Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Exceptional phase transition in a single Kerr-cat qubit
Pei-Rong Han, Tian-Le Yang, Wen Ning +4 more·Feb 2, 2026
Exceptional points in non-Hermitian quantum systems give rise to novel genuine quantum phenomena. Recent explorations of exceptional-point-induced quantum phase transitions have extended from discrete-variable to continuous-variable-encoded quantum s...
Numerical Error Extraction by Quantum Measurement Algorithm
Clement Ronfaut, Robin Ollive, Stephane Louise·Feb 2, 2026
Important quantum algorithm routines allow the implementation of specific quantum operations (a.k.a. gates) by combining basic quantum circuits with an iterative structure. In this structure, the number of repetitions of the basic circuit pattern is ...
Dual channel multi-product formulas
Seung Park, Sangjin Lee, Kyunghyun Baek·Feb 2, 2026
Product-formula (PF) based quantum simulation is a promising approach for simulating quantum systems on near-term quantum computers. Achieving a desired simulation precision typically requires a polynomially increasing number of Trotter steps, which ...
Quantum Jacobi-Davidson Method
Shaobo Zhang, Akib Karim, Harry M. Quiney +1 more·Feb 2, 2026
Computing electronic structures of quantum systems is a key task underpinning many applications in photonics, solid-state physics, and quantum technologies. This task is typically performed through iterative algorithms to find the energy eigenstates ...
Scalable Tensor Network Simulation for Quantum-Classical Dual Kernel
Mei Ian Sam, Tai-Yu Li·Feb 1, 2026
This paper presents an efficient and scalable tensor network framework for quantum kernel circuit simulation, alleviating practical costs associated with increasing qubit counts and data size. The framework enables systematic large-scale evaluation o...
Suppression of Decoherence at Exceptional Transitions
Mei-Lin Li, Zuo Wang, Liang He·Feb 1, 2026
Decoherence is strongly influenced by environmental criticality, with conventional Hermitian critical points typically enhancing the loss of quantum coherence. Here, we show that this paradigm is fundamentally altered in non-Hermitian environments. F...
From Block Diagrams to Bloch Spheres: Graphical Quantum Circuit Simulation in LabVIEW
Murtaza Vefadar·Jan 31, 2026
As quantum computing transitions from theoretical physics to engineering applications, there is a growing need for accessible simulation tools that bridge the gap between abstract linear algebra and practical implementation. While text-based framewor...
Entanglement-Dependent Error Bounds for Hamiltonian Simulation
Prateek P. Kulkarni·Jan 31, 2026
We establish tight connections between entanglement entropy and the approximation error in Trotter-Suzuki product formulas for Hamiltonian simulation. Product formulas remain the workhorse of quantum simulation on near-term devices, yet standard erro...
Compact U(1) Lattice Gauge Theory in Superconducting Circuits with Infinite-Dimensional Local Hilbert Spaces
J. M. Alcaine-Cuervo, S. Pradhan, E. Rico +2 more·Jan 30, 2026
We propose a superconducting-circuit architecture that realizes a compact U(1) lattice gauge theory using the intrinsic infinite-dimensional Hilbert space of phase and charge variables. The gauge and matter fields are encoded directly in the degrees ...
TopoLS: Lattice Surgery Compilation via Topological Program Transformations
Junyu Zhou, Yuhao Liu, Ethan Decker +5 more·Jan 30, 2026
Lattice surgery is a leading approach for implementing fault-tolerant logical operations in surface code quantum computing, but compiling efficient lattice surgery layouts remains challenging. Existing compilers are largely circuit-centric and operat...
Margin-Based Generalisation Bounds for Quantum Kernel Methods under Local Depolarising Noise
Saarisha Govender, Ilya Sinayskiy·Jan 30, 2026
Generalisation refers to the ability of a machine learning (ML) model to successfully apply patterns learned from training data to new, unseen data. Quantum devices in the current Noisy Intermediate-Scale Quantum (NISQ) era are inherently affected by...
Trojan-Resilient NTT: Protecting Against Control Flow and Timing Faults on Reconfigurable Platforms
Rourab Paul, Krishnendu Guha, Amlan Chakrabarti·Jan 30, 2026
Number Theoretic Transform (NTT) is the most essential component for polynomial multiplications used in lattice-based Post-Quantum Cryptography (PQC) algorithms such as Kyber, Dilithium, NTRU etc. However, side-channel attacks (SCA) and hardware vuln...
Quantum-Inspired Reinforcement Learning for Secure and Sustainable AIoT-Driven Supply Chain Systems
Muhammad Bilal Akram Dastagir, Omer Tariq, Shahid Mumtaz +2 more·Jan 29, 2026
Modern supply chains must balance high-speed logistics with environmental impact and security constraints, prompting a surge of interest in AI-enabled Internet of Things (AIoT) solutions for global commerce. However, conventional supply chain optimiz...
Entanglement and discord classification via deep learning
Katherine Muñoz-Mellado, Daniel Uzcátegui-Contreras, Antonio Guerra +2 more·Jan 29, 2026
In this work, we propose a deep learning-based approach for quantum entanglement and discord classification using convolutional autoencoders. We train models to distinguish entangled from separable bipartite states for $d \times d$ systems with local...
Designing quantum technologies with a quantum computer
Juan Naranjo, Thi Ha Kyaw, Gaurav Saxena +2 more·Jan 29, 2026
Interacting spin systems in solids underpin a wide range of quantum technologies, from quantum sensors and single-photon sources to spin-defect-based quantum registers and processors. We develop a quantum-computer-aided framework for simulating such ...
A scalable quantum-enhanced greedy algorithm for maximum independent set problems
Elisabeth Wybo, Jami Rönkkö, Olli Hirviniemi +2 more·Jan 29, 2026
We investigate a hybrid quantum-classical algorithm for solving the Maximum Independent Set (MIS) problem on regular graphs, combining the Quantum Approximate Optimization Algorithm (QAOA) with a minimal degree classical greedy algorithm. The method ...
Quantum Random Features: A Spectral Framework for Quantum Machine Learning
Akitada Sakurai, Aoi Hayashi, William John Munro +1 more·Jan 29, 2026
Quantum machine learning (QML) models often require deep, parameterized circuits to capture complex frequency components, limiting their scalability and near-term implementation. We introduce \textit{Quantum Random Features} (QRF) and \textit{Quantum...
Quantum Simulation with Fluxonium Qutrit Arrays
Ivan Amelio, Quentin Ficheux, Nathan Goldman·Jan 29, 2026
Fluxonium superconducting circuits were originally proposed to realize highly coherent qubits. In this work, we explore how these circuits can be used to implement and harness qutrits, by tuning their energy levels and matrix elements via an external...
A levitated nano-accelerometer sensitized by quantum quench
M. Kamba, S. Otabe, K. Funo +2 more·Jan 28, 2026
We realize a nanoscale accelerometer exploiting the nonequilibrium dynamics of a nanoparticle near the quantum ground state. We explore the dynamics after quenching the trapping potential and find that rapid quenching provides an instance at which th...
Polaron-Polaritons in Subwavelength Arrays of Trapped Atoms
Kristian Knakkergaard Nielsen, Lukas Wangler, David Castells-Graells +4 more·Jan 28, 2026
Subwavelength arrays of atoms trapped in optical lattices or tweezers are inherently susceptible to deformations: Optomechanical forces produce lattice distortions, which, in turn, modify the optical response of the array. We show that this coupling ...