Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
A reconciliation of the Pryce-Ward and Klein-Nishina statistics for semi-classical simulations of annihilation photons correlations
Petar Žugec, Eric Andreas Vivoda, Mihael Makek +1 more·Nov 27, 2025
Two photons from the ground state para-positronium annihilation are emitted in a maximally entangled singlet state of orthogonal polarizations. In case of the Compton scattering of both photons the phenomenon of quantum entanglement leads to a measur...
Recursive Clifford noise reduction
Aharon Brodutch, Gregory Baimetov, Edwin Tham +1 more·Nov 27, 2025
Clifford noise reduction (CliNR) is a partial error correction scheme that reduces the logical error rate of Clifford circuits at the cost of a modest qubit and gate overhead. The CliNR implementation of an $n$-qubit Clifford circuit of size $s$ achi...
An Optimal Framework for Constructing Lie-Algebra Generator Pools: Application to Variational Quantum Eigensolvers for Chemistry
Yaromir Viswanathan, Olivier Adjoua, César Feniou +2 more·Nov 27, 2025
Lie Algebras are powerful mathematical structures used in physics to describe sets of operators and associated combinations. A central task is to identify a minimal set of generators from which the algebra can be constructed. The classical search for...
Mixed cat states at low purity of light
N. I. Petrov·Nov 27, 2025
Pure states are usually used to observe quantum phenomena. In this study, we show that a quantum superposition of spatially displaced mixed cat states can be generated within an optical waveguide via nonparaxial unitary evolution of the initial low c...
Improved parameter initialization for the (local) unitary cluster Jastrow ansatz
Wan-Hsuan Lin, Fangchun Liang, Mario Motta +3 more·Nov 27, 2025
The unitary cluster Jastrow (UCJ) ansatz and its variant known as local UCJ (LUCJ) are promising choices for variational quantum algorithms for chemistry due to their combination of physical motivation and hardware efficiency. The parameters of these...
Quantum resource degradation theory within the framework of observational entropy decomposition
Xiang Zhou·Nov 27, 2025
We introduce a theory of quantum resource degradation grounded in a decomposition of observational entropy, which partitions the total resource into inter-block coherence ($\mathcal{C}_{\text{rel}}$) and intra-block noise ($\mathcal{D}_{\text{rel}}$)...
Excited state preparation on a quantum computer through adiabatic light-matter coupling
Hugh G. A. Burton, Maria-Andreea Filip·Nov 27, 2025
Quantum computing has the potential to transform simulations of quantum many-body problems at the heart of electronic structure theory. Efficient quantum algorithms to compute the eigenstates of fermionic Hamiltonians, such as quantum phase estimatio...
Programmable generation of arbitrary continuous-variable anharmonicities and nonlinear couplings
Teerawat Chalermpusitarak, Kai Schwennicke, Ivan Kassal +1 more·Nov 27, 2025
Harmonic oscillators are promising continuous-variable (CV) quantum resources because their infinite-dimensional Hilbert spaces allow for resource-efficient quantum computing and simulation. To reach their full potential, CV platforms need to be able...
Quantum phase transitions of the anisotropic Dicke-Ising model in driven Rydberg arrays
Bao-Yun Dong, Ying Liang, Stefano Chesi +1 more·Nov 27, 2025
We study the properties of a generalized Dicke-Ising model realized with an array of Rydberg atoms, driven by microwave electric fields and coupled to an optical cavity. As this platform allows for a precisely tunable anisotropy parameter, the model ...
Controlled-SWAP gates by tuning of interfering transition pathways in neutral atom arrays
Mohammadsadegh Khazali, Klaus Mølmer·Nov 27, 2025
Neutral-atom quantum processors employ Rydberg blockade for multiqubit phase operations but lack similar native exchange and conditional exchange gates, which are essential primitives for state verification, fermionic and XY-model simulation, and eff...
Quantum Simulation of Ligand-like Molecules through Sample-based Quantum Diagonalization in Density Matrix Embedding Framework
Ashish Kumar Patra, Anurag K. S. V., Sai Shankar P. +4 more·Nov 27, 2025
The accurate treatment of electron correlation in extended molecular systems remains computationally challenging using classical electronic structure methods. Hybrid quantum-classical algorithms offer a potential route to overcome these limitations; ...
Switchable Dissipative Ising coupling Based on Three-Body Coupling in magnon systems
Xi-Wen Dou, Zheng-Yang Zhou, Ai-Xi Chen·Nov 27, 2025
Magnonic systems present a compelling platform for quantum technology, owing to their strong capacity to form hybrid quantum systems via diverse couplings. To unlock the full potential of these systems, the engineering of flexible coupling between mu...
Quantum Bayesian Optimization for Quality Improvement in Fuselage Assembly
Jiayu Liu, Chong Liu, T. Rhone +1 more·Nov 27, 2025
Recent efforts in smart manufacturing have enhanced aerospace fuselage assembly processes, particularly by innovating shape adjustment techniques to minimize dimensional gaps between assembled sections. Existing approaches have shown promising result...
Quantum Circuit Reasoning Models: A Variational Framework for Differentiable Logical Inference
Andrew Kiruluta·Nov 26, 2025
This report introduces a novel class of reasoning architectures, termed Quantum Circuit Reasoning Models (QCRM), which extend the concept of Variational Quantum Circuits (VQC) from energy minimization and classification tasks to structured logical in...
No need to calibrate: characterization and compilation for high-fidelity circuit execution using imperfect gates
Ashish Kakkar, Samuel Marsh, Yulun Wang +5 more·Nov 26, 2025
We propose and validate on real quantum computing hardware a new method for extended two-qubit gate set design, replacing iterative, fine calibration with fast characterization of a small number of gate parameters which are then tracked and corrected...
Rapid ground state energy estimation with a Sparse Pauli Dynamics-enabled Variational Double Bracket Flow
Chinmay Shrikhande, Arnab Bachhar, Aaron Rodriguez Jimenez +1 more·Nov 26, 2025
Ground state energy estimation for strongly correlated quantum systems remains a central challenge in computational physics and chemistry. While tensor network methods like DMRG provide efficient solutions for one-dimensional systems, higher-dimensio...
Lazy Quantum Walks with Native Multiqubit Gates
Steph Foulds, Viv Kendon·Nov 26, 2025
Quantum walks, the quantum analogue of the classical random walk, have been shown to underpin quantum algorithms for fluid dynamics. We propose the quantum half-adder gate method for quantum walks as a good benchmark algorithm, specifically to compar...
Metastability in the Dissipative Quantum Rabi Model
Da-Wu Xiao, Chong Chen·Nov 26, 2025
The dissipative quantum Rabi model exhibits rich non-equilibrium physics, including a dissipative phase transition from the normal phase to the superradiant phase. In this work, we investigate the stability of the superradiant phase in the presence o...
Finite-key security analysis of the decoy-state BB84 QKD with passive measurement
Akihiro Mizutani, Shun Kawakami, Go Kato·Nov 26, 2025
The decoy-state Bennett-Brassard 1984 (BB84) quantum key distribution (QKD) protocol is widely regarded as the de facto standard for practical implementations. On the receiver side, passive basis choice is attractive because it significantly reduces ...
Cost-effective scalable quantum error mitigation for tiled Ansätze
Oskar Graulund Lentz Rasmussen, Erik Kjellgren, Peter Reinholdt +4 more·Nov 26, 2025
We introduce a cost-effective quantum error mitigation technique that builds on the recent Ansatz-based gate and readout error mitigation method (M0). The technique, tiled M0, leverages the unique structure of tiled Ansätze (e.g., tUPS, QNP, hardware...