Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Stationary entanglement of a levitated oscillator with an optical field
Q. Deplano, A. Pontin, F. Marino +1 more·Feb 3, 2026
Stationary entanglement between the motion of macroscopic objects and light is a long-standing goal of quantum optomechanics, with implications for both fundamental tests of quantum physics and emerging quantum technologies. We report the generation ...
Enhancing Quantum Diffusion Models for Complex Image Generation
Jeongbin Jo, Santanam Wishal, Shah Md Khalil Ullah +2 more·Feb 3, 2026
Quantum generative models offer a novel approach to exploring high-dimensional Hilbert spaces but face significant challenges in scalability and expressibility when applied to multi-modal distributions. In this study, we explore a Hybrid Quantum-Clas...
Compiling Quantum Regular Language States
Armando Bellante, Reinis Irmejs, Marta Florido-Llinàs +4 more·Feb 2, 2026
State preparation compilers for quantum computers typically sit at two extremes: general-purpose routines that treat the target as an opaque amplitude vector, and bespoke constructions for a handful of well-known state families. We ask whether a comp...
Electro-optic conversion of itinerant Fock states
Thomas Werner, Erfan Riyazi, Samarth Hawaldar +10 more·Jan 31, 2026
Superconducting qubits are a leading candidate for utility-scale quantum computing due to their fast gate speeds and steadily decreasing error rates. The requirement for millikelvin operating temperatures, however, creates a significant scaling bottl...
Asymmetry and dynamical criticality
Andesson B. Nascimento, Lucas Chibebe Céleri·Jan 31, 2026
Symmetries play a central role in both equilibrium and nonequilibrium phase transitions, yet their quantitative characterization in dynamical quantum phase transitions (DQPTs) remains an open challenge. In this work, we establish a direct connection ...
Fundamental Limits of Large Momentum Transfer in Optical Lattices
Ashkan Alibabaei, Patrik Mönkeberg, Florian Fitzek +4 more·Jan 30, 2026
Large-momentum-transfer techniques are instrumental for the next generation of atom interferometers as they significantly improve their sensitivity. State-of-the-art implementations rely on elastic scattering processes from optical lattices such as B...
Spontaneous four-wave mixing in a thin layer with second-order nonlinearity
Changjin Son, Maria Chekhova·Jan 30, 2026
Pairs of entangled photons are crucial for photonic quantum technologies. The demand for integrability and multi-functionality suggests 'flat' platforms - ultrathin layers and metasurfaces - as sources of photon pairs. With the success in demonstrati...
Bound-state-free Förster resonant shielding of strongly dipolar ultracold molecules
Reuben R. W. Wang·Jan 29, 2026
We propose a method to suppress collisional loss in strongly dipolar, rotationally excited ultracold molecules using a combination of static (dc) and microwave (ac) electric fields. By tuning two excited pair molecular rotational states into a Förste...
Topological Acoustic Diode
Ashwat Jain, Wojciech J. Jankowski, M. Mehraeen +1 more·Jan 28, 2026
We show that certain three-dimensional topological phases can act as acoustic diodes realizing nonlinear odd acoustoelastic effects. Beyond uncovering topologically-induced anomalous acoustic second-harmonic generation and rectification, we demonstra...
Inter-branch message transfer on superconducting quantum processors: a multi-architecture benchmark
Cameron V. Cogburn·Jan 27, 2026
We treat inter-branch message transfer in a Wigner's-friend circuit as a practical benchmark for near-term superconducting quantum processors. Implementing Violaris' unitary message-transfer primitive, we compare performance across IBM Eagle, Nightha...
A two-mode model for black hole evaporation and information flow
Erfan Bayenat, Babak Vakili·Jan 27, 2026
We develop and analyze a two-oscillator model for black hole evaporation in which an effective geometric degree of freedom and a representative Hawking radiation mode are described by coupled harmonic oscillators with opposite signs in their free Ham...
Remote magnon-phonon entanglement in the waveguide-magnomechanics
Shi-fan Qi, Fan Li·Jan 27, 2026
Generating long-distance quantum entanglement is crucial for advancing quantum information processing. In this work, we propose a protocol for generating remote magnon-phonon entanglement in a hybrid waveguide-magnomechanical system, where multiple s...
Continuous-mode analysis of improved two-way CV-QKD
Yanhao Sun, Jiayu Ma, Xiangyu Wang +3 more·Jan 27, 2026
Continuous-variable quantum key distribution (CV-QKD) enables information-theoretically secure key generation between legitimate parties. To further enhance system performance, an improved two-way CV-QKD protocol has been proposed, which is accessibl...
Graphene Josephson Junctions for Engineering Motional Quanta
Zhen-Yang Peng, Mehdi Abdi·Jan 27, 2026
We propose a hybrid quantum device based on the graphene Josephson junctions, where the vibrational degrees of freedom of a graphene membrane couple to the superconducting circuits. The flexural mode-controlled tunneling of the Cooper pairs introduce...
C2NP: A Benchmark for Learning Scale-Dependent Geometric Invariances in 3D Materials Generation
Can Polat, Erchin Serpedin, Mustafa Kurban +1 more·Jan 27, 2026
Generative models for materials have achieved strong performance on periodic bulk crystals, yet their ability to generalize across scale transitions to finite nanostructures remains largely untested. We introduce Crystal-to-Nanoparticle (C2NP), a sys...
Coherent control of photon pairs via quantum interference between second- and third-order quantum nonlinear processes
Alessia Stefano, Samuel E. Fontaine, J. E. Sipe +1 more·Jan 26, 2026
Genuine quantum interference between independent nonlinear processes of different order provides a route to coherent control that cannot be reduced to a classical field interference. Here we present an all-optical analogue of coherent carrier injecti...
Quantum Key Distribution with a Negatively Charged Quantum Dot Single-Photon Source
Parvendra Kumar·Jan 26, 2026
Various quantum key distribution (QKD) protocols require bright single-photon sources with a very low probability of multiphoton emission. In this work, we investigate single-photon generation from a negatively charged quantum dot embedded in an elli...
Physics-Informed Hybrid Quantum-Classical Dispatching for Large-Scale Renewable Power Systems:A Noise-Resilient Framework
Fu Zhang, Yuming Zhao·Jan 26, 2026
The integration of high-penetration renewable energy introduces significant stochasticity and non-convexity into power system dispatching, challenging the computational limits of classical optimization. While Variational Quantum Algorithms (VQAs) on ...
An Adaptive Purification Controller for Quantum Networks: Dynamic Protocol Selection and Multipartite Distillation
Pranav Kulkarni, Leo Sünkel, Michael Kölle·Jan 26, 2026
Efficient entanglement distribution is a cornerstone of the Quantum Internet. However, physical link parameters such as photon loss, memory coherence time, and gate error rates fluctuate dynamically, rendering static purification strategies suboptima...
Scalable Repeater Architecture for Long-Range Quantum Energy Teleportation in Gapped Systems
M. Y. Abd-Rabbou, Irfan Siddique, Saeed Haddadi +1 more·Jan 26, 2026
Quantum Energy Teleportation (QET) constitutes a paradigm-shifting protocol that permits the activation of local vacuum energy through the consumption of pre-existing entanglement and classical communication. Nevertheless, the implementation of QET i...