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
From Liouville equation to universal quantum control: A study of generating ultra highly squeezed statesWe find that the seemingly disparate control approaches for classical and quantum continuous-variable systems can be unified via differential manifolds of the ancillary representations. For classical…Zhu-yao Jin, J. Q. You, Jun Jing·Jul 24, 2026SaveLearn
Mapping g-factors and complex intervalley coupling in Si/SiGe by conveyor-mode shuttlingAs silicon spin qubit chips are increasing in qubit number and area, methods for the screening of qubit related material parameters become vital. Here we demonstrate the two-dimensional mapping of…Mats Volmer, Tom Struck, Arnau Sala et al.·Jul 24, 2026SaveLearn
Heisenberg scaling in optical magnetometry with measurement-induced correlations as a quantum resourceTheoretical proposals to reach the Heisenberg scaling of the measurement precision typically require carefully engineered interactions or initial entanglement. In studying optical magnetometry, we…Georg Engelhardt, Ming Li, Xingchang Wang et al.·Jul 24, 2026SaveLearn
Liquid metal printing for superconducting circuitsSuperconducting circuits are a promising platform for implementing fault-tolerant quantum computers, quantum limited amplifiers, ultra-low power superconducting electronics, and sensors with ultimate…Alexander Kreiner, Navid Hussain, Ritika Dhundhwal et al.·Jul 24, 2026SaveLearn
Witnessing genuine multipartite entanglement in phase space with controlled Gaussian unitariesMany existing genuine multipartite entanglement (GME) witnesses for continuous-variable (CV) quantum systems typically rely on quadrature measurements, which are challenging to implement in platforms…Lin Htoo Zaw, Jiajie Guo, Qiongyi He et al.·Jul 24, 2026SaveLearn
Sufficient Wigner Negativity Implies Genuine Multipartite EntanglementWigner negativity and genuine multipartite entanglement (GME) are key nonclassical resources that enable computational advantages and broader quantum-information tasks. In this work, we prove two…Lin Htoo Zaw, Jiajie Guo, Qiongyi He et al.·Jul 24, 2026SaveLearn
Apparent Universal Behavior in Second Moments of Random Quantum CircuitsJust how fast does the brickwork circuit form an approximate 2-design? Is there any difference between anticoncentration and being a 2-design? Does geometry matter? How deep a circuit will I need in…Daniel Belkin, James Allen, Bryan K. Clark·Jul 24, 2026SaveLearn
Universal initial state preparation for first quantized quantum simulationsPreparing symmetry-adapted initial states is a principal bottleneck in first-quantized quantum simulation. We present a universal approach that efficiently maps any polynomial-size superposition of…Jack S. Baker, Gaurav Saxena, Thi Ha Kyaw·Jul 24, 2026SaveLearn
Benchmarking Quantum Simulation of Chemical Hamiltonians using the Sorted-List EncodingQuantum Phase Estimation (QPE) is a cornerstone algorithm for fault-tolerant quantum computation, especially for electronic structure calculations of chemical systems. Optimal simulation relies on a…Calvin Ku, Yu-Cheng Chen, Alice Hu et al.·Jul 24, 2026SaveLearn
Entanglement swapping in high dimensions with only linear opticsEntanglement swapping is a fundamental building block for realizing first-generation quantum repeaters, which are essential for building global quantum networks. Current quantum repeater systems…Baghdasar Baghdasaryan, Kaushik Joarder, Fabian Steinlechner·Jul 24, 2026SaveLearn
Bridging Theory and Practice in Quantum Game Theory: Optimized Implementation of the Battle of the Sexes with Error Mitigation on NISQ HardwareImplementing quantum game theory on real hardware is challenging due to noise, decoherence, and limited qubit connectivity, yet such demonstrations are essential to validate theoretical predictions.…Germán Díaz Agreda, Carlos Andres Duran Paredes, Mateo Buenaventura Samboni et al.·Jul 24, 2026SaveLearn