Quantum Brain

Papers

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

Total Papers

27,548

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1,041

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Research Volume

12,911 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

Pareto-optimality of Majoranas in hybrid platforms

Juan Daniel, Torres Luna, Sebastian Miles +5 more·Oct 8, 2025

To observe Majorana bound states, and especially to use them as a qubit, requires careful optimization of competing quality metrics. We systematically compare Majorana quality in proximitized semiconductor nanowires and quantum dot chains. Using mult...

Physics

Recent quantum runtime (dis)advantages

J. Tuziemski, J. Pawłowski, P. Tarasiuk +2 more·Oct 7, 2025

A robust definition of quantum runtime is essential for assessing the performance of quantum algorithms and claims of quantum advantage. While for most classical hardware the total runtime is well approximated by computation plus a weakly varying con...

Quantum Physics

Quantum Approximate Optimization Algorithm for MIMO with Quantized b-bit Beamforming

Nikos A Mitsiou, Ioannis Krikidis, George K Karagiannidis·Oct 7, 2025

Multiple-input multiple-output (MIMO) is critical for 6G communication, offering improved spectral efficiency and reliability. However, conventional fully digital designs face significant challenges due to high hardware complexity and power consumpti...

Emerging Techcs.ITQuantum Physics

Quantum Annealing for Realistic Traffic Flow Optimization: Clustering and Data-Driven QUBO

Renáta Rusnáková, Martin Chovanec, Juraj Gazda·Oct 7, 2025

Managing city traffic is a complex NP-hard problem where traditional methods often fail to scale. We present a data-driven approach that reformulates traffic optimization as a Quadratic Unconstrained Binary Optimization, capturing both congestion red...

Quantum Physics

Hybrid Quantum-Classical Policy Gradient for Adaptive Control of Cyber-Physical Systems: A Comparative Study of VQC vs. MLP

Aueaphum Aueawatthanaphisut, Nyi Wunna Tun·Oct 7, 2025

The comparative evaluation between classical and quantum reinforcement learning (QRL) paradigms was conducted to investigate their convergence behavior, robustness under observational noise, and computational efficiency in a benchmark control environ...

Quantum PhysicsAIcs.LGcs.RO

Hybrid quantum-classical analog simulation of two-dimensional Fermi-Hubbard models with neutral atoms

Sergi Julià-Farré, Antoine Michel, Christophe Domain +11 more·Oct 7, 2025

We experimentally study the two-dimensional Fermi-Hubbard model using a Rydberg-based quantum processing unit in the analog mode. Our approach avoids encoding directly the original fermions into qubits and instead relies on reformulating the original...

Quantum Physicscond-mat.quant-gascond-mat.str-el

Hybrid Sequential Quantum Computing

Pranav Chandarana, Sebastián V. Romero, Alejandro Gomez Cadavid +3 more·Oct 7, 2025

We introduce hybrid sequential quantum computing (HSQC), a paradigm for combinatorial optimization that systematically integrates classical and quantum methods within a structured, stage-wise workflow. HSQC may involve an arbitrary sequence of classi...

Quantum Physics

Quantum interference between autonomous dissimilar quantum light sources for hybrid quantum networks

Kyu-Young Kim, Heewoo Kim, Dong Hyun Park +6 more·Oct 7, 2025

Hybrid quantum systems play a crucial role in advancing scalable and versatile quantum networks as they combine the strengths of different quantum platforms. An important challenge for the development of hybrid quantum networks lies in interfacing he...

Quantum Physics

Full counting statistics of electron-photon hybrid systems: Joint statistics and fluctuation symmetry

Tianyi Xiao, Junjie Liu·Oct 7, 2025

Electron-photon hybrid systems serve as ideal light-matter interfaces with broad applications in quantum technologies. These systems are typically operated dynamically under nonequilibrium conditions, giving rise to coupled electronic and photonic cu...

cond-mat.stat-mechMesoscale PhysicsQuantum Physics

A Hybrid Quantum-AI Framework for Protein Structure Prediction on NISQ Devices

Yuqi Zhang, Yuxin Yang, Feixiong Chen +7 more·Oct 7, 2025

Variational quantum algorithms provide a direct, physics-based approach to protein structure prediction, but their accuracy is limited by the coarse resolution of the energy landscapes generated on current noisy devices. We propose a hybrid framework...

