Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Classically Prepared, Quantumly Evolved: Hybrid Algorithm for Molecular Spectra
Alessandro Santini, Stefano Barison, Filippo Vicentini·Oct 28, 2025
We introduce a hybrid classical-quantum algorithm to compute dynamical correlation functions and excitation spectra in many-body quantum systems, with a focus on molecular systems. The method combines classical preparation of a perturbed ground state...
Quantum Combinatorial Reasoning for Large Language Models
Carlos Flores-Garrigos, Gaurav Dev, Michael Falkenthal +5 more·Oct 28, 2025
We design and implement a quantum combinatorial reasoning framework for large language models (QCR-LLM), integrating a real quantum computer in the hybrid workflow. QCR-LLM reformulates reasoning aggregation as a higher-order unconstrained binary opt...
Sustainable NARMA-10 Benchmarking for Quantum Reservoir Computing
Avyay Kodali, Priyanshi Singh, Pranay Pandey +3 more·Oct 27, 2025
This study compares Quantum Reservoir Computing (QRC) with classical models such as Echo State Networks (ESNs) and Long Short-Term Memory networks (LSTMs), as well as hybrid quantum-classical architectures (QLSTM), for the nonlinear autoregressive mo...
Benchmarking VQE Configurations: Architectures, Initializations, and Optimizers for Silicon Ground State Energy
Zakaria Boutakka, Nouhaila Innan, Muhammed Shafique +2 more·Oct 27, 2025
Quantum computing presents a promising path toward precise quantum chemical simulations, particularly for systems that challenge classical methods. This work investigates the performance of the Variational Quantum Eigensolver (VQE) in estimating the ...
Deterministic single-photon source with on-chip 5.6 GHz acoustic clock
Alexander S. Kuznetsov, Meysam Saeedi, Zixuan Wang +2 more·Oct 26, 2025
Scalable solid state single-photon sources (SPSs) with triggered single-photon emission rates exceeding a few GHz would aid in the wide technological adoption of photonic quantum technologies. We demonstrate triggering of a quantum dot (QD) single ph...
qc-kmeans: A Quantum Compressive K-Means Algorithm for NISQ Devices
Pedro Chumpitaz-Flores, My Duong, Ying Mao +1 more·Oct 26, 2025
Clustering on NISQ hardware is constrained by data loading and limited qubits. We present \textbf{qc-kmeans}, a hybrid compressive $k$-means that summarizes a dataset with a constant-size Fourier-feature sketch and selects centroids by solving small ...
Making the Virtual Real: Measurement-Powered Tunneling Engines
Rafael Sánchez, Alok Nath Singh, Andrew N. Jordan +1 more·Oct 25, 2025
Quantum tunneling allows electrons to be transferred between two regions separated by an energetically forbidden barrier. Performing a position measurement that finds a particle in the barrier forces the tunneling electrons to transition from having ...
Coherent Perfect Absorption: Zero Reflection Without Linewidth Suppression
M. Ebrahimi, Y. Huang, A. Rashedi +1 more·Oct 25, 2025
Motivated by recent claims, we revisit how coherent perfect absorption (CPA) influences cavity and polaritonic linewidths. Using standard input output theory and measurements on single port bare microwave cavities and cavity magnon hybrids, we find t...
HPC-Driven Modeling with ML-Based Surrogates for Magnon-Photon Dynamics in Hybrid Quantum Systems
Jialin Song, Yingheng Tang, Pu Ren +8 more·Oct 25, 2025
Simulating hybrid magnonic quantum systems remains a challenge due to the large disparity between the timescales of the two systems. We present a massively parallel GPU-based simulation framework that enables fully coupled, large-scale modeling of on...
Quantum Similarity-Driven QUBO Framework for Multi-Period Supply Chain Allocation using Time-Multiplexed Coherent Ising Machines and Simulated Quantum Annealing
Rushikesh Ubale, Yasar Mulani, Abhay Suresh +4 more·Oct 24, 2025
Multi-period stock-keeping unit (SKU) allocation in supply chains is a combinatorial optimization problem that is both NP-hard and operationally critical, requiring simultaneous attention to profitability, feasibility, and diversity. Quadratic uncons...
From Discrete to Continuous-Variable Systems via Jordan-Schwinger Tomographic Transformation
Liubov A. Markovich, Vladimir A. Orlov, Alexey N. Rubtsov +1 more·Oct 24, 2025
Hybrid quantum systems that combine discrete-variable (DV) and continuous-variable (CV) architectures represent a promising direction in quantum information science. However, transferring concepts, information and states between such fundamentally di...
Obtaining Accurate Ground-State Properties on Near-term Quantum Devices
Qi-Ming Ding, Jiawei Peng, Junxiang Huang +6 more·Oct 24, 2025
Accurate ground-state calculations on noisy quantum computers are fundamentally limited by restricted ansatz expressivity and unavoidable hardware errors. We introduce a hybrid-quantum classical framework that simultaneously addresses these challenge...
Quantum Neural Network Architectures for Multivariate Time-Series Forecasting
Sandra Ranilla-Cortina, Diego A. Aranda, Jorge Ballesteros +4 more·Oct 24, 2025
In this paper, we address the challenge of multivariate time-series forecasting using quantum machine learning techniques. We introduce adaptation strategies that extend variational quantum circuit models, traditionally limited to univariate data, to...
Role of inefficient measurement in realizing post-selection-based non-Hermitian qubits
Roson Nongthombam, Aman Verma, Amarendra K. Sarma·Oct 24, 2025
Post-selecting against quantum jumps into the ground state confines the evolution of the three-level system to the excited states manifold, effectively realizing a PT-symmetric non-Hermitian qubit. In this work, by introducing post-selection efficien...
Hybrid Lattice Surgery: Non-Clifford Gates via Non-Abelian Surface Codes
Sheng-Jie Huang, Alison Warman, Sakura Schafer-Nameki +1 more·Oct 23, 2025
In universal fault-tolerant quantum computing, implementing logical non-Clifford gates often demands substantial spacetime resources for many error-correcting codes, including the high-threshold surface code. A critical mission for realizing large-sc...
Kondo breakdown induced by the non-Hermitian complex hybridization
Kazuki Yamamoto, Masaya Nakagawa, Norio Kawakami·Oct 23, 2025
Recently, a non-Hermitian Anderson impurity model with one-body loss has been studied in [Phys. Rev. B 111, 125157 (2025)}], and it has been demonstrated that the renormalization effect generated by strong correlations counterintuitively changes the ...
A Full Stack Framework for High Performance Quantum-Classical Computing
Xin Zhan, K. Grace Johnson, Aniello Esposito +5 more·Oct 23, 2025
To address the growing needs for scalable High Performance Computing (HPC) and Quantum Computing (QC) integration, we present our HPC-QC full stack framework and its hybrid workload development capability with modular hardware/device-agnostic softwar...
Zero-field identification and control of hydrogen-related electron-nuclear spin registers in diamond
Alexander Ungar, Hao Tang, Andrew Stasiuk +5 more·Oct 22, 2025
Spin defects in diamond serve as powerful building blocks for quantum technologies, especially for applications in quantum sensing and quantum networking. Electron-nuclear defects formed in the environment of optically active spins, such as the nitro...
Quantum Machine Learning methods for Fourier-based distribution estimation with application in option pricing
Fernando Alonso, Álvaro Leitao, Carlos Vázquez·Oct 22, 2025
The ongoing progress in quantum technologies has fueled a sustained exploration of their potential applications across various domains. One particularly promising field is quantitative finance, where a central challenge is the pricing of financial de...
Dynamic control of dipole decay rate via graphene plexcitons
Hira Asif, Taner Tarik Aytas, Ramazan Sahin·Oct 22, 2025
Active control of the radiative properties of quantum emitters through engineered light-matter interactions is a key challenge in nanophotonics and quantum optics. In this work, we demonstrate dynamic modulation of dipole's decay rate by exploiting t...