Maximal Fisher Budget Forces Blind Directions in Bipartite Collective SU(d) MetrologyFor pure two-qudit probes used in a single fixed setting to estimate a common SU(d) transformation, maximal total Fisher sensitivity and full local identifiability are mutually exclusive. We derive…Tariq Aziz, Naeem Akhtar, Dong Wang et al.·Jul 24, 2026SaveLearn
Molecular chiral discrimination through symmetry-breaking spin dynamicsMolecular chirality plays a crucial role in physics, chemistry, life sciences and pharmacology. Nowadays, the chiral discrimination and control at the single-molecule level is urgently needed to…Tianyu Xie, Yucheng Hao, Mingzhe Liu et al.·Jul 24, 2026SaveLearn
Mitigating Capacitive Loading Enables Fast Two-Qubit Gates in Highly Connected Fluxonium Quantum ProcessorsFluxonium qubits combine long coherence times with strong anharmonicity, making them attractive for scalable superconducting quantum processors. Recent experiments have demonstrated high-fidelity…Quan Guan, Guo Xuan Chan, Xu Dou et al.·Jul 24, 2026SaveLearn
Weak Permanent Anti-Concentration for Random Gaussian Matrices in Boson SamplingRecent demonstrations of quantum computational advantage have been driven largely by sampling problems. A prominent model, boson sampling, involves sampling from the output distribution of a linear…Fei Meng, Bin Cheng, Jianan Li et al.·Jul 24, 2026SaveLearn
Optical time travel: proposal for testing Hawking's Chronology Protection Conjecture in an optical analogueClassical general relativity allows time travel, but Hawking [Phys. Rev. D 46, 603 (1992)] conjectured that quantum mechanics ultimately prevents it. Here we propose a feasible experiment to test…D. Bermudez, U. Leonhardt·Jul 24, 2026SaveLearn
Norm of resonance states in quantum scattering and electromagnetic systemsResonance states spatially diverge and are thus not square integrable. Instead, their norm is defined by the biorthogonal scalar product of left and right states. We replace the corresponding volume…Florian Lorenz, Jan Möseritz-Schmidt, Roland Ketzmerick·Jul 24, 2026SaveLearn
QC-PHAST Search: Classical--Quantum Query Benchmarks for Finite-Pool Rare-Regime DiscoveryRare-regime discovery in parameterized dynamical systems is an active-search problem: find one verified parameter at which a scientifically defined qualitative threshold is crossed, even when…Harsh Milind Tirhekar, Chandrajit Bajaj·Jul 24, 2026SaveLearn
Proposal for Estimating the Energy Gap of the Transverse-Field Ising Hamiltonian Using a D-Wave Quantum AnnealerThe transverse-field Ising model is a fundamental quantum spin system that captures the competition between quantum fluctuations and interactions, playing a central role in studies of quantum phase…Kota Yamada, Yuichiro Matsuzaki·Jul 24, 2026SaveLearn
Quantum multi-label k-nearest neighborAlthough multi-label k-nearest neighbor (ML-kNN) is able to effectively solve multi-label learning (MLL) problem with local neighborhood similarity, its time complexity is nearly unacceptable with…Yilin Shen, Qin Liao·Jul 24, 2026SaveLearn
Entanglement purification for arbitrary multipartite high-dimensional Greenberger-Horne-Zeilinger stateHigh-dimensional qudit (i.e., d-level or d-state) systems outperform two-dimensional qubit (i.e., 2-level or 2-state) systems in some quantum information processing tasks. We exploit entanglement…Yu-Qing Kong, Jia-Ye Liu, Hui-Hui Kong et al.·Jul 24, 2026SaveLearn
Quantum advantage of nonlinear quantum battery and superconducting circuit implementationA quantum battery is a novel energy storage device that operates on the principles of quantum mechanics. To enhance the charging performance of quantum batteries and further provide theoretical…Wei-Jun Han, Peng-Yu Sun, Guo-Feng Zhang·Jul 24, 2026SaveLearn
Directional telecom photons from a chirally coupled quantum dotChiral quantum light-matter interfaces, where the internal spin state of a quantum emitter determines the direction in which it emits, are essential building blocks of non-reciprocal quantum devices,…Kristina Bodiroga, Jacob Ewaniuk, Andrew N. Wakileh et al.·Jul 24, 2026SaveLearn
Calculus of Robinet: completely positive reconstruction of time-averaged diffusive quantum trajectoriesTruly continuous quantum trajectories, obtained from homodyne or heterodyne readouts, can only ever be reconstructed approximately. The continuous measurement signal, needed for exact reconstruction,…Hector Hutin, Antoine Tilloy·Jul 24, 2026SaveLearn
Entanglement geometry separates circuit cutting, classical hardness, and trainabilityCircuit cutting promises to scale quantum computations beyond current hardware, but variational quantum advantage also requires low cutting overhead, classical hardness, and trainability. We show…Maria Gragera Garces, Sabina Drăgoi, Lirandë Pira·Jul 24, 2026SaveLearn
Geometry-Resolved Projection of RF Imbalance to Ion Micromotion in a Same-Phase Dual-RF Blade TrapCommon-mode metrics of a high-Q helical resonator do not determine the residual ion-side field in a dual-electrode drive. We combine a two-node differential RF model with single-electrode…Chun-Yang Luan, Haiyu Ding, Cheng-Kang Pan et al.·Jul 24, 2026SaveLearn
Boundary-Phase Control of Sequentially Addressed Trapped-Ion ZZ InteractionsMotion-mediated trapped-ion interactions commonly coordinate state-dependent forces on both target ions. Sequential optical access reduces the number of concurrent target channels but makes the…Chun-Yang Luan, Haiyu Ding, Cheng-Kang Pan et al.·Jul 24, 2026SaveLearn
The verifier side of speculative window decoding: a predictability bracket, a machine-checked blast-radius bound, and a decoder-agnostic recover loopSpeculative window decoders hide quantum error-correction decoder latency by guessing the cross-boundary decisions that link adjacent decoding windows, running downstream work on the guess, and…Rylan Malarchick·Jul 24, 2026SaveLearn
Resolvent algebras and limit states of interacting canonical ensemblesThe limit states of canonical ensembles of a large number of interacting bosons at a given temperature, which are confined by harmonic forces, are studied in the framework of the resolvent algebra.…Detlev Buchholz·Jul 24, 2026SaveLearn
Quantum and Classical Potts Criticality in Driven-Dissipative Bosonic LatticesThe emergence of equilibrium universality from intrinsically nonequilibrium dynamics is a fundamental open problem. Bose-Hubbard lattices realized in photonic and circuit-QED platforms provide a…Jacopo Tosca, Zejian Li, Cristiano Ciuti·Jul 24, 2026SaveLearn
Kerr-induced nonreciprocal transparency and group delay in a hybrid cavity magnomechanical systemWe propose a scheme for realizing nonreciprocal transparency, Fano resonances, and slow/fast light in a hybrid cavity magnomechanical system containing two YIG spheres and a mechanical resonator. The…M. Amghar, N. Chabar, M. Amazioug et al.·Jul 24, 2026SaveLearn
Claim against Measurement: Statistical Artefacts in Quantum Error Mitigation BenchmarksQEM is widely regarded as a plausible bridge from NISQ devices to FTQC. Yet the empirical studies used to assess the effectiveness of QEM techniques on concrete problems have received comparatively…Dominik Köster, Wolfgang Mauerer·Jul 24, 2026SaveLearn
Parameterized Quantum Circuits as Feature Maps: Representation Quality and Readout Effects in Multispectral Land-Cover ClassificationWe investigate variational quantum classifiers (VQCs) for land-cover classification from multispectral satellite imagery, adopting a feature-map perspective in which the quantum circuit defines a…Ralntion Komini, Aikaterini Mandilara, Georgios Maragkopoulos et al.·Jul 24, 2026SaveLearn
Robustness Evaluation of Hybrid Quantum Neural Networks under Noise Models via System-Level Error MitigationQuantum Neural Networks (QNNs) represent a promising direction within Quantum Machine Learning (QML), yet their realization on noisy intermediate-scale quantum (NISQ) devices remains constrained by…Jesse Roberta Mingue Njiki, Nouhaila Innan, Alberto Marchisio et al.·Jul 24, 2026SaveLearn
The Impact of Qubit Connectivity on Quantum Advantage in Noisy IQP CircuitsInstantaneous Quantum Polynomial-time (IQP) circuits are a candidate for demonstrating near-term quantum advantage, as their sampling task is believed to be classically hard in the ideal theoretical…Leonardo Placidi, Enrico Rinaldi, Keisuke Fujii et al.·Jul 24, 2026SaveLearn
Postquantum steering in scenarios with multiple characterised partiesThe study of stronger-than-quantum phenomena (i.e., postquantum) has enabled a deeper understanding of the scope of quantum theory. Much is known about the case of correlations in Bell scenarios,…Ana Belen Sainz·Jul 24, 2026SaveLearn