Computer Science

Correcting quantum errors using a classical code and one additional qubit

Tenzan Araki, Joseph F. Goodwin, Zhenyu Cai·Oct 6, 2025

Classical error-correcting codes are powerful but incompatible with quantum noise, which includes both bit-flips and phase-flips. We introduce Hadamard-based Virtual Error Correction (H-VEC), a protocol that empowers any classical bit-flip code to co...

Quantum Physics

Leveraging Analog Neutral Atom Quantum Computers for Diversified Pricing in Hybrid Column Generation Frameworks

Cédrick Perron, Yves Bérubé-Lauzière, Victor Drouin-Touchette·Oct 6, 2025

In this work, we develop new pulse designs and embedding strategies to improve the analog quantum subroutines of hybrid column generation (CG) algorithms based on neutral-atoms quantum computers (NAQCs). These strategies are designed to improve the q...

Quantum Physics

Quantum Reservoir Computing for Credit Card Default Prediction on a Neutral Atom Platform

Giacomo Vitali, Chiara Vercellino, Paolo Viviani +9 more·Oct 6, 2025

In this paper, we define and benchmark a hybrid quantum-classical machine learning pipeline by performing a binary classification task applied to a real-world financial use case. Specifically, we implement a Quantum Reservoir Computing (QRC) layer wi...

Quantum Physics

Enhancing Optomechanical Entanglement and Mechanical Squeezing by the Synergistic Effect of Quadratic Optomechanical Coupling and Coherent Feedback

Ya-Feng Jiao, Ruo-Chen Wang, Jing-Xue Liu +5 more·Oct 6, 2025

Quantum entanglement and squeezing associated with the motions of massive mechanical oscillators play an essential role in both fundamental science and emerging quantum technologies, yet realizing such macroscopic nonclassical states remains a formid...

Quantum Physics

Quantum Emission in Monolayer WSe2 Transferred onto InP Nanowires

Palwinder Singh, Jasleen Kaur Jagde, Megha Jain +10 more·Oct 5, 2025

Localized quantum emitters in transition-metal dichalcogenides (TMDs) have recently emerged as solid-state candidates for on-demand sources of single photons. Due to the role of strain in the site-selective creation of TMD emitters, their hybrid inte...

physics.opticscond-mat.mtrl-sciQuantum Physics

Accelerating Extended Benders Decomposition with Quantum-Classical Hybrid Solver

Takuma Yoshihara, Masayuki Ohzeki·Oct 4, 2025

We propose a quantum-classical hybrid method for solving large-scale mixed-integer quadratic problems (MIQP). Although extended Benders decomposition is effective for MIQP, its master problem which handles the integer and quadratic variables often be...

Quantum Physics

Rethinking Services in the Quantum Age: The SOQ Paradigm

J. García-Alonso, E. Moguel, J. Alvarado-Valiente +11 more·Oct 4, 2025

Quantum computing is rapidly progressing from theoretical promise to practical implementation, offering significant computational advantages for tasks in optimization, simulation, cryptography, and machine learning. However, its integration into real...

Computer Science

Single-Spin Nitrogen-Vacancy Magnetometer with Enhanced Static Field Sensitivity

Vinaya K. Kavatamane, Dewen Duan, Hadi Zadeh-Haghighi +2 more·Oct 3, 2025

Precision sensing and imaging of weak static magnetic fields are crucial for a variety of emerging nanoscale applications. While nitrogen-vacancy (NV) centers in diamond provide exceptional AC magnetic field sensitivity with nanoscale spatial resolut...

Quantum Physics

MAQCY: Modular Atom-Array Quantum Computing with Space-Time Hybrid Multiplexing

Andrew Byun, Chanseul Lee, Eunsik Yoon +2 more·Oct 3, 2025

We present a modular atom-array quantum computing architecture with space-time hybrid multiplexing (MAQCY), a dynamic optical tweezer-based protocol for fully connected and scalable universal quantum computation. By extending the concept of globally ...

Quantum Physics

Dynamics of Quantum Entanglement Between Photon and Phonon Modes in a Coulomb-coupled Optomechanical Cavity Magnonic Systems

Muhib Ullah, Muhammad Idrees, Said Mikki·Oct 3, 2025

Quantum entanglement is a fundamental phenomenon in quantum information science and a crucial resource for quantum technologies such as precision sensing, secure communication, and computation. In hybrid cavity magno-optomechanical systems, entanglem...

Quantum Physicscond-mat.other
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