Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Exploring the performance of superposition of product states: from 1D to 3D quantum spin systems
Apimuk Sornsaeng, Itai Arad, Dario Poletti·Nov 11, 2025
Tensor networks (TNs) are one of the best available tools to study many-body quantum systems. TNs are particularly suitable for one-dimensional local Hamiltonians, while their performance for generic geometries is mainly limited by two aspects: the l...
An Information-Minimal Geometry for Qubit-Efficient Optimization
Gordon Ma, Dimitris G. Angelakis·Nov 11, 2025
Qubit-efficient optimization studies how large combinatorial problems can be addressed with quantum circuits whose width is far smaller than the number of logical variables. In quadratic unconstrained binary optimization (QUBO), objective values depe...
Hybrid Quantum-Classical Selective State Space Artificial Intelligence
Amin Ebrahimi, Farzan Haddadi·Nov 11, 2025
Hybrid Quantum Classical (HQC) algorithms constitute one of the most effective paradigms for exploiting the computational advantages of quantum systems in large-scale numerical tasks. By operating in high-dimensional Hilbert spaces, quantum circuits ...
Nonexistence of maximally entangled mixed states for a fixed spectrum
Gonzalo Camacho, Julio I. de Vicente·Nov 11, 2025
The existence of a maximally entangled pure state is a cornerstone result of entanglement theory that has paramount consequences in quantum information theory. A natural generalization of this property is to consider whether a notion of maximal entan...
Mixed-state phase structure of gauge-Higgs subsystem codes under logical-preserving decoherence
Yoshihito Kuno, Ikuo Ichinose·Nov 11, 2025
Some of lattice-gauge-theory models, in particular gauge-Higgs model (GHM), can be regarded and work as a subsystem code. This work studies the effect of local-gauge-symmetric decoherence on the GHM from the perspective of the subsystem code. We clar...
Realization of an all-optical effective negative-mass oscillator for coherent quantum noise cancellation
Nived Johny, Jonas Junker, Bernd Schulte +3 more·Nov 11, 2025
We report the realization of an all-optical, tabletop effective-negative-mass oscillator (ENMO) scheme capable of canceling quantum noise when cascaded with an opto-mechanical sensor susceptible to (quantum) radiation pressure noise. Our coherent qua...
Mutual Mana: Converting Local Magic into Correlations via Discrete Beamsplitters
Linshuai Zhang, Huihui Li·Nov 11, 2025
Magic (non-stabilizerness) is a key resource for achieving universal fault-tolerant quantum computation beyond classical computation. While previous studies have primarily focused on magic in single systems, its interactions and distribution in multi...
Enhancing Remote Magnon-Magnon Entanglement with Quantum Interference
Yuan Gong, Yan-Xue Cheng, Wei Xiong +1 more·Nov 11, 2025
Cavity magnonics, owing to its strong magnon-photon coupling and excellent tunability, has attracted significant interest in quantum information science. However, achieving strong and robust macroscopic entanglement remains a long-standing challenge ...
Quantum Semantic Communication Beyond the Shannon-Wyner Channel Capacity
Min Wang, Gui-Fa Zhu, Guo-Fei Long +5 more·Nov 11, 2025
Quantum Secure Direct Communication (QSDC), a paradigm-shifting breakthrough in quantum communication, exploits quantum states for unmediated information transmission. Rooted in the inviolable fundamental laws of quantum mechanics, QSDC enables ultra...
Nonclassical State Generation and Quantum Metrology in the Double-Morse Potential
Firoz Chogle, Berihu Teklu, Jorge Zubelli +1 more·Nov 10, 2025
In this paper, we investigate the nonlinear properties of the double-Morse potential as a possible resource for single-mode quantum states because of its double-well structure and anharmonicity. We derive the ground state wave function and the associ...
Extending QAOA-GPT to Higher-Order Quantum Optimization Problems
Leanto Sunny, Abhinav Rijal, George Siopsis·Nov 10, 2025
The recently proposed QAOA-GPT framework demonstrated that generative pre-trained transformers can learn mappings between problem graphs and optimized quantum circuits for the Quantum Approximate Optimization Algorithm (QAOA). In this work, we extend...
Efficient certification of intractable quantum states with few Pauli measurements
Sami Abdul Sater, Maxime Garnier, Thierry Martinez +2 more·Nov 10, 2025
Verification of quantum computations is crucial as experiments advance toward fault-tolerant quantum computing. Yet, no efficient protocol exists for certifying states generated in the Magic-State Injection model -- the foundation of several fault-to...
Recent Advances on Nonadiabatic Geometric Quantum Computation
Zheng-Yuan Xue, Cheng-Yun Ding·Nov 10, 2025
The geometric phase stands as a foundational concept in quantum physics, revealing deep connections between geometric structures and quantum dynamical evolution. Unlike dynamical phases, geometric phases exhibit intrinsic resilience to certain types ...
Static and dynamic coherence fraction in the Bernstein-Vazirani algorithm
Si-Qi Zhou, Jin-Min Liang, Jiayin Peng +3 more·Nov 10, 2025
Quantum entanglement and coherence are crucial resources in quantum information theory. In some scenarios, however, it is not necessary to directly estimate entanglement or coherence measures to quantify the capabilities of a state in quantum informa...
Observation of Non-Hermitian Spectral Deformation in Complex Momentum Space
Mu Yang, Yue Li, Mingtao Xu +4 more·Nov 10, 2025
Open systems feature a variety of phenomena that arise from non-Hermitian physics. Recent theoretical studies have offered much insights into these phenomena through the non-Bloch band theory, though many of the theory's key features are experimental...
Quantifying nonclassical correlations relative to local channels
Cong Xu, Tao Li, Ruonan Ren +2 more·Nov 10, 2025
Nonclassical correlations are significant physical resources with extensive applications in quantum information processing. We introduce the modified Wigner-Yanase-Dyson skew information of a quantum state relative to a quantum channel, and a quantit...
Saturating the Quantum Cramér--Rao Bound in Prioritised Parameter Estimation
Simon K. Yung, Aritra Das, Jun Suzuki +4 more·Nov 10, 2025
Measurement incompatibility is a cornerstone of quantum mechanics. In the context of estimating multiple parameters of a quantum system, this manifests as a fundamental trade-off between the precisions with which different parameters can be estimated...
GCAMPS: A Scalable Classical Simulator for Qudit Systems
Ben Harper, Azar C. Nakhl, Thomas Quella +2 more·Nov 10, 2025
Classical simulations of quantum systems are notoriously difficult computational problems, with conventional state vector and tensor network methods restricted to quantum systems that feature only a small number of qudits. The recently introduced Cli...
Quantum algorithm for one quasi-particle excitations in the thermodynamic limit via cluster-additive block-diagonalization
Sumeet, M. Hörmann, K. P. Schmidt·Nov 10, 2025
We propose a quantum algorithm for computing one quasi-particle excitation energies in the thermodynamic limit by combining numerical linked-cluster expansions (NLCEs) and the variational quantum eigensolver (VQE). Our approach uses VQE to block-diag...
Flux-modulated tunable interaction regimes in two strongly nonlinear oscillators
J. D. Koenig, G. Barbieri, F. Fani Sani +3 more·Nov 9, 2025
The ability to efficiently simulate a variety of interacting quantum systems on a single device is an overarching goal for digital and analog quantum simulators. In circuit quantum electrodynamical systems, strongly nonlinear superconducting oscillat...