Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Hybrid Quantum Transformer for Language Generation
Desheng Kong, Xiangshuo Cui, Jiaying Jin +2 more·Nov 2, 2025
Although quantum computing has been increasingly applied to replace classical computation, most existing quantum or hybrid models remain confined to simple tasks, with no successful application to large-scale natural language generation to date. In t...
Optimizing magnetic coupling in lumped element superconducting resonators for molecular spin qubits
Marcos Rubín-Osanz, David Rodriguez, Ignacio Gimeno +18 more·Nov 2, 2025
We engineer lumped-element superconducting resonators that maximize magnetic coupling to molecular spin qubits, achieving record single-spin couplings up to $100$ kHz and collective couplings exceeding $10$ MHz. The resonators interact with PTMr orga...
Principle of Minimal Heating for Collapse and Hybrid Gravitational Models
Nicolò Piccione·Nov 1, 2025
Energy nonconservation is a prominent, testable prediction of collapse and hybrid classical-quantum gravitational models. Without smearing of certain operators, the associated heating (or energy increase) rate diverges, yet the smearing distribution ...
Superpositional Gradient Descent: Harnessing Quantum Principles for Model Training
Ahmet Erdem Pamuk, Emir Kaan Özdemir, Şuayp Talha Kocabay·Nov 1, 2025
Large language models (LLMs) are increasingly trained with classical optimization techniques like AdamW to improve convergence and generalization. However, the mechanisms by which quantum-inspired methods enhance classical training remain underexplor...
Hybrid Quantum-Classical Optimization of the Resource Scheduling Problem
Tyler Christeson, Md Habib Ullah, Ali Arabnya +2 more·Nov 1, 2025
Resource scheduling is critical in many industries, especially in power systems. The Unit Commitment problem determines the on/off status and output levels of generators under many constraints. Traditional exact methods, such as mathematical programm...
Closed-loop calculations of electronic structure on a quantum processor and a classical supercomputer at full scale
Tomonori Shirakawa, Javier Robledo-Moreno, Toshinari Itoko +18 more·Oct 31, 2025
Quantum computers must operate in concert with classical computers to deliver on the promise of quantum advantage for practical problems. To achieve that, it is important to understand how quantum and classical computing can interact together, and ho...
Magnetic wideband VHF localized field probe using magnon polaritons
G. Soares, N. Crescini, G. Carugno +1 more·Oct 31, 2025
We present here an optimisation and demonstration of a wide band instrument capable of measuring localised and directionally alternated magnetic fields below pT in the very high frequency (VHF) range. We take advantage of the magnon-photon hybridizat...
Sample-Based Krylov Quantum Diagonalization for the Schwinger Model on Trapped-Ion and Superconducting Quantum Processors
Emil Otis Rosanowski, Jurek Eisinger, Lena Funcke +2 more·Oct 30, 2025
We apply the recently proposed Sample-based Krylov Quantum Diagonalization (SKQD) method to lattice gauge theories, using the Schwinger model with a $θ$-term as a benchmark. SKQD approximates the ground state of a Hamiltonian, employing a hybrid quan...
Entanglement-assisted circuit knitting: Distributed quantum computing using limited entanglement resources
Shao-Hua Hu, Po-Sung Liu, Jun-Yi Wu·Oct 30, 2025
Distributed quantum computing (DQC) provides a promising route toward scalable quantum computation, where entanglement-assisted LOCC and circuit knitting represent two complementary approaches. The former deterministically realizes nonlocal operation...
Digitized Counterdiabatic Quantum Sampling
Narendra N. Hegade, Nachiket L. Kortikar, Balaganchi A. Bhargava +9 more·Oct 30, 2025
We propose digitized counterdiabatic quantum sampling (DCQS), a hybrid quantum-classical algorithm for efficient sampling from energy-based models, such as low-temperature Boltzmann distributions. The method utilizes counterdiabatic protocols, which ...
Tackling the Challenges of Adding Pulse-level Support to a Heterogeneous HPCQC Software Stack: MQSS Pulse
Jorge Echavarria, Muhammad Nufail Farooqi, Amit Devra +22 more·Oct 30, 2025
We study the problem of adding native pulse-level control to heterogeneous High Performance Computing-Quantum Computing (HPCQC) software stacks, using the Munich Quantum Software Stack (MQSS) as a case study. The goal is to expand the capabilities of...
Benchmarking quantum key distribution by mixing single photons and laser light
Yann Portella, Petr Steindl, Juan Rafael Álvarez +8 more·Oct 30, 2025
Quantum key distribution is a key application of quantum mechanics, shaping the future of privacy and secure communications. Many protocols require single photons, often approximated by strongly attenuated laser pulses. Here, we harness the emission ...
Practical hybrid decoding scheme for parity-encoded spin systems
Yoshihiro Nambu·Oct 30, 2025
We propose a practical hybrid decoding scheme for the parity-encoding architecture. This architecture was first introduced by N. Sourlas as a computational technique for tackling hard optimization problems, especially those modeled by spin systems su...
Optimal Displacement Sensing with Spin-Dependent Squeezed States
Liam J. Bond, Christophe H. Valahu, Athreya Shankar +2 more·Oct 29, 2025
Displacement sensing is a fundamental task in metrology. However, the development of quantum-enhanced sensors that fully utilize the available degrees of freedom in many-body quantum systems remains an outstanding challenge. We propose novel many-bod...
Establishing Baselines for Photonic Quantum Machine Learning: Insights from an Open, Collaborative Initiative
Cassandre Notton, Vassilis Apostolou, Agathe Senellart +28 more·Oct 29, 2025
The Perceval Challenge is an open, reproducible benchmark designed to assess the potential of photonic quantum computing for machine learning. Focusing on a reduced and hardware-feasible version of the MNIST digit classification task or near-term pho...
Engineering Atom-Photon Hybridization with Density-Modulated Atomic Ensembles in Coupled Cavities
Carlos E. Máximo, Romain Bachelard, Tobias Donner·Oct 29, 2025
Radiation-matter hybridization allows atoms to serve as mediators of effective interactions between light modes and, conversely, to interact among themselves via light. Here we exploit the spatial structure of atomic ensembles to control the coupling...
Hybrid Quantum-Classical Recurrent Neural Networks
Wenduan Xu·Oct 29, 2025
We present a hybrid quantum-classical recurrent neural network (QRNN) architecture in which the recurrent core is realized as a parametrized quantum circuit (PQC) controlled by a classical feedforward network. The hidden state is the quantum state of...
Variational quantum computing for quantum simulation: principles, implementations, and challenges
Lucas Q. Galvão, Anna Beatriz M. de Souza, Marcelo A. Moret +1 more·Oct 29, 2025
This work presents a comprehensive overview of variational quantum computing and their key role in advancing quantum simulation. This work explores the simulation of quantum systems and sets itself apart from approaches centered on classical data pro...
Silicon-based Josephson junction field-effect transistors enabling cryogenic logic and quantum technologies
Yusheng Xiong, Kaveh Delfanazari·Oct 29, 2025
The continuous miniaturisation of metal-oxide-semiconductor field-effect transistors (MOSFETs) from long- to short-channel architectures has advanced beyond the predictions of Moore's Law. Continued advances in semiconductor electronics, even near cu...
Geometric and Orbital Control of Correlated States in Small Hubbard Clusters
Shivanshu Dwivedi, K. Palandage·Oct 29, 2025
Arrays of semiconductor quantum dots provide a powerful platform to design correlated quantum matter from the bottom up. We establish a predictive framework for engineering local electron pairing in these artificial molecules by systematically deploy...