Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Detecting genuine multipartite entanglement in multi-qubit devices with restricted measurements
Nicky Kai Hong Li, Xi Dai, Manuel H. Muñoz-Arias +3 more·Apr 29, 2025
Detecting genuine multipartite entanglement (GME) is a state-characterization task that benchmarks coherence and experimental control in quantum systems. Existing GME tests often require joint measurements on many qubits, posing challenges for system...
Optimal Local Simulations of a Quantum Singlet
David Llamas, Dmitry Chistikov, Adrian Kent +2 more·Apr 29, 2025
Bell's seminal work showed that no local hidden variable (LHV) model can fully reproduce the quantum correlations of a two-qubit singlet state. His argument and later developments by Clauser et al. effectively rely on gaps between the anticorrelation...
High-temperature partition functions and classical simulatability of long-range quantum systems
Jorge Sánchez-Segovia, Jan T. Schneider, Álvaro M. Alhambra·Apr 29, 2025
Long-range quantum systems, in which the interactions decay as $1/r^α$, are of increasing interest due to the variety of experimental set-ups in which they naturally appear. Motivated by this, we study fundamental properties of long-range spin system...
Bosonization of Noise Effects in Nonlocal Quantum Dynamics
Michele Fantechi, Marco Merkli·Apr 29, 2025
Quantum systems that interact non-locally with an environment are paradigms for exploring collective phenomena. They naturally emerge in various physical contexts involving long-range, many-body interactions. We consider a general class of such open ...
Hybrid quantum recurrent neural network for remaining useful life prediction
Olga Tsurkan, Aleksandra Konstantinova, Aleksandr Sedykh +5 more·Apr 29, 2025
Predictive maintenance in aerospace heavily relies on accurate estimation of the remaining useful life of jet engines. In this paper, we introduce a Hybrid Quantum Recurrent Neural Network framework, combining Quantum Long Short-Term Memory layers wi...
The Contextual Heisenberg Microscope
Jan-Åke Larsson·Apr 29, 2025
The Heisenberg microscope provides a powerful mental image of the measurement process of quantum mechanics (QM), attempting to explain the uncertainty relation through an uncontrollable back-action from the measurement device. However, Heisenberg's p...
Avoided crossings, degeneracies and Berry phases in the spectrum of quantum noise of driven-dissipative bosonic systems
Giuseppe Patera, Alessandro Pugliese·Apr 29, 2025
Avoided crossings are fundamental phenomena in quantum mechanics and photonics that originate from the interaction between coupled energy levels and have been extensively studied in linear dispersive dynamics. Their manifestation in open, driven-diss...
Iceberg Beyond the Tip: Co-Compilation of a Quantum Error Detection Code and a Quantum Algorithm
Yuwei Jin, Zichang He, Tianyi Hao +5 more·Apr 29, 2025
The rapid progress in quantum hardware is expected to make them viable tools for the study of quantum algorithms in the near term. The timeline to useful algorithmic experimentation can be accelerated by techniques that use many noisy shots to produc...
Q-Fusion: Diffusing Quantum Circuits
Collin Beaudoin, Swaroop Ghosh·Apr 29, 2025
Quantum computing holds great potential for solving socially relevant and computationally complex problems. Furthermore, quantum machine learning (QML) promises to rapidly improve our current machine learning capabilities. However, current noisy inte...
A foundry-fabricated spin qubit unit cell with in-situ dispersive readout
Pierre Hamonic, Mathieu Toubeix, G. Haas +10 more·Apr 29, 2025
Spin qubits based on semiconductor quantum dots are a promising prospect for quantum computation because of their high coherence times and gate fidelities. However, scaling up those structures to the numbers required by fault-tolerant quantum computi...
A Quantum Range-Doppler Algorithm for Synthetic Aperture Radar Image Formation
Alessandro Giovagnoli, S. Huber, Gerhard Krieger·Apr 29, 2025
Synthetic aperture radar (SAR) is a well established technology in the field of Earth remote sensing. Over the years, the resolution of SAR images has been steadily improving and the pixel count increasing as a result of advances in the sensor techno...
Initialization of Neutral and Charged Exciton Spin States in a Telecom-Emitting Quantum Dot
Giora Peniakov, J. Michl, Mohamed Helal +6 more·Apr 29, 2025
Photonic cluster states are highly entangled states that allow for photonic quantum computing and memory-less quantum repeaters. Their generation has been recently demonstrated using semiconductor quantum dots emitting at the 900 nm wavelength range....
Language Model for Large-Text Transmission in Noisy Quantum Communications
Yuqi Li, Zhou Shi, Haitao Ma +3 more·Apr 29, 2025
Quantum communication has the potential to revolutionize information processing, providing unparalleled security and increased capacity compared to its classical counterpart by using the principles of quantum mechanics. However, the presence of noise...
Transversal Gates in Nonadditive Quantum Codes
Chao Zhang, Zipeng Wu, Shilin Huang +1 more·Apr 29, 2025
Transversal gates play a crucial role in suppressing error propagation in fault-tolerant quantum computation, yet they are intrinsically constrained: any nontrivial code encoding a single logical qubit admits only a finite subgroup of $\mathrm{SU}(2)...
Photonic quantum convolutional neural networks with adaptive state injection
Léo Monbroussou, Beatrice Polacchi, Verena Yacoub +14 more·Apr 29, 2025
Abstract. Recent photonic quantum machine learning proposals combined linear optics with adaptivity to enhance expressivity and improve algorithm performance and scalability. The particle-number-preserving property of linear optical platforms was rec...
Variational Quantum Simulation of the Interacting Schwinger Model on a Trapped-Ion Quantum Processor
Christian Melzer, Stephan Schuster, Diego Alberto Olvera Mill'an +4 more·Apr 29, 2025
Simulations in high-energy physics are currently emerging as an application of noisy intermediate-scale quantum (NISQ) computers. In this work, we explore the multi-flavor lattice Schwinger model - a toy model inspired by quantum chromodynamics - in ...
Petz recovery maps of single-qubit decoherence channels in an ion trap quantum processor
Wen-Han Png, Valerio Scarani·Apr 29, 2025
The Petz recovery map provides a near-optimal reversal of quantum noise, yet proposals for its implementation are only recent. We propose a physical realization of the exact state-specific Petz map in an ion trap for qubit decoherence channels. Our c...
CloudQC: A Network-aware Framework for Multi-tenant Distributed Quantum Computing
Ruilin Zhou, Yuhang Gan, Yi Liu +1 more·Apr 29, 2025
Distributed quantum computing (DQC) that allows a large quantum circuit to be executed simultaneously on multiple quantum processing units (QPUs) becomes a promising approach to increase the scalability of quantum computing. It is natural to envision...
Multimode Entangled Squeezed Light Generation and Propagation in a Coupled-Cavity Photonic Crystal
Dylan van Eeden, Marc M. Dignam·Apr 28, 2025
Entangled multi-mode squeezed states of light have a wide variety of applications in quantum information systems, particularly in the generation of non-Gaussian states of light, which are central to continuous-variable quantum computing. Although the...
Fractional Angular Momentum and Quasi-Probability Densities for Angular Degrees of Freedom
Bo-Sture K. Skagerstam, Per K. Rekdal·Apr 28, 2025
In the present update work we consider properly defined two-parameter quasi-probability densities that, e.g., can be used as witness for quantum behaviour for a class of pure states as expressed in terms of a self-adjoint observable angular position ...