Quantum Brain

Papers

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

Total Papers

27,881

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1,306

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Research Volume

13,141 papers in 12 months (+1% vs prior quarter)

Research Focus Areas

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

Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

6,169 papers found

Master Equation for a Quantum Gas of Polarizable Particles in Cavities

Tom Schmit, Catalin-Mihai Halati, Tobias Donner +2 more·Aug 11, 2025

Quantum gases of atoms and molecules in optical cavities offer a formidable laboratory for studying the out-of-equilibrium dynamics of open quantum systems with long-range interactions. Long-range interactions are here mediated by multiple scattering...

Quantum Physicscond-mat.quant-gas

Deterministic Integration of CsPbBr3 Quantum Dots with Plasmonic Ring Microcavities

Pengji Li, Chenxi Ma, Jingzhong Yang +8 more·Aug 11, 2025

Perovskite quantum dots hold great promise for quantum information processing as wavelength-tunable single photon sources operable over a broad temperature range. However, their deterministic integration into nanophotonic structures remains a major c...

Physics

Expanding a 4-qubit Dicke state to a 5-qubit Dicke state with limited qubit access

Bibhuti Thapa, Oberon Moran, Duc-Kha Vu +1 more·Aug 11, 2025

Preparing multipartite entangled states under restricted qubit access is a key challenge for modular and distributed quantum architectures. We address this by presenting two complementary circuits. First, we propose a resource-efficient deterministic...

PhysicsComputer Science

Quantum-centric simulation of hydrogen abstraction by sample-based quantum diagonalization and entanglement forging

T. Smith, Tanvi P. Gujarati, Mario Motta +11 more·Aug 11, 2025

The simulation of electronic systems is an anticipated application for quantum-centric computers, i.e. heterogeneous architectures where classical and quantum processing units operate in concert. An important application is the computation of radical...

Physics

Quantum-Classical Hybrid Computation of Electron Transfer in a Cryptochrome Protein via VQE-PDFT and Multiscale Modeling

Yibo Chen, Zirui Sheng, Weitang Li +4 more·Aug 10, 2025

Accurate calculation of strongly correlated electronic systems requires proper treatment of both static and dynamic correlations, which remains challenging for conventional methods. To address this, we present VQE-PDFT,aquantum-classical hybrid frame...

Quantum Physics

Continuous-Time Quantum Markov Chains And Discretizations Of p-Adic Schrödinger Equations: Comparisons And Simulations

W. A. Zúñiga-Galindo, L. F. Chacón-Cortés·Aug 8, 2025

The continuous-time quantum walks (CTQWs) are a fundamental tool in the development of quantum algorithms. Recently, it was shown that discretizations of p-adic Schrödinger equations give rise to continuous-time quantum Markov chains (CTQMCs); this t...

Quantum Physics

Can a Quantum Computer Simulate Nuclear Magnetic Resonance Spectra Better than a Classical One?

Keith R. Fratus, Nicklas Enenkel, Sebastian Zanker +3 more·Aug 8, 2025

The simulation of the spectra measured in nuclear magnetic resonance (NMR) spectroscopy experiments is a computationally non-trivial problem which, due to its natural interpretation as a quantum spin problem, maps in a straightforward way to a quantu...

Quantum Physicsphysics.chem-ph

Scalable Quantum State Preparation for Encoding Genomic Data with Matrix Product States

Floyd M. Creevey, Hitham T. Hassan, James T. McCafferty +2 more·Aug 8, 2025

As quantum computing hardware advances, the need for algorithms that facilitate the loading of classical data into the quantum states of these devices has become increasingly important. This study presents a method for producing scalable quantum circ...

Physics

Enhancing the Scalability of Classical Surrogates for Real-World Quantum Machine Learning Applications

Philip Anton Hernicht, Alona Sakhnenko, Corey O’Meara +2 more·Aug 8, 2025

Quantum machine learning (QML) presents potential for early industrial adoption, yet limited access to quantum hardware remains a significant bottleneck for deployment of QML solutions. This work explores the use of classical surrogates to bypass thi...

PhysicsComputer Science

Classical simulation of noisy quantum circuits via locally entanglement-optimal unravelings

Simon Cichy, Paul K. Faehrmann, Lennart Bittel +2 more·Aug 7, 2025

Classical simulations of noisy quantum circuits are instrumental to our understanding of the behavior of real-world quantum systems and the identification of regimes where one expects quantum advantage. In this work, we present a highly parallelizabl...

Quantum Physics

A quantum turbuloscope: unlocking end-to-end quantum simulation of turbulence

Zhaoyuan Meng, Xiao-Ming Zhang, Xiao Yuan +1 more·Aug 7, 2025

Multiscale organization is a hallmark of complex natural systems, spanning climate dynamics, biological morphogenesis, and fluid turbulence. While quantum computing promises exponential speedups for solving the evolution equations governing these fie...

Quantum Physicsnlin.CDphysics.flu-dyn

Quantum Circuit Benchmarking on IBM Brisbane: Performance Insights from Superconducting Qubit Models

J. Selvam, S. Veni·Aug 7, 2025

This paper investigates quantum communication using superconducting qubits, emphasizing the simulation and control of quantum systems via IBM Brisbane quantum processor. We focus on implementing fundamental quantum gates and analyzing the evolution o...

Physics

MPS-JuliQAOA: User-friendly, Scalable MPS-based Simulation for Quantum Optimization

Sean Feeney, Reuben Tate, John Golden +1 more·Aug 7, 2025

We present the MPS-JuliQAOA simulator, a user-friendly, open-source tool to simulate the Quantum Approximate Optimization Algorithm (QAOA) of any optimization problem that can be expressed as diagonal Hamiltonian. By leveraging Julia-language constru...

PhysicsComputer Science

Role of Plaquette Term in Genuine $2+1$D String Dynamics on Quantum Simulators

Yizhuo Tian, N. Srivatsa, Kaidi Xu +3 more·Aug 7, 2025

With the advent of quantum simulators of $2+1$D lattice gauge theories (LGTs), a fundamental open question is under what circumstances the observed physics is genuinely $2+1$D rather than effectively $1+1$D. Here, we address this question in the ongo...

Physics

Material-Driven Optimization of Transmon Qubits for Scalable and Efficient Quantum Architectures

Jonnalagadda Gayatri, S. Veni·Aug 7, 2025

One of the most crucial steps in creating practical quantum computers is designing scalable and efficient superconducting qubits. Coherence times, connections between individual qubits, and reduction of environmental noise are critical factors in the...

Physics

On the Design of Expressive and Trainable Pulse-based Quantum Machine Learning Models

Han-Xiao Tao, Xin Wang, Re-Bing Wu·Aug 7, 2025

Pulse-based Quantum Machine Learning (QML) has emerged as a novel paradigm in quantum artificial intelligence due to its exceptional hardware efficiency. For practical applications, pulse-based models must be both expressive and trainable. Previous s...

PhysicsComputer Science

Model-based framework for automated quantification of error sources in quantum state tomography

Junpei Oba, Hsin-Pin Lo, Yasuhiro Yamada +6 more·Aug 7, 2025

High-quality quantum state generation is essential for advanced quantum information processing, including quantum communication, quantum sensing, and quantum computing. In practice, various error sources degrade the quality of quantum states, and qua...

Physics

Hybrid Quantum-Classical Machine Learning Potential with Variational Quantum Circuits

S. Y. Willow, David ChangMo Yang, Chang Woo·Aug 6, 2025

Quantum algorithms for simulating large and complex molecular systems are still in their infancy, and surpassing state-of-the-art classical techniques remains an ever-receding goal post. A promising avenue of inquiry in the meanwhile is to seek pract...

PhysicsComputer Science

Noisy Quantum Simulation Using Tracking, Uncomputation and Sampling

Siddharth Dangwal, T. Oberoi, Ajay Sailopal +2 more·Aug 6, 2025

Quantum computers have grown in size and qubit quality in recent years, enabling the execution of complex quantum circuits. However, for most researchers, access to compute time on quantum hardware is limited. This necessitates the need to build simu...

Physics

Simulation and Benchmarking of Real Quantum Hardware

T. Piskor, M. Schondorf, M. Bauer +5 more·Aug 6, 2025

The effects of noise are one of the most important factors to consider when it comes to quantum computing in the noisy intermediate-scale quantum computing (NISQ) era that we are currently in. Therefore, it is important not only to gain more knowledg...

Physics
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