Quantum Brain

Papers

Live trends in quantum computing research, updated daily from arXiv.

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12,910 papers in 12 months (-5% vs prior quarter)

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Papers by research theme (12 months). Hover for details.

Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

2,459 papers found

SMILES-Inspired Transfer Learning for Quantum Operators in Generative Quantum Eigensolver

Zhi Yin, Xiaoran Li, Shengyue Zhang +2 more·Sep 24, 2025

Given the inherent limitations of traditional Variational Quantum Eigensolver(VQE) algorithms, the integration of deep generative models into hybrid quantum-classical frameworks, specifically the Generative Quantum Eigensolver(GQE), represents a prom...

Computer SciencePhysics

Exploiting Non-Markovian Memory Effects for Robust Quantum Teleportation

Safae Gaidi, Nour-Eddine Abouelkhir, Abdallah Slaoui +2 more·Sep 23, 2025

The reliable transmission of quantum information remains a central challenge in the presence of environmental noise. In particular, maintaining high teleportation fidelity in open quantum systems is hindered by decoherence, which disrupts quantum coh...

Quantum PhysicsMathematical Physics

Quantum Annealing for Minimum Bisection Problem: A Machine Learning-based Approach for Penalty Parameter Tuning

Renáta Rusnáková, Martin Chovanec, Juraj Gazda·Sep 23, 2025

The Minimum Bisection Problem is a well-known NP-hard problem in combinatorial optimization, with practical applications in areas such as parallel computing, network design, and machine learning. In this paper, we examine the potential of using D-Wav...

Quantum Physicscs.LG

Intrinsic-perturbation induced anomalous higher-order boundary states in non-Hermitian systems

Hui-Qiang Liang, Zuxuan Ou, Linhu Li +1 more·Sep 23, 2025

The behavior of higher-order boundary states in non-Hermitian systems is elusive and thereby finding the mechanism behind these states is both essential and significant. Here, we uncover a novel mechanism that induces anomalous higher-order boundary ...

Mesoscale PhysicsQuantum Physics

Trading modes against energy

Lukas Brenner, Beatriz Dias, Robert Koenig·Sep 23, 2025

We ask how much energy is required to weakly simulate an $n$-qubit quantum circuit (i.e., produce samples from its output distribution) by a unitary circuit in a hybrid qubit-oscillator model. The latter consists of a certain number of bosonic modes ...

Quantum Physics

Octahedral dynamics and local symmetry in hybrid perovskite FAPbI3 under thermal excitation

H. Joshi, K. C. Bhamu, A. Shankar +2 more·Sep 23, 2025

Density Functional Theory (DFT) and ab initio molecular dynamics (AIMD) simulations have been employed to investigate the evolution of local motifs within the tetragonal phase of FAPbI3 under thermal excitation. Our results reveal a distinct broadeni...

cond-mat.mtrl-sciQuantum Physics

Localization and topological signatures under periodic twisting

James Walkling, Antonio Štrkalj, F. Nur Ünal·Sep 22, 2025

We theoretically explore a dynamical generalization of the Aubry-André model in two dimensions formed by superimposing two square-lattice potentials. Motivated by the rich physics emerging at different twist angles between the two lattices at equilib...

cond-mat.quant-gascond-mat.dis-nnMesoscale PhysicsAtomic Physics

Hybrid Trapping of Cold Atoms with Surface Forces and Blue-Detuned Evanescent Light on a Nanophotonic Waveguide

Riccardo Pennetta, Antoine Glicenstein, Philipp Schneeweiss +2 more·Sep 22, 2025

We demonstrate a novel hybrid nanophotonic trap for cold neutral atoms, leveraging surface forces for attraction and blue-detuned evanescent light for repulsion. We attribute the attractive potential to a combination of Casimir-Polder interactions an...

Quantum PhysicsAtomic Physicsphysics.optics

Digital controllability of transverse field Ising chains

Vincenzo Roberto Arezzo, Ruiyi Wang, Kiran Thengil +2 more·Sep 22, 2025

Quantum Annealing (QA) encounters limitations when the energy gap along the annealing path becomes exponentially small, leading to impractically long runtimes. In contrast, the success of hybrid digital methods like the Quantum Approximate Optimizati...

Quantum Physics

Quantum Adaptive Self-Attention for Financial Rebalancing: An Empirical Study on Automated Market Makers in Decentralized Finance

Chi-Sheng Chen, Aidan Hung-Wen Tsai·Sep 21, 2025

We formulate automated market maker (AMM) \emph{rebalancing} as a binary detection problem and study a hybrid quantum--classical self-attention block, \textbf{Quantum Adaptive Self-Attention (QASA)}. QASA constructs quantum queries/keys/values via va...

Quantum Physicscs.LGq-fin.CP

Quantum Enhanced Anomaly Detection for ADS-B Data using Hybrid Deep Learning

Rani Naaman, Felipe Gohring de Magalhaes, Jean-Yves Ouattara +1 more·Sep 19, 2025

The emerging field of Quantum Machine Learning (QML) has shown promising advantages in accelerating processing speed and effectively handling the high dimensionality associated with complex datasets. Quantum Computing (QC) enables more efficient data...

Quantum Physicscs.LG

Formation of Cavity-Polaritons via High-Order Van Hove Singularities

Igor Gianardi, Michele Pini, Francesco Piazza·Sep 19, 2025

We consider polaritons formed by hybridizing particle-hole excitations of an insulating phase with a cavity photon at sub-gap frequencies, where absorption is suppressed. The strength of the hybridization is driven by the Van Hove singularity in the ...

cond-mat.quant-gasphysics.opticsQuantum Physics

Qubit-oscillator-based gate implementations for approximate Gottesman-Kitaev-Preskill codes

Lukas Brenner, Beatriz Dias, Robert Koenig·Sep 19, 2025

We consider hybrid qubit-oscillator systems together with Gaussian, multi-qubit as well as qubit-controlled Gaussian unitaries. We propose implementations of logical gates for approximate Gottesman-Kitaev-Preskill codes in this model using two oscill...

Quantum Physics

Simultaneous Speedmeter and Position-Meter Response in a Single Tabletop Interferometer

Mikhail Korobko, Xiang Li, Torben Sobottke +3 more·Sep 18, 2025

Quantum radiation-pressure noise (QRPN) limits the low-frequency sensitivity of gravitational wave detectors. The established method for suppressing QRPN is the injection of frequency-dependent squeezed light. It requires long-baseline filter cavitie...

Quantum Physicsastro-ph.IMgr-qcphysics.ins-det

Fermat's Spiral-Based Characterization of Squeezed Nonlinear Motional States of Levitated Nanoparticle

Martin Duchaň, Alexandr Jonáš, Radim Filip +4 more·Sep 18, 2025

Controlling the state of motion of optically levitated nanoparticles is crucial for the advancement of precision sensing, fundamental tests of physics, and the development of hybrid classical-quantum technologies. Experimentally, such control can be ...

physics.opticsQuantum Physics

Spin-photon coupling using circular double quantum dots

Ferdinand Omlor, Florinda Viñas Boström, Martin Leijnse·Sep 18, 2025

We propose and analyze a microwave spin-photon interface based on a circular double quantum dot, inspired by recent experimental observations of anisotropic g-factors and ring states in InAs nanowires. We develop an effective theoretical model captur...

Mesoscale PhysicsQuantum Physics

Hybrid Learning and Optimization methods for solving Capacitated Vehicle Routing Problem

Monit Sharma, Hoong Chuin Lau·Sep 18, 2025

The Capacitated Vehicle Routing Problem (CVRP) is a fundamental NP-hard problem in logistics. Augmented Lagrangian Methods (ALM) for solving CVRP performance depends heavily on well-tuned penalty parameters. In this paper, we propose a hybrid optimiz...

physics.soc-phQuantum Physics

Proposal of cavity quantum acoustodynamics platform based on Lithium Niobate-on-Sapphire chip

Xin-Biao Xu, Lintao Xiao, Bo Zhang +9 more·Sep 18, 2025

A scalable hybrid cavity quantum acoustodynamics (QAD) platform is proposed. The architecture integrates superconducting transmon qubits with phononic integrated circuits on a single chip made by lithium niobate-on-sapphire substrate. The platform su...

Quantum Physics

Strong coupling of a microwave photon to an electron on helium

G. Koolstra, E. O. Glen, N. R. Beysengulov +6 more·Sep 18, 2025

Electrons bound to the surface of superfluid helium have been proposed for scalable charge and spin-based quantum computing. However single electron quantum measurement in this system has remained elusive. Here we use a hybrid circuit quantum electro...

Quantum PhysicsMesoscale Physics

Scaling Hybrid Quantum-HPC Applications with the Quantum Framework

Srikar Chundury, Amir Shehata, Seongmin Kim +6 more·Sep 17, 2025

Hybrid quantum-high performance computing (Q-HPC) workflows are emerging as a key strategy for running quantum applications at scale in current noisy intermediate-scale quantum (NISQ) devices. These workflows must operate seamlessly across diverse si...

Quantum Physicscs.DC
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