Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Neural network approach to mitigating intra-gate crosstalk in superconducting CZ gates
Yiming Yu, Yexiong Zeng, Ye-Hong Chen +2 more·Mar 23, 2026
The potential of quantum computing is fundamentally constrained by the inherent susceptibility of qubits to noise and crosstalk, particularly during multi-qubit gate operations. Existing strategies, such as hardware isolation and dynamical decoupling...
Systematic construction of digital autonomous quantum error correction for state preparation and error suppression via conditional Gaussian operations
Keitaro Anai, Suguru Endo, Shuntaro Takeda +1 more·Mar 23, 2026
In continuous-variable quantum computing, autonomous quantum error correction (QEC) can dissipatively steer a noisy quantum state into a target state or manifold, enabling robust quantum information processing without explicit syndrome measurements a...
Single-Trajectory Gibbs Sampling for Non-Commuting Observables
Hongrui Chen, Jiaqing Jiang, Bowen Li +1 more·Mar 23, 2026
Estimating thermal expectation values of quantum many-body systems is a central challenge in physics, chemistry, and materials science. Standard quantum Gibbs sampling protocols address this task by preparing the Gibbs state from scratch after every ...
Distilling the knowledge with quantum neural networks
Yuxuan Yan, Sitian Qian, Qi Zhao +1 more·Mar 23, 2026
Quantum Neural Networks (QNNs) are a promising class of quantum machine learning models with potential quantum advantages when implemented on scalable, error-corrected quantum computers. However, as system sizes increase, deploying QNNs becomes chall...
Modeling Quantum Federated Autoencoder for Anomaly Detection in IoT Networks
Devashish Chaudhary, Sutharshan Rajasegarar, Shiva Raj Pokhrel·Mar 23, 2026
We propose a Quantum Federated Autoencoder for Anomaly Detection, a framework that leverages quantum federated learning for efficient, secure, and distributed processing in IoT networks. By harnessing quantum autoencoders for high-dimensional feature...
Resonance-Suppression Principle for Prethermalization beyond Periodic Driving
Jian Xian Sim·Mar 23, 2026
Non-equilibrium dynamics of strongly and rapidly driven quantum many-body systems is poorly understood beyond periodic driving, where heating is exponentially slow in the drive frequency (Floquet Prethermalization). In contrast, non-periodic drives w...
High-yield integration design of fixed-frequency superconducting qubit systems using siZZle-CZ gates
Kazuhisa Ogawa, Yutaka Tabuchi, Makoto Negoro·Mar 23, 2026
Fixed-frequency transmon qubits, characterized by simple architectures and long coherence times, are promising platforms for large-scale quantum computing. However, the rapidly increasing frequency collisions, which directly reduce the fabrication yi...
Optimal Compilation of Syndrome Extraction Circuits for General Quantum LDPC Codes
Kai Zhang, Dingchao Gao, Zhaohui Yang +4 more·Mar 23, 2026
Quantum error correcting codes (QECC) are essential for constructing large-scale quantum computers that deliver faithful results. As strong competitors to the conventional surface code, quantum low-density parity-check (qLDPC) codes are emerging rapi...
Enhanced Emission from Boron-Vacancy Center in Rhombohedral Boron Nitride
Nasrin Estaji, Ismaeil Abdolhosseini Sarsari, Gergő Thiering +1 more·Mar 22, 2026
Various stacking combinations of the two-dimensional (2D) boron nitride (BN) honeycomb lattice can significantly modify the properties of the resulting 2D BN crystal. Here, we demonstrate through first-principles calculations that the brightness of t...
Homogenization of point interactions
Domenico Cafiero, Michele Correggi, Davide Fermi·Mar 22, 2026
We consider a non-relativistic quantum particle in $\mathbb{R}^d$, $d=2$ or $d = 3$, interacting with singular zero-range potentials concentrated on a large collection of points. We analyze the homogenization regime where the intensities of the singu...
Heterosymmetric states of rotating quantum droplets under confinement
S. Nikolaou, G. M. Kavoulakis, M. Ogren·Mar 22, 2026
We investigate the rotational response of a confined, two-dimensional quantum droplet, which emerges in an attractive binary Bose mixture that is stabilized against collapse by beyond-mean-field effects. We consider both a harmonic and an anharmonic ...
Quantum Fuzzy Sets Revisited: Density Matrices, Decoherence, and the Q-Matrix Framework
Mirco A. Mannucci·Mar 22, 2026
In 2006 we proposed Quantum Fuzzy Sets, observing that states of a quantum register could serve as characteristic functions of fuzzy subsets, embedding Zadeh's unit interval into the Bloch sphere. That paper was deliberately preliminary. In the two d...
Experimental Quantum State Tomography of Multimode Gaussian States
Chan Roh, Geunhee Gwak, Young-Do Yoon +1 more·Mar 22, 2026
Multimode Gaussian states are a versatile resource for quantum information technologies and have been realized across a wide range of physical platforms. Recent progress in the large-scale generation of such states provides a key ingredient for scala...
Memory-Nonlinearity Trade-off across Quantum Reservoir Computing Frameworks
Saud Čindrak, Lara Giebeler, Niclas Götting +2 more·Mar 22, 2026
Quantum reservoir computing (QRC) harnesses driven quantum dynamics for time-series processing, yet the mechanisms behind the differing performance levels across its many implementations remain unclear. We show that apparently unrelated approaches-in...
Probabilistic theories stable under teleportation
Lionel J. Dmello, David Gross·Mar 22, 2026
A long-standing problem in the foundations of quantum mechanics is to identify a physical principle that explains why algebraically maximal violations of Bell inequalities can generally not be achieved in Nature. One recently proposed approach consid...
Contractions of the relativistic quantum LCT group and the emergence of spacetime symmetries
Anjary Feno Hasina Rasamimanana, Ravo Tokiniaina Ranaivoson, Roland Raboanary +3 more·Mar 22, 2026
Advances in the study of relativistic quantum phase space have established the set of Linear Canonical Transformations (LCTs) as a candidate for the fundamental symmetry group associated with relativistic quantum physics. In this framework, for a spa...
Dynamical symmetries of the Calogero-Coulomb model
Tigran Hakobyan·Mar 22, 2026
We construct the dynamical symmetry of the quantum Calogero model with particle exchange in a confining Coulomb field. This symmetry is governed by the algebra $so(N+1,2)$, deformed by exchange (Dunkl) operators, with its invariant sector generated b...
The Average Relative Entropy and Transpilation Depth determines the noise robustness in Variational Quantum Classifiers
Aakash Ravindra Shinde, Arianne Meijer - van de Griend, Jukka K. Nurminen·Mar 22, 2026
Variational Quantum Algorithms (VQAs) have been extensively researched for applications in Quantum Machine Learning (QML), Optimization, and Molecular simulations. Although designed for Noisy Intermediate-Scale Quantum (NISQ) devices, VQAs are predom...
Precision spectroscopy of a trapped $^{173}$Yb$^+$ ion using a bath of ultracold atoms
Egor Kovlakov, Rene Gerritsma·Mar 22, 2026
We demonstrate precision laser spectroscopy of a trapped $^{173}$Yb$^+$ ion that is not directly laser cooled by coupling it to ultracold atoms. The atomic bath continuously cools the internal degrees of freedom of the ion to its hyperfine ground sta...
A Quantum Encoding of Traveling Salesperson Tours via Route Generation, Cost Phases, and a Valid-Permutation Oracle
Alexander Johannes Stasik, Franz Georg Fuchs·Mar 22, 2026
We present a compact quantum encoding of the Traveling Salesperson Problem (TSP) based on a time-register representation of tours. A candidate route is represented as a sequence of $n$ city labels over discrete time steps, with one fixed start city a...