Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum generative modeling for financial time series with temporal correlations
David Dechant, Eliot Schwander, Lucas van Drooge +4 more·Jul 29, 2025
Quantum generative adversarial networks (QGANs) have been investigated as a method for generating synthetic data with the goal of augmenting training data sets for neural networks. This is especially relevant for financial time series, since we only ...
Quantum-Informed Machine Learning for Predicting Spatiotemporal Chaos with Practical Quantum Advantage
Maida Wang, Xiao Xue, Mingyang Gao +1 more·Jul 26, 2025
We introduce a quantum-informed machine learning (QIML) framework for modelling the long-term behaviour of high-dimensional chaotic systems. QIML combines a one-time, offline-trained quantum generative model with a classical autoregressive predictor ...
Towards System-Level Quantum-Accelerator Integration
Ralf Ramsauer, Wolfgang Mauerer·Jul 25, 2025
Quantum computers are often treated as experimental add-ons that are loosely coupled to classical infrastructure through high-level interpreted languages and cloud-like orchestration. However, future deployments in both, high-performance computing (H...
Shallow-depth GHZ state generation on NISQ devices
S. S. Chelluri, S. Schuster, Sumeet +1 more·Jul 25, 2025
In this work, we focus on GHZ state generation under the practical constraint of limited qubit connectivity, a hallmark of current NISQ hardware. We study the GHZ state preparation across different connectivity graphs inspired by IBM and Google chip ...
Almost fault-tolerant quantum machine learning with drastic overhead reduction
Haiyue Kang, Younghun Kim, Eromanga Adermann +2 more·Jul 25, 2025
Errors in the current generation of quantum processors pose a significant challenge towards practical-scale implementations of quantum machine learning (QML) as they lead to trainability issues arising from noise-induced barren plateaus, as well as p...
Secure One-Sided Device-Independent Quantum Key Distribution Under Collective Attacks with Enhanced Robustness
Pritam Roy, Subhankar Bera, A. S. Majumdar·Jul 24, 2025
We study the security of a quantum key distribution (QKD) protocol under the one-sided device-independent (1sDI) setting, which assumes trust in only one party's measurement device. This approach effectively provides a balance between the experimenta...
NIST Post-Quantum Cryptography Standard Algorithms Based on Quantum Random Number Generators
Abel C. H. Chen·Jul 24, 2025
In recent years, the advancement of quantum computing technology has posed potential security threats to RSA cryptography and elliptic curve cryptography. In response, the National Institute of Standards and Technology (NIST) published several Federa...
Quantum walks reveal topological flat bands, robust edge states and topological phase transitions in cyclic graphs
Dinesh Kumar Panda, Colin Benjamin·Jul 23, 2025
Topological phases, edge states, and flat bands in synthetic quantum systems are a key resource for topological quantum computing and noise-resilient information processing. We introduce a scheme based on step-dependent quantum walks on cyclic graphs...
Practical blueprint for low-depth photonic quantum computing with quantum dots
M. L. Chan, Aliki Anna Capatos, P. Lodahl +2 more·Jul 22, 2025
Fusion-based quantum computing is an attractive model for fault-tolerant computation based on photonics requiring only finite-sized entangled resource states followed by linear-optics operations and photon measurements. Large-scale implementations ha...
Reconfigurable qubit states and quantum trajectories in a synthetic artificial neuron network with a process to direct information generation from co-integrated burst-mode spiking under non-Markovianity
Osama M. Nayfeh, C. Horne·Jul 22, 2025
The research and development of hardware neuron technologies are accelerating at a very fast pace to provide for increased efficiency in performing artificial intelligence and autonomy functions beyond that possible with emulation on digital computer...
Computational Performance Bounds Prediction in Quantum Computing With Unstable Noise
Jinyang Li, Samudra Dasgupta, Yuhong Song +3 more·Jul 22, 2025
Quantum computing has significantly advanced in recent years, boasting devices with hundreds of quantum bits (qubits), hinting at its potential quantum advantage over classical computing. Yet, noise in quantum devices poses significant barriers to re...
Meta-learning of Gibbs states for many-body Hamiltonians with applications to Quantum Boltzmann Machines
R. V. Bhat, Rahul Bhowmick, Avinash Singh +1 more·Jul 22, 2025
The preparation of quantum Gibbs states is a fundamental challenge in quantum computing, essential for applications ranging from modeling open quantum systems to quantum machine learning. Building on the Meta-Variational Quantum Eigensolver framework...
Efficiently Generation of Cluster States via Time-Delayed Feedback in Matrix Representation
Jia-Jin Zou, Jianyuan Qin, F. Nori +1 more·Jul 21, 2025
Cluster states, as highly entangled multi-qubit states, are widely used as essential resources for quantum communication and quantum computing. However, due to the diverse requirements of applications for cluster states with specific entanglement str...
Ground and excited-state energies with analytic errors and short time evolution on a quantum computer
Timothy Stroschein, D. Castaldo, Markus Reiher·Jul 20, 2025
Accurately solving the Schr\"odinger equation remains a central challenge in computational physics, chemistry, and materials science. Here, we propose an alternative eigenvalue problem based on a system's autocorrelation function, avoiding direct ref...
Nonequilibrium steady states in multi-bath quantum collision models
Ronan McElvogue, Andrew K. Mitchell, Gabriel T. Landi +1 more·Jul 18, 2025
Collision models provide a simple and versatile setting to capture the dynamics of open quantum systems. The standard approach to thermalisition in this setting involves an environment of independent and identically-prepared thermal qubits, interacti...
Cryogenic performance evaluation of commercial SP4T microelectromechanical switch for quantum computing applications
Yong-bok Lee, Connor Devitt, Xu Zhu +3 more·Jul 17, 2025
Superconducting quantum computers have emerged as a leading platform for next-generation computing, offering exceptional scalability and unprecedented computational speeds. However, scaling these systems to millions of qubits for practical applicatio...
Entanglement-efficiency trade-offs in the fusion-based generation of photonic GHZ-like states
A. A. Melkozerov, M. Yu. Saygin, S. S. Straupe·Jul 16, 2025
Probabilistic entangling measurements are key operations in linear-optical quantum technologies, enabling the generation and manipulation of high-dimensional quantum states. While prior research has focused predominantly on specific entangled states,...
Long-ranged gates in quantum computation architectures with limited connectivity
Wolfgang Dür·Jul 11, 2025
We propose a quantum computation architecture based on geometries with nearest-neighbor interactions, including e.g. planar structures. We show how to efficiently split the role of qubits into data and entanglement-generation qubits. Multipartite ent...
Evaluating Post-Quantum Cryptographic Algorithms on Resource-Constrained Devices
Jesus Lopez, Viviana Cadena, Mohammad Saidur Rahman·Jul 10, 2025
The rapid advancement of quantum computing poses a critical threat to classical cryptographic algorithms such as RSA and ECC, particularly in Internet of Things (IoT) devices, where secure communication is essential but often constrained by limited c...
Emergent Harmonics in Josephson Tunnel Junctions Due to Series Inductance
Junghyun Kim, Max Hays, Ilan T. Rosen +11 more·Jul 10, 2025
Josephson tunnel junctions are essential elements of superconducting quantum circuits. The operability of these circuits presumes a $2\pi$-periodic sinusoidal potential of a tunnel junction, but higher-order corrections to this Josephson potential, o...