we derive a Hamiltonian formula...
Measurement-Induced Perturbations of Hausdorff Dimension in Quantum Paths
You-Wei Ding, Yen Chin Ong, Hao Xu·Dec 15, 2025
In a seminal paper, Abbott et al. analyzed the relationship between a particle's trajectory and the resolution of position measurements performed by an observer at fixed time intervals. They predicted that quantum paths exhibit a universal Hausdorff ...
Imaginary-time-enhanced feedback-based quantum algorithms for universal ground-state preparation
Thanh Nguyen Van Long, Lan Nguyen Tran, Le Bin Ho·Dec 15, 2025
Preparing ground states of strongly correlated quantum systems is a central goal in quantum simulation and optimization. The feedback-based quantum algorithm (FALQON) provides an attractive alternative to variational methods with a fully quantum feed...
Universal Quantum Random Access Memory: A Data-Independent Unitary with a Commuting-Projector Hamiltonian
Leonardo Bohac·Dec 15, 2025
Quantum random access memory (QRAM) is a central primitive for coherent data access in quantum algorithms, yet it remains controversial in practice because the wall-clock cost of "one lookup" can hide routing depth, control overhead, and geometric co...
Quantum Coherence in Reflected and Refracted Beams: A Van Cittert-Zernike Approach
Yuetao Chen, Gaiqing Chen, Jin Wang +3 more·Dec 15, 2025
Recent advances in quantum optics have highlighted the critical role of spatial propagation in controlling the quantum coherence of light beams. However, the evolution of quantum coherence for light beams undergoing fundamental optical processes at d...
Actual and weak actual values in Bohmian mechanics
Weixiang Ye·Dec 15, 2025
We systematically analyze Holland's local expectation values within Bohmian mechanics, referring to them as weak actual values to emphasize their connection with weak measurement theory. These quantities are derived constructs that characterize local...
Intrinsic Geometry of Operational Contexts: A Riemannian-Style Framework for Quantum Channels
Kazuyuki Yoshida·Dec 15, 2025
We propose an intrinsic geometric framework on the space of operational contexts, specified by channels, stationary states, and self-preservation functionals. Each context C carries a pointer algebra, internal charges, and a self-consistent configura...
A Spatio-Temporal Hybrid Quantum-Classical Graph Convolutional Neural Network Approach for Urban Taxi Destination Prediction
Xiuying Zhang, Qinsheng Zhu, Xiaodong Xing·Dec 15, 2025
We propose a Hybrid Spatio-Temporal Quantum Graph Convolutional Network (H-STQGCN) algorithm by combining the strengths of quantum computing and classical deep learning to predict the taxi destination within urban road networks. Our algorithm consist...
Measures to characterise Approximate Mutually Unbiased Bases
Ajeet Kumar, Uditanshu Sadual·Dec 14, 2025
Mutually Unbiased bases has various application in quantum information procession and coding theory. There can be maximum d + 1 MUBs in C^d and d/2 +1 MUBs in R^d. But , over R^d MUBs are known to be non existent when d is odd and for most of the oth...
Boundary-driven quantum systems near the Zeno limit: steady states and long-time behavior
Eric A. Carlen, David A. Huse, Joel L. Lebowitz·Dec 14, 2025
We study composite open quantum systems with a finite-dimensional state space ${\mathcal H}_A\otimes {\mathcal H}_B$ governed by a Lindblad equation $ρ'(t) = {\mathcal L}_γρ(t)$ where ${\mathcal L}_γρ= -i[H,ρ] + γ{\mathcal D} ρ$, and ${\mathcal D}$ i...
Single-step Quantum Simulation of Two Nucleons
Bhoomika Maheshwari, Paul Stevenson, P. Van Isacker·Dec 14, 2025
Quantum computing offers a scalable approach to solving the nuclear shell model, a highly complex and exponentially scaled many-body problem. This work presents a numerical simulation of the subspace search variational quantum eigensolver (SSVQE) com...
The Quantum Fourier Transform for Continuous Variables
Gianfranco Cariolaro, Edi Ruffa, Amir Mohammad Yaghoobianzadeh +1 more·Dec 14, 2025
The quantum Fourier transform for discrete variable (dvQFT) is an efficient algorithm for several applications. It is usually considered for the processing of quantum bits (qubits) and its efficient implementation is obtained with two elementary comp...
Basis Adaptive Algorithm for Quantum Many-Body Systems on Quantum Computers
Anutosh Biswas, Sayan Ghosh, Ritajit Majumdar +2 more·Dec 14, 2025
A new basis adaptive algorithm for hybrid quantum-classical platforms is introduced to efficiently find the ground-state (gs) properties of quantum many-body systems. The method addresses limitations of many algorithms, such as Variational Quantum Ei...
Proximity effects and a topological invariant in a Chern insulator connected to leads
Satyam Sinha, Rekha Kumari, Junaid Majeed Bhat +2 more·Dec 14, 2025
The observed robustly quantized Hall conductance in quantum Hall systems and Chern insulators (CI) have so far been understood in terms of the topology of isolated systems, which are not coupled to leads. It is assumed that the leads act as inert res...
Nonlocal Cancellation of Optical Rotations in Fructose Solutions
Wen-Chia Lo, Chao-Yuan Wang, Yu-Tung Tsai +5 more·Dec 14, 2025
Entanglement, one of the most representative phenomena in quantum mechanics, has been widely used for fundamental studies and modern quantum technologies. In this paper, we report the observation of nonlocal cancellation and addition of optical rotat...
Practical Hybrid Quantum Language Models with Observable Readout on Real Hardware
Stefan Balauca, Ada-Astrid Balauca, Adrian Iftene·Dec 14, 2025
Hybrid quantum-classical models represent a crucial step toward leveraging near-term quantum devices for sequential data processing. We present Quantum Recurrent Neural Networks (QRNNs) and Quantum Convolutional Neural Networks (QCNNs) as hybrid quan...
Entanglement, Coherence, and Recursive Linking in Dicke states : A Topological Perspective
Sougata Bhattacharyya, Sovik Roy·Dec 14, 2025
This work investigates the topological structure of multipartite entanglement in symmetric Dicke states $|D_n^{(k)}\rangle$. By viewing qubits as topological loops, we establish a direct correspondence between the recursive measurement dynamics of Di...
Electrically Tuneable Variability in Germanium Hole Spin Qubits
Edmondo Valvo, Michele Jakob, Patrick Del Vecchio +2 more·Dec 14, 2025
Hole spin qubits in planar germanium heterostructures are frontrunners for scalable semiconductor quantum computing. However, their current performance is mostly limited by large dot-to-dot variability that leads to uncontrolled qubit energies and ra...
Probing the Crossover between Dynamical Phases with Local Correlations in a Rydberg Atom Array
Xiaofeng Wu, Xin Wang, Sixun Jia +1 more·Dec 14, 2025
The experimental detection of non-equilibrium quantum criticality remains a challenge, as traditional signatures like dynamical quantum phase transitions rely on hard-to-measure global properties. Here, we demonstrate that local connected correlation...
FiD-QAE: A Fidelity-Driven Quantum Autoencoder for Credit Card Fraud Detection
Mansour El Alami, Adam Innan, Nouhaila Innan +2 more·Dec 14, 2025
Credit card fraud detection is a critical task in financial security, as fraudulent transactions are rare, highly imbalanced, and often resemble legitimate ones. A wide range of classical machine learning methods, as well as more recent quantum machi...