Quantum Brain

Papers

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

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12,932 papers in 12 months (-5% vs prior quarter)

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Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

2,459 papers found

A hybrid quantum network linking telecom-wavelength atomic and solid-state nodes

Yuzhou Chai, Dahlia Ghoshal, Nayana P. Tiwari +4 more·Feb 2, 2026

Photonic links between disparate quantum technologies$-$such as photon sources, memories, processors, clocks, and sensors$-$are key to scaling quantum networks and realizing a versatile quantum internet for secure quantum communication, distributed q...

Quantum Physics

Guaranteeing Privacy in Hybrid Quantum Learning through Theoretical Mechanisms

Hoang M. Ngo, Tre' R. Jeter, Incheol Shin +3 more·Feb 2, 2026

Quantum Machine Learning (QML) is becoming increasingly prevalent due to its potential to enhance classical machine learning (ML) tasks, such as classification. Although quantum noise is often viewed as a major challenge in quantum computing, it also...

Quantum PhysicsCryptography

Energy-Transfer-Enhanced Emission and Quantum Sensing of VB- Defects in hBN-PbI2 Heterostructures

Eveline Mayner, Yaroslav Zhumagulov, Cristian de Giorgio +6 more·Feb 2, 2026

Spin defects in two-dimensional materials hold significant potential for quantum information technologies and sensing applications. The negatively charged boron vacancy (VB-) in hexagonal boron nitride (hBN) has attracted considerable attention as a ...

cond-mat.mtrl-sciphysics.opticsQuantum Physics

Methods for non-variational heuristic quantum optimisation

Stuart Ferguson, Petros Wallden·Feb 1, 2026

Optimisation plays a central role in a wide range of scientific and industrial applications, and quantum computing has been widely proposed as a means to achieve computational advantages in this domain. To date, research into the design of noise-resi...

Quantum Physicsphysics.comp-ph

First-Principles Optical Descriptors and Hybrid Classical-Quantum Classification of Er-Doped CaF$_2$

David Angel Alba Bonilla, Kerem Yurtseven, Krishan Sharma +4 more·Jan 31, 2026

We present a physics-informed classical-quantum machine learning framework for discriminating pristine CaF$_2$ from Er-doped CaF$_2$ using first-principles optical descriptors. Finite Ca$_8$F$_{16}$ and Ca$_7$ErF$_{16}$ clusters were constructed from...

Quantum Physics

Quantum Phase Recognition via Quantum Attention Mechanism

Jin-Long Chen, Xin Li, Zhang-Qi Yin·Jan 31, 2026

Quantum phase transitions in many-body systems are fundamentally characterized by complex correlation structures, which pose computational challenges for conventional methods in large systems. To address this, we propose a hybrid quantum-classical at...

Quantum PhysicsAIcs.LG

A Conceptual Hybrid Framework for Post-Quantum Security: Integrating BB84 QKD, AES, and Bio-inspired Mechanisms

Md. Ismiel Hossen Abir·Jan 31, 2026

Quantum computing is a significant risk to classical cryptographic, especially RSA, which depends on the difficulty of factoring large numbers. Classical factorization methods, such as Trial Division and Pollard's Rho, are inefficient for large keys,...

Computer Science

Quantum Generator Kernels

Philipp Altmann, Maximilian Mansky, Maximilian Zorn +2 more·Jan 30, 2026

Quantum kernel methods offer significant theoretical benefits by rendering classically inseparable features separable in quantum space. Yet, the practical application of Quantum Machine Learning (QML), currently constrained by the limitations of Nois...

cs.LGQuantum Physics

A room-temperature cavity-magnonic source of correlated microwave pairs

Qiuyuan Wang, Aravind Karthigeyan, Chung-Tao Chou +1 more·Jan 30, 2026

Correlated microwave photon sources are key enablers for technologies in quantum-limited sensing, signal amplification and communication, but the reliance on millikelvin operating temperature limits their scalability for broader applications. Here, a...

Quantum Physicscond-mat.mtrl-sci

Towards Sample Efficient Entanglement Classification for 3 and 4 Qubit Systems: A Tailored CNN-BiLSTM Approach

Qian Sun, Yuedong Sun, Yu Hu +3 more·Jan 30, 2026

Accurate classification of multipartite entanglement in high-dimensional quantum systems is crucial for advancing quantum communication and information processing. However, conventional methods are resource-intensive, and even many machine-learning-b...

Quantum Physics

Accelerating De Novo Genome Assembly via Quