Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,522 papers in 12 months (-19% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Techniques for Quantum-Computing-Aided Algorithmic Composition: Experiments in Rhythm, Timbre, Harmony, and Space
Christopher Dobrian, Omar Costa Hamido·May 26, 2025
Quantum computing can be employed in computer-aided music composition to control various attributes of the music at different structural levels. This article describes the application of quantum simulation to model compositional decision making, the ...
Ab initio many-fermion structure calculations on a quantum computer
W. Du, Yangguang Yang, Zixin Liu +2 more·May 26, 2025
To overcome the limitations of existing algorithms for solving self-bound quantum many-body problems -- such as those encountered in nuclear and particle physics -- that access only a restricted subset of energy levels and provide limited structural ...
Quantum Resilience: Canadian Innovations in Quantum Error Correction and Quantum Error Mitigation
G. Saxena, Jack S. Baker, Pablo Valle +3 more·May 26, 2025
In celebration of the 2025 International Year of Quantum Science and Technology, this article highlights the pioneering achievements and ongoing innovations in quantum error correction and quantum error mitigation by Canadian institutions, academia a...
Quantum computation of hadron scattering in a lattice gauge theory
Z. Davoudi, Chung-Chun Hsieh, Saurabh V. Kadam·May 26, 2025
We present a digital quantum computation of two-hadron scattering in a $Z_2$ lattice gauge theory in 1+1 dimensions. We prepare well-separated single-particle wave packets with desired momentum-space wavefunctions, and simulate their collision throug...
Observation of hadron scattering in a lattice gauge theory on a quantum computer
Julian Schuhmacher, G. Su, Jesse J. Osborne +3 more·May 26, 2025
Scattering experiments are at the heart of high-energy physics (HEP), breaking matter down to its fundamental constituents, probing its formation, and providing deep insight into the inner workings of nature. In the current huge drive to forge quantu...
Running a six-qubit quantum circuit on a silicon spin qubit array
I. Fuentes, E. Raymenants, B. Undseth +9 more·May 25, 2025
The simplicity of encoding a qubit in the state of a single electron spin and the potential for their integration into industry-standard microchips continue to drive the field of semiconductor-based quantum computing. However, after decades of progre...
QMIO: A tightly integrated hybrid HPCQC system
Javier Cacheiro, Álvaro C. Sánchez, Russell Rundle +4 more·May 25, 2025
High-Performance Computing (HPC) systems are the most powerful tools that we currently have to solve complex scientific simulations. Quantum computing (QC) has the potential to enhance HPC systems by accelerating the execution of specific kernels tha...
Quantum simulation of elastic wave equations via Schr\"odingerisation
Shi Jin, Chun Zhang·May 24, 2025
In this paper we study quantum simulation algorithms on the elastic wave equations using the Schr\"odingerisation method. The Schr\"odingerisation method transforms any linear PDEs into a system of Schr\"odinger-type PDEs -with unitary evolution-usin...
Coherence as a resource for phase estimation
Felix Ahnefeld, T. Theurer, M. Plenio·May 24, 2025
Quantum phase estimation is a core problem in quantum technologies ranging from metrology to quantum computing, where phase estimation is a key subroutine in various algorithms. Here, we quantitatively connect the performance of phase estimation prot...
Hierarchical Quantum Error Correction with Hypergraph Product Code and Rotated Surface Code
Junichi Haruna, Keisuke Fujii·May 24, 2025
We propose and analyze a hierarchical quantum error correction (QEC) scheme that concatenates hypergraph product (HGP) codes with rotated surface codes, which is compatible with quantum computers with only nearest-neighbor interactions. The outer c...
Predictive Performance of Deep Quantum Data Re-uploading Models
Xin Wang, Han-Xiao Tao, Re-Bing Wu·May 24, 2025
Quantum machine learning models incorporating data re-uploading circuits have garnered significant attention due to their exceptional expressivity and trainability. However, their ability to generate accurate predictions on unseen data, referred to a...
The Lie Algebra of XY-mixer Topologies and Warm Starting QAOA for Constrained Optimization
Steven Kordonowy, Hannes Leipold·May 23, 2025
The XY-mixer has widespread utilization in modern quantum computing, including in variational quantum algorithms, such as Quantum Alternating Operator Ansatz (QAOA). The XY ansatz is particularly useful for solving Cardinality Constrained Optimizatio...
Non-Local Phase Estimation with a Rydberg-Superconducting Qubit Hybrid
Juan C. Boschero, Niels M. P. Neumann, Ward van der Schoot +1 more·May 23, 2025
Distributed quantum computing (DQC) is crucial for high-volume quantum processing in the NISQ era. Many different technologies are utilized to implement a quantum computer, each with a different advantages and disadvantages. Various research is perfo...
Neural Network Assisted Fermionic Compression Encoding: A Lossy-QSCI Framework for Resource-Efficient Ground-State Simulations
Yu-Cheng Chen, Ronin Wu, M. H. Cheng +1 more·May 23, 2025
Quantum computing promises to revolutionize many-body simulations for quantum chemistry, but its potential is constrained by limited qubits and noise in current devices. In this work, we introduce the Lossy Quantum Selected Configuration Interaction ...
Leveraging biased noise for more efficient quantum error correction at the circuit-level with two-level qubits
Josu Etxezarreta Martinez, Paul Schnabl, Javier Oliva del Moral +3 more·May 23, 2025
Tailoring quantum error correction codes (QECC) to biased noise has demonstrated significant benefits. However, most of the prior research on this topic has focused on code capacity noise models. Furthermore, a no-go theorem prevents the construction...
Anyonic Excitations in Warped and Curved AdS Backgrounds
Tzu-Miao Chou·May 23, 2025
This work studies anyonic excitations in warped and curved AdS$_3$ backgrounds via Chern-Simons theory. By incorporating geometric deformations such as conical defects, it is shown that curvature modifies the fusion and braiding properties through co...
Optimizing QAOA circuit transpilation with parity twine and SWAP network encodings
J. A. Montañez-Barrera, Yanjun Ji, M. V. Spakovsky +2 more·May 23, 2025
Mapping quantum approximate optimization algorithm (QAOA) circuits with non-trivial connectivity in fixed-layout quantum platforms such as superconducting-based quantum processing units (QPUs) requires a process of transpilation to match the quantum ...
Evaluation of derivatives using approximate generalized parameter shift rule
V. Abramavičius, E. Philip, Kaonan Micadei +5 more·May 23, 2025
Parameter shift rules are instrumental for derivatives estimation in a wide range of quantum algorithms, especially in the context of Quantum Machine Learning. Application of single-gap parameter shift rule is often not possible in algorithms running...
Optimizing State Preparation for Variational Quantum Regression on NISQ Hardware
F. Perkkola, Ilmo Salmeperä, Arianne Meijer-van de Griend +3 more·May 23, 2025
The execution of quantum algorithms on modern hardware is often constrained by noise and qubit decoherence, limiting the circuit depth and the number of gates that can be executed. Circuit optimization techniques help mitigate these limitations, enha...
A Variational Quantum Eigensolver Based on the Measurement Scheme Tailored to Multiband Tight-Binding Simulations
Dongkeun Lee, Hoon Ryu·May 23, 2025
We propose a cost-efficient measurement scheme of the variational quantum eigensolver (VQE) for atomistic simulations of electronic structures based on a tight-binding (TB) theory. Leveraging the lattice geometry of a material domain, the sparse TB H...