Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Constructive interference at the edge of quantum ergodic dynamics
D. Abanin, R. Acharya, Laleh Aghababaie-Beni +262 more·Jun 11, 2025
Quantum observables in the form of few-point correlators are the key to characterizing the dynamics of quantum many-body systems. In dynamics with fast entanglement generation, quantum observables generally become insensitive to the details of the un...
Quantum Federated Learning for Multimodal Data: A Modality-Agnostic Approach
Atit Pokharel, Ratun Rahman, Thomas Morris +1 more·Jun 11, 2025
Quantum federated learning (QFL) has been recently introduced to enable a distributed privacy-preserving quantum machine learning (QML) model training across quantum processors (clients). Despite recent research efforts, existing QFL frameworks predo...
Hybrid classical-quantum sampling for lattice scalar field theory
Hee-Cheol Kim, Jangho Kim·Jun 11, 2025
We investigate lattice scalar field theory in two-dimensional Euclidean space via a quantum annealer. To accommodate the quartic interaction terms, we introduce three schemes for rewriting them as quadratic polynomials through the use of auxiliary qu...
Local surrogates for quantum machine learning
Sreeraj Rajindran Nair, Christopher Ferrie·Jun 11, 2025
Surrogates have been proposed as classical simulations of the pretrained quantum learning models, which are capable of mimicking the input-output relation inherent in the quantum model. Quantum hardware within this framework is used for training and ...
Quantum Resource Assay for the Grid-Based Simulation of the Photodynamics of Pyrazine
Xiaoning Feng, Hans Hon Sang Chan, David P. Tew·Jun 10, 2025
We establish and analyse the performance and resource requirements of an end-to-end fault-tolerant quantum algorithm for computing the absorption spectrum and population dynamics of photoexcited pyrazine. The quantum circuit construction consists of ...
Adaptive quantum dynamics with the time-dependent variational Monte Carlo method
Raffaele Salioni, Rocco Martinazzo, Davide Emilio Galli +1 more·Jun 10, 2025
We introduce an extension of the time-dependent variational Monte Carlo (tVMC) method that adaptively controls the expressivity of the variational quantum state during the simulation of the dynamics. This adaptive tVMC (atVMC) approach is specificall...
Digital Quantum Simulation of the Kitaev Quantum Spin Liquid
Seongju Park, Eun-Gook Moon·Jun 10, 2025
The ground state of the Kitaev quantum spin liquid on a honeycomb lattice is an intriguing many-body state characterized by its topological order and massive entanglement. One of the significant issues is to prepare and manipulate the ground state as...
Qymera: Simulating Quantum Circuits using RDBMS
Tim Littau, Rihan Hai·Jun 10, 2025
Quantum circuit simulation is crucial for quantum computing such as validating quantum algorithms. We present Qymera, a system that repurposes relational database management systems (RDBMSs) for simulation by translating circuits into SQL queries, al...
Optimizing Superconducting Three-Qubit Gates for Surface-Code Error Correction
Stephan Tasler, Josias Old, Lukas Heunisch +4 more·Jun 10, 2025
Quantum error correction (QEC) is one of the crucial building blocks for developing quantum computers that have significant potential for reaching a quantum advantage in applications. Prominent candidates for QEC are stabilizer codes for which period...
Quantum Simulation of Noisy Quantum Networks
Ferran Riera-Sàbat, Jorge Miguel-Ramiro, W. Dur·Jun 10, 2025
Complex quantum networks are not only hard to establish, but also difficult to simulate due to the exponentially growing state space and noise-induced imperfections. In this work, we propose an alternative approach that leverage quantum computers and...
Low-Level and NUMA-Aware Optimization for High-Performance Quantum Simulation
A. Rezaei, Luc Jaulmes, Maria Bahna +2 more·Jun 10, 2025
Scalable classical simulation of quantum circuits is crucial for advancing quantum algorithm development and validating emerging hardware. This work focuses on performance enhancements through targeted low-level and NUMA-aware tuning on a single-node...
Scaling Portfolio Diversification with Quantum Circuit Cutting Techniques
Vicente P. Soloviev, Antonio M'arquez Romero, Josh J. M. Kirsopp +1 more·Jun 10, 2025
Quantum Approximate Optimization Algorithms (QAOA) have demonstrated a strong potential in addressing graph-based optimization problems. However, the execution of large-scale quantum circuits remains constrained by the limitations of current quantum ...
Error-mitigated quantum metrology via enhanced virtual purification
Xiaodie Lin, Haidong Yuan·Jun 9, 2025
Quantum metrology stands as a leading application of quantum science and technology, yet noise often constrains its precision and sensitivity. In near-term quantum metrology, existing protocols largely depend on virtual state purification, but signif...
Signatures of Environment-Induced Quantum Synchronization Transitions via Two-body Dissipator Engineering
Xingli Li, Yan Li, Yangqian Yan·Jun 9, 2025
Metronome synchronization and the transition between the in-phase and anti-phase synchronization have been observed in classical systems. We demonstrate the quantum analog of this phenomenon in a two-qubit system coupled to a common environment. Trac...
Quantum Resource Comparison for Two Leading Surface Code Lattice Surgery Approaches
Tyler Leblond, Ryan S. Bennink·Jun 9, 2025
Hamiltonian simulation is one of the most promising candidates for the demonstration of quantum advantage within the next ten years, and several studies have proposed end-to-end resource estimates for executing such algorithms on fault-tolerant quant...
Scalable Simulation of Fermionic Encoding Performance on Noisy Quantum Computers
Emiliia Dyrenkova, Raymond Laflamme, Michael Vasmer·Jun 6, 2025
A compelling application of quantum computers with thousands of qubits is quantum simulation. Simulating fermionic systems is both a problem with clear real-world applications and a computationally challenging task. In order to simulate a system of f...
Pathfinding Quantum Simulations of Neutrinoless Double-Beta Decay
Ivan A. Chernyshev, Roland C. Farrell, Marc Illa +10 more·Jun 6, 2025
We present results from co-designed quantum simulations of the neutrinoless double-beta decay of a simple nucleus in 1+1D quantum chromodynamics using IonQ's Forte-generation trapped-ion quantum computers. Electrons, neutrinos, and up and down quarks...
State Dependent Optimization with Quantum Circuit Cutting
Xinpeng Li, Ji Liu, Jeffrey M. Larson +4 more·Jun 6, 2025
Quantum circuits can be reduced through optimization to better fit the constraints of quantum hardware. One such method, initial-state dependent optimization (ISDO), reduces gate count by leveraging knowledge of the input quantum states. Surprisingly...
TQml Simulator: optimized simulation of quantum machine learning
Viacheslav Kuzmin, Basil Kyriacou, Tatjana Protasevich +3 more·Jun 5, 2025
Hardware-efficient circuits employed in Quantum Machine Learning are typically composed of alternating layers of uniformly applied gates. High-speed numerical simulators for such circuits are crucial for advancing research in this field. In this work...
Impact of Temporally Correlated Dephasing Noise on the Fidelity of the 2-Qubit Deutsch-Jozsa Algorithm
Souvik Ghosh·Jun 5, 2025
Understanding the influence of realistic noise on quantum algorithms is paramount for the advancement of quantum computation. While often modeled as Markovian, environmental noise in quantum systems frequently exhibits temporal correlations, leading ...