Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,396 papers in 12 months (-22% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Cultivating T states on the surface code with only two-qubit gates
Jahan Claes·Sep 5, 2025
High-fidelity T magic states are a key requirement for fault-tolerant quantum computing in 2D. It has generally been assumed that preparing high-fidelity T states requires noisy injection of T states followed by lengthy distillation routines. This as...
Practical Fidelity Limits of Toffoli Gates in Superconducting Quantum Processors
M. AbuGhanem·Sep 5, 2025
High-fidelity multi-qubit gates are a critical resource for near-term quantum computing, as they underpin the execution of both quantum algorithms and fault-tolerant protocols. The Toffoli gate (CCNOT), in particular, plays a central role in quantum ...
Histogram-Driven Amplitude Embedding for Qubit-Efficient Quantum Image Compression
Sahil Tomar, Sandeep Kumar·Sep 5, 2025
This work introduces a compact and hardwareefficient method for compressing color images using near-term quantum devices. The approach segments the image into fixedsize blocks (“bixels”), and computes the total intensity within each block. A global h...
Qumode-Based Variational Quantum Eigensolver for Molecular Excited States.
Rishab Dutta, Cameron Cianci, A. Soudackov +5 more·Sep 5, 2025
We introduce the qumode subspace variational quantum eigensolver (QSS-VQE), a hybrid quantum-classical algorithm for computing molecular excited states using the Fock basis of bosonic qumodes in circuit quantum electrodynamics (cQED) devices. This ap...
Unbounded-input explicit Bell inequalities for general quantum networks
Yao Xiao, Fenzhuo Guo, Haifeng Dong +1 more·Sep 5, 2025
Quantum nonlocality in networks featuring multiple independent sources underpins large-scale quantum communication and poses fundamental challenges for its characterization. In this work, we construct a family of explicit nonlinear Bell inequalities ...
Transmon-assisted high-fidelity controlled- Z gates for integer fluxonium qubits
J.-H. Wang, H. Xiong, J.-Z. Yang +3 more·Sep 5, 2025
Fluxoniums, as partially-protected superconducting qubits are promising to be employed to build high-performance large-scale quantum processor. The recently proposed ``integer fluxonium"operates at zero external flux bias, with a frequency of approxi...
Simulated Laser Cooling and Magneto-Optical Trapping of Group IV Atoms
Geoffrey Zheng, Jianwei Wang, Mohit Verma +3 more·Sep 4, 2025
We present a scheme for laser cooling and magneto-optical trapping of the Group IV (a.k.a. Group 14 or tetrel) atoms silicon (Si), germanium (Ge), tin (Sn), and lead (Pb). These elements each possess a strong Type-II transition ($J \rightarrow J' = J...
$^{171}$Yb Reference Data
Ronen M. Kroeze, Sofus Laguna Kristensen, Sebastian Pucher·Sep 4, 2025
Ytterbium-171 is a versatile atomic species often used in quantum optics, precision metrology, and quantum computing. Consolidated atomic data is essential for the planning, execution, and evaluation of experiments. In this reference, we present phys...
Complexity of Quadratic Quantum Chaos
Pallab Basu, Suman Das, Pratik Nandy·Sep 4, 2025
We investigate minimal two-body Hamiltonians with random interactions that generate spectra resembling those of Gaussian random matrices, a phenomenon we term quadratic quantum chaos. Unlike integrable two-body fermionic systems, the corresponding ha...
Quantum-inspired dynamical models on quantum and classical annealers
Philipp Hanussek, Jakub Pawłowski, Zakaria Mzaouali +1 more·Sep 4, 2025
We propose a practical, physics-inspired benchmarking suite to challenge both quantum and classical computers by mapping real-time quantum dynamics to a common optimization format. Using a parallel-in-time encoding, we convert the real-time propagato...
Monte Carlo simulation of random circuit sampling in quantum computing
A. Raab·Sep 4, 2025
We develop Monte Carlo methods for sampling random states and corresponding bit strings in qubit systems. To this end, we derive exact probability density functions that yield the Porter-Thomas distribution in the limit of large systems. We apply the...
Wavefront correction of high-dimensional two-photon states via coherence-entanglement transfer
Shaurya Aarav, Hugo Defienne·Sep 4, 2025
Reliable transmission of quantum optical states through real-world environments is key for quantum communication and imaging. Yet, aberrations and scattering in the propagation path can scramble the transmitted signal and hinder its use. A typical st...
Forecasting Low-Dimensional Turbulence via Multi-Dimensional Hybrid Quantum Reservoir Computing
L. Salatino, L. Mariani, A. Giordano +9 more·Sep 4, 2025
The prediction of complex dynamics remains an open problem across many domains of physics, where nonlinearities and multiscale interactions severely limit the reliability of conventional forecasting methods. Quantum reservoir computing (QRC) has emer...
A Framework for Quantum Data Center Emulation Using Digital Quantum Computers
Seyed Navid Elyasi, Seyed Morteza Ahmadian, Paolo Monti +2 more·Sep 4, 2025
As quantum computing hardware advances, the limitations of single-chip architectures, particularly in terms of small qubit count, have sparked growing interest in modular quantum computing systems and Quantum Data Centers (QDCs). These architectures ...
LATTE: A Decoding Architecture for Quantum Computing with Temporal and Spatial Scalability
Kai Zhang, Jubo Xu, Fang Zhang +3 more·Sep 4, 2025
Quantum error correction allows inherently noisy quantum devices to emulate an ideal quantum computer with reasonable resource overhead. As a crucial component, decoding architectures have received significant attention recently. In this paper, we in...
Learning Neural Decoding with Parallelism and Self-Coordination for Quantum Error Correction
Kai Zhang, Situ Wang, Linghang Kong +3 more·Sep 4, 2025
Fast, reliable decoders are pivotal components for enabling fault-tolerant quantum computation. Neural network decoders like AlphaQubit have demonstrated significant potential, achieving higher accuracy than traditional human-designed decoding algori...
Real-time adaptive quantum error correction by model-free multi-agent learning
Manuel Guatto, Francesco Preti, Michael Schilling +3 more·Sep 4, 2025
Can we build efficient Quantum Error Correction (QEC) that adapts on the fly to time-varying noise? In this work we say yes, and show how. We present a two level framework based on Reinforcement Learning (RL) that learns to correct even non-stationar...
Qubit-optimal quantum phase estimation of block-encoded Hamiltonians
S. Skelton·Sep 4, 2025
Block-encodings have become one of the most common oracle assumptions in the circuit model. I present an algorithm that uses von Neumann's measurement procedure to measure a phase, using time evolution on a block-encoded Hamiltonian as a subroutine. ...
Quantum AI Algorithm Development for Enhanced Cybersecurity: A Hybrid Approach to Malware Detection
Tanya Joshi, Krishnendu Guha·Sep 4, 2025
This study explores the application of quantum machine learning (QML) algorithms to enhance cybersecurity threat detection, particularly in the classification of malware and intrusion detection within high-dimensional datasets. Classical machine lear...
Reconfigurable Four-Photon Interference among Three Nodes on a Field Deployed Metropolitan Fiber Network
Kazi Reaz, Md Mehdi Hassan, Jacob E. Humberd +7 more·Sep 3, 2025
Advanced quantum networking protocols beyond bi-photon, point-to-point links rely critically on the ability to perform multi-photon interference across multiple nodes under realistic operating conditions. Yet experimental validation of such higher-or...