Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
High-expressibility Quantum Neural Networks using only classical resources
Marco Maronese, Francesco Ferrari, Matteo Vandelli +1 more·Jun 16, 2025
Quantum neural networks (QNNs), as currently formulated, are near-term quantum machine learning architectures that leverage parameterized quantum circuits with the aim of improving upon the performance of their classical counterparts. In this work, w...
Model Context Protocol (MCP) at First Glance: Studying the Security and Maintainability of MCP Servers
Mohammed Mehedi Hasan, Hao Li, Emad Fallahzadeh +3 more·Jun 16, 2025
Although Foundation Models (FMs), such as GPT-4, are increasingly used in domains like finance and software engineering, reliance on textual interfaces limits these models' real-world interaction. To address this, FM providers introduced a tool calle...
Quantum algorithm for solving generalized eigenvalue problems with application to the Schrödinger equation
Grzegorz Rajchel-Mieldzioć, Szymon Pliś, Emil Zak·Jun 16, 2025
Accurate computation of multiple eigenvalues of quantum Hamiltonians is essential in quantum chemistry, materials science, and molecular spectroscopy. Estimating excited-state energies is challenging for classical algorithms due to exponential scalin...
Nonclassicality of fully degenerate triple-photon states and its application in generating non-Gaussian entanglement
Da Zhang, Yu Zhang, Juan Gao·Jun 16, 2025
We theoretically demonstrate via numerical modeling that fully degenerate triple-photon states generated by three-mode spontaneous parametric down-conversion can be categorized into four distinct states: 0-phase, $π$/2-phase, $π$-phase, and 3$π$/2-ph...
Efficient algorithms for quantum chemistry on modular quantum processors
Tian Xue, Jacob P. Covey, Matthew Otten·Jun 16, 2025
Quantum chemistry is a promising application of future quantum computers, but the requirements on qubit count and other resources suggest that modular computing architectures will be required. We introduce an implementation of a quantum chemistry alg...
Fully Quantum Computational Entropies
Noam Avidan, Thomas A. Hahn, Joseph M. Renes +1 more·Jun 16, 2025
Quantum information theory, particularly its entropic formulations, has made remarkable strides in characterizing quantum systems and tasks. However, a critical dimension remains underexplored: computational efficiency. While classical computational ...
Blocklet concatenation: Low-overhead fault-tolerant protocols for fusion-based quantum computation
D. Litinski·Jun 16, 2025
We introduce a construction for protocols for fault-tolerant quantum computing based on code concatenation and transversal gates. These protocols can be interpreted as families of quantum circuits of low-weight stabilizer measurements without strict ...
Towards fault-tolerant quantum computation with universal continuous-variable gates
S. Blair, F. Arzani, G. Ferrini +1 more·Jun 16, 2025
Continuous-variable (CV) systems have shown remarkable potential for quantum computation, particularly excelling in scalability and error correction through bosonic encoding. Within this framework, the foundational notion of computational universalit...
The Metaphysics of Protection: Emergence, Agency, and the Ontological Status of Logical Qubits
K. Majid·Jun 16, 2025
This paper argues that the practice of fault-tolerant quantum computation, specifically the mechanism of Quantum Error Correction (QEC), offers a profoundly new lens through which to examine foundational questions of ontology, emergence, and interpre...
High-fidelity entanglement and coherent multi-qubit mapping in an atom array
Aruku Senoo, Alexander Baumgartner, Joanna W. Lis +5 more·Jun 16, 2025
Neutral atoms in optical tweezer arrays possess broad applicability for quantum information science, in computing, simulation, and metrology. Among atomic species, Ytterbium-171 is unique as it hosts multiple qubits, each of which is impactful for th...
Scalable Simulation of Quantum Many-Body Dynamics with Or-Represented Quantum Algebra
Lukas Broers, Rongyang Sun, Seiji Yunoki·Jun 16, 2025
High-performance numerical methods are essential not only for advancing quantum many-body physics but also for enabling integration with emerging quantum computing platforms. We present a scalable and general-purpose parallel algorithm for quantum si...
Leveraging erasure errors in logical qubits with metastable $^{171}$Yb atoms
Bichen Zhang, Genyue Liu, G. Bornet +6 more·Jun 16, 2025
Implementing large-scale quantum algorithms with practical advantage will require fault-tolerance achieved through quantum error correction, but the associated overhead is a significant cost. The overhead can be reduced by engineering physical qubits...
POPQC: Parallel Optimization for Quantum Circuits
Pengyu Liu, Jatin Arora, Mingkuan Xu +1 more·Jun 16, 2025
Optimization of quantum programs or circuits is a fundamental problem in quantum computing and remains a major challenge. State-of-the-art quantum circuit optimizers rely on heuristics and typically require superlinear, and even exponential, time. Re...
Robust certification of quantum instruments through a sequential communication game
Pritam Roy, Subhankar Bera, A. S. Majumdar +1 more·Jun 15, 2025
We propose a communication game in the sequential measurement scenario, involving a sender and two receivers with restricted communication among the latter parties. In the framework of the prepare-transform-measure scenario, we find a prominent quant...
Newton optimization for the Multiconfiguration Self Consistent Field method at the basis set limit: closed-shell two-electron systems
Evgueni Dinvay, Rasmus Vikhamar-Sandberg·Jun 15, 2025
The multiconfiguration self-consistent field (MCSCF) method is revisited with a specific focus on two-electron systems for simplicity. The wave function is represented as a linear combination of Slater determinants. Both the orbitals and the coeffici...
Studying Maximal Entanglement and Bell Nonlocality at an Electron-Ion Collider
Wei Qi, Zijing Guo, Bo-Wen Xiao·Jun 15, 2025
In this paper, we propose to test quantum entanglement and Bell nonlocality at an Electron-Ion Collider (EIC). By computing the spin correlations in quark-antiquark pairs produced via photon-gluon fusion, we find that longitudinally polarized photons...
A unified picture for quantum Zeno and anti-Zeno effects -- a review
Sacha Greenfield, A. Kamal, Justin Dressel +1 more·Jun 15, 2025
The quantum Zeno effect is a striking feature of quantum mechanics with foundational implications and practical applications in quantum control, error suppression, and error correction. In recent years, the effect has branched off into a variety of d...
The effect of Quantum Time Crystal Computing to Quantum Machine Learning methods
Hikaru Wakaura, A. B. Suksmono·Jun 15, 2025
Many body localization shows the robustness for external perturbations and time reversal symmetry on Time Crystal. This Time Crystal prolongs the coherence time, hence, it is used for quantum computers as qubits. Therefore, we established the method ...
Watermarking Quantum Neural Networks Based on Sample Grouped and Paired Training
Limengnan Zhou, Hanzhou Wu·Jun 15, 2025
Quantum neural networks (QNNs) leverage quantum computing to create powerful and efficient artificial intelligence models capable of solving complex problems significantly faster than traditional computers. With the fast development of quantum hardwa...
Fully Quantum Lattice Gas Automata Building Blocks for Computational Basis State Encodings
Călin A. Georgescu, Merel A. Schalkers, Matthias Möller·Jun 14, 2025
Lattice Gas Automata (LGA) is a classical method for simulating physical phenomena, including Computational Fluid Dynamics (CFD). Quantum LGA (QLGA) is the family of methods that implement LGA schemes on quantum computers. In recent years, QLGA has g...