Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,509 papers in 12 months (-19% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Microwave-activated high-fidelity three-qubit gate scheme for fixed-frequency superconducting qubits
Kui Zhao, Wei Ma, Ziting Wang +5 more·Apr 30, 2025
Scalable superconducting quantum processors require balancing critical constraints in coherence, control complexity, and spectral crowding. Fixed-frequency architectures suppress flux noise and simplify control via all-microwave operations but remain...
Erasure Minesweeper: Exploring Hybrid-Erasure Surface Code Architectures for Efficient Quantum Error Correction
Jason Chadwick, Mariesa Teo, Joshua Viszlai +2 more·Apr 30, 2025
Dual-rail erasure qubits can substantially improve the efficiency of quantum error correction, allowing lower error rates to be achieved with fewer qubits, but each erasure qubit requires $3 \times$ more transmons to implement compared to standard qu...
On the Efficacy of the Peeling Decoder for the Quantum Expander Code
Jefrin Sharmitha Prabhu, Abhinav Vaishya, Shobhit Bhatnagar +3 more·Apr 30, 2025
The problem of recovering from qubit erasures has recently gained attention as erasures occur in many physical systems such as photonic systems, trapped ions, superconducting qubits and circuit quantum electrodynamics. While several linear-time decod...
An unbiased measure over the matrix product state manifold
S. Leontica, Andrew G. Green·Apr 30, 2025
Matrix product states are useful representations for a large variety of naturally occurring quantum states. Studying their typical properties is important for understanding universal behavior, including quantum chaos and thermalization, as well as th...
Simulating quantum collision models with Hamiltonian simulations using early fault-tolerant quantum computers
Kushagra Garg, Zeeshan Ahmed, Subhadip Mitra +1 more·Apr 30, 2025
We develop randomized quantum algorithms to simulate quantum collision models, also known as repeated interaction schemes, which provide a rich framework to model various open-system dynamics. The underlying technique involves composing time evolutio...
On-chip Frequency divider in superconducting quantum circuit
Hui Wang, Chih-Yao Shih, Ching-Yeh Chen +3 more·Apr 30, 2025
Based on the physical process of two-atom simultaneous excitation by single photon, we proposed a frequency dividing scheme in superconducting quantum circuit. The frequency division for a microwave photon consists of two quantum processes: firstly, ...
Capturing Quantum Snapshots from a Single Copy via Mid-Circuit Measurement and Dynamic Circuit
Debarshi Kundu, Avimita Chatterjee, Archisman Ghosh +1 more·Apr 30, 2025
We propose Quantum Snapshot with Dynamic Circuit (QSDC), a hardware-agnostic, learning-driven framework for capturing quantum snapshots: non-destructive estimates of quantum states at arbitrary points within a quantum circuit, which can then be class...
Coherently mitigating boson samplers with stochastic errors
Deepesh Singh, Ryan J. Marshman, N. Walk +3 more·Apr 30, 2025
Sampling experiments provide a viable route to show quantum advantages of quantum devices over classical computers in well-defined computational tasks. However, quantum devices such as boson samplers are susceptible to various errors, including stoch...
PolyQROM: Orthogonal-Polynomial-Based Quantum Reduced-Order Model for Flow Field Analysis
Yu Fang, Cheng Xue, Tai-Ping Sun +10 more·Apr 30, 2025
Quantum computing promises exponential acceleration for fluid flow simulations, yet the measurement overhead required to extract flow features from quantum-encoded flow field data fundamentally undermines this advantage--a critical challenge termed t...
Using quantum annealing to generate test cases for cyber-physical systems
Hugo L. S. Araujo, Xinyi Wang, M. Mousavi +1 more·Apr 30, 2025
Quantum computing has emerged as a powerful tool to efficiently solve computational challenges, particularly in simulation and optimisation. However, hardware limitations prevent quantum computers from achieving the full theoretical potential. Among ...
Extracting average properties of disordered spin chains with translationally invariant tensor networks
Kevin Vervoort, Wei Tang, Nick Bultinck·Apr 29, 2025
We develop a tensor network-based method for calculating disorder-averaged expectation values in random spin chains without having to explicitly sample over disorder configurations. The algorithm exploits statistical translation invariance and works ...
Detecting genuine multipartite entanglement in multi-qubit devices with restricted measurements
Nicky Kai Hong Li, Xi Dai, Manuel H. Muñoz-Arias +3 more·Apr 29, 2025
Detecting genuine multipartite entanglement (GME) is a state-characterization task that benchmarks coherence and experimental control in quantum systems. Existing GME tests often require joint measurements on many qubits, posing challenges for system...
High-temperature partition functions and classical simulatability of long-range quantum systems
Jorge Sánchez-Segovia, Jan T. Schneider, Álvaro M. Alhambra·Apr 29, 2025
Long-range quantum systems, in which the interactions decay as $1/r^α$, are of increasing interest due to the variety of experimental set-ups in which they naturally appear. Motivated by this, we study fundamental properties of long-range spin system...
Bosonization of Noise Effects in Nonlocal Quantum Dynamics
Michele Fantechi, Marco Merkli·Apr 29, 2025
Quantum systems that interact non-locally with an environment are paradigms for exploring collective phenomena. They naturally emerge in various physical contexts involving long-range, many-body interactions. We consider a general class of such open ...
Hybrid quantum recurrent neural network for remaining useful life prediction
Olga Tsurkan, Aleksandra Konstantinova, Aleksandr Sedykh +5 more·Apr 29, 2025
Predictive maintenance in aerospace heavily relies on accurate estimation of the remaining useful life of jet engines. In this paper, we introduce a Hybrid Quantum Recurrent Neural Network framework, combining Quantum Long Short-Term Memory layers wi...
The Contextual Heisenberg Microscope
Jan-Åke Larsson·Apr 29, 2025
The Heisenberg microscope provides a powerful mental image of the measurement process of quantum mechanics (QM), attempting to explain the uncertainty relation through an uncontrollable back-action from the measurement device. However, Heisenberg's p...
Avoided crossings, degeneracies and Berry phases in the spectrum of quantum noise of driven-dissipative bosonic systems
Giuseppe Patera, Alessandro Pugliese·Apr 29, 2025
Avoided crossings are fundamental phenomena in quantum mechanics and photonics that originate from the interaction between coupled energy levels and have been extensively studied in linear dispersive dynamics. Their manifestation in open, driven-diss...
Iceberg Beyond the Tip: Co-Compilation of a Quantum Error Detection Code and a Quantum Algorithm
Yuwei Jin, Zichang He, Tianyi Hao +5 more·Apr 29, 2025
The rapid progress in quantum hardware is expected to make them viable tools for the study of quantum algorithms in the near term. The timeline to useful algorithmic experimentation can be accelerated by techniques that use many noisy shots to produc...
Q-Fusion: Diffusing Quantum Circuits
Collin Beaudoin, Swaroop Ghosh·Apr 29, 2025
Quantum computing holds great potential for solving socially relevant and computationally complex problems. Furthermore, quantum machine learning (QML) promises to rapidly improve our current machine learning capabilities. However, current noisy inte...
A foundry-fabricated spin qubit unit cell with in-situ dispersive readout
Pierre Hamonic, Mathieu Toubeix, G. Haas +10 more·Apr 29, 2025
Spin qubits based on semiconductor quantum dots are a promising prospect for quantum computation because of their high coherence times and gate fidelities. However, scaling up those structures to the numbers required by fault-tolerant quantum computi...