Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Photonic Violation of Wigner's Inequality
Maximilian Rottensteiner, Dorian Schiffer, Tobias Pausch +2 more·Jun 29, 2026
Teaching quantum mechanics is challenging, not least because the theory often conflicts with our classical worldview. Quantum correlations in particular are notoriously counter-intuitive. Their non-classical behavior is typically revealed through Bel...
Topological control of third-harmonic generation in a mesoscopic quantum ring with spiral dislocation
Carlos Magno O. Pereira, Denise Assafrão, Edilberto O. Silva·Jun 29, 2026
We investigate the nonlinear optical response of a two-dimensional mesoscopic quantum ring subjected to a spiral dislocation, with emphasis on third-harmonic generation (THG). The topological defect is modeled through a torsion-induced deformation of...
Quantum percolation based dynamic propagation connectivity for critical-area identification in transport networks
Junxiang Xu, Chence Niu, Vinayak Dixit +2 more·Jun 29, 2026
Transport networks often lose functionality through gradual degradation in link operating conditions before topological disconnection occurs. Link-centred and binary percolation measures identify important facilities or connectivity failures, but the...
Exact calculation of entanglement negativity for a 1+1D massless scalar field using phase space methods
Jason Pye, Atharva Hingane, Robert H. Jonsson·Jun 29, 2026
Quantum fields exhibit a rich entanglement structure which is still not fully understood. In this work, we study the entanglement structure of the vacuum state of a massless scalar field in (1+1)-dimensions -- a paradigmatic case for both high energy...
Multiparameter Quantum Estimation and Degeneracy Structure in Three-Flavor Neutrino Oscillations
Bhavna Yadav, Amir Subba, Yu Shi·Jun 29, 2026
Achieving precision measurements of neutrino oscillation parameters and resolving parameter degeneracies remain central challenges in neutrino physics. This work presents a systematic investigation of three-flavor neutrino oscillations within the fra...
Quantum percolation theory for dynamic propagation connectivity of transport networks
Junxiang Xu, Chence Niu, Divya Jayakumar Nair +1 more·Jun 29, 2026
Connectivity degradation in transport networks under structural disturbance is a central problem in network resilience research. Existing methods rely mainly on percolation theory and topological connectivity measures. They focus on whether paths exi...
Quadratic Gauge Transformation
Sunita Singh, Akshit Sharma·Jun 29, 2026
Symmetries plays a significant role in understanding the conservation laws in Quantum field theories. Here, we attempted a quadratic type dimensionless gauge transformation to achieve the invariance in QFTs. We have shown the extensive study of invar...
Spin bath mediated long-lived coherent oscillations of NV centers in diamond
Akshat Rana, Pooja Lamba, Basanta Mistri +3 more·Jun 29, 2026
Decoherence is the biggest bottleneck in all quantum technologies. For nitrogen-vacancy (NV) centers in diamond, the loss of coherence is caused by the electron and nuclear spin bath of the diamond lattice. Here, we demonstrate that the spin bath - t...
A Modular Benchmark of Variational Quantum Attack Algorithms for S-DES
Zeguo Wang, Quanfeng Lu, Wentao Yang +3 more·Jun 29, 2026
Variational quantum algorithms (VQAs) have emerged as a promising approach to quantum cryptanalysis on noisy intermediate-scale quantum (NISQ) devices. Although numerous variational attack schemes have been proposed for symmetric cryptosystems, a sys...
Enhanced Magnon Synchronization in Coupled WGM Optomagnonic Resonators with Phase-Dependent Photon Hopping
Le-Ji Xue, Ying-Jian Zhu, Jaspal Singh +4 more·Jun 29, 2026
We investigate quantum synchronization in a coupled cavity optomagnonic system which consists of two spatially separated optical whispering-gallery-mode (WGM) resonators and each resonator is also coupled to a yttrium iron garnet (YIG) sphere through...
Programmable generation of flying cat-qubits
Cecilia Erneman, Zeidan Zeidan, Göran Johansson +1 more·Jun 29, 2026
We propose a framework for the direct generation of flying cat-qubit states from vacuum using time-dependent two-photon drives in nonlinear bosonic systems. We study both Kerr-based and two-photon-dissipation-based generation. By engineering Kerr non...
Cooperative control and geometric amplification in dissipative quantum systems
Robert Weiß, Sandro Wimberger, David Guéry-Odelin·Jun 29, 2026
In the control of dissipative quantum systems, the slow relaxation modes usually set the ultimate manipulation timescale. Here we show that this apparent bottleneck can be bypassed: dissipation itself becomes a control resource when fast relaxation c...
Hall viscosity from metric-sensitive dichroic probes
Alberto Nardin, Bruno Mera, Anaïs Defossez +3 more·Jun 29, 2026
Hall viscosity characterizes the geometric response of a quantum Hall droplet to deformations of the underlying metric, yet it has remained difficult to measure directly. We propose a spectroscopic probe based on circular dichroism, using chiral metr...
Perfect elliptic dichroism: Probing the metric of anisotropic quantum Hall droplets
Bruno Mera, Alberto Nardin, Anaïs Defossez +3 more·Jun 29, 2026
Understanding the geometry of quantum Hall systems is a central challenge in modern condensed matter physics. We introduce a framework for probing the geometric structure of quantum Hall droplets by engineering the geometry of a dichroic probe and id...
Coherent Control of Quantum and Classical Correlations in Photoionization
Axel Stenquist, Jan Marcus Dahlström·Jun 29, 2026
The ability to control quantum correlations in strongly driven systems is a central challenge across quantum science, with implications for ultrafast dynamics, quantum control, and information processing. In photoionization, the emitted electron and ...
Deterministic nonlinear bunching of bosons
Kingshuk Adhikary, Darren W. Moore, Radim Filip·Jun 29, 2026
The ability of bosonic energy quanta to bunch together in an energy-conserving interaction is a fundamental feature of quantum harmonic oscillators. Linear systems together with measurement allow for the conditional concentration of energy quanta and...
Equality Conditions for an Additive Three-Observable Uncertainty Relation
Yao-Yi Zeng, Zhi-Jie Liu, Jie Zhou +1 more·Jun 29, 2026
Uncertainty relations play a fundamental role in quantum mechanics by quantifying the intrinsic limitations on the simultaneous sharpness of incompatible observables. Beyond the standard two-observable product form, additive uncertainty relations for...
Rendering Coherent Scattering via Quantum Collision Models
João S. Ferreira, Spencer S. Topel, Pierre Fromholz +1 more·Jun 29, 2026
Traditional light rendering techniques treat the optical properties of materials as static, yet this assumption breaks down in cases where these properties dynamically evolve in response to incident illumination. We present a novel shading framework ...
Temporal modes of quantum states of light scattered by a two-level system
Yann Bouchereau, Lucas Weitzel, Valerian Thiel +3 more·Jun 29, 2026
Non-Gaussian quantum states of light are of paramount importance to quantum computing. Nevertheless, their deterministic generation is challenging problem due to the difficulty to control nonlinearities in physical systems. In this work, we character...
RiverONE: Generating Knowledge-Intensive VLM by Simulated Quantum Machines
Xindian Ma, Xinyu Long, Yefei Zhang +11 more·Jun 29, 2026
Quantum computing provides a powerful paradigm for representing and transforming high-dimensional information through superposition, entanglement, and measurement-induced nonlinear features. While current quantum hardware is not yet practical for dir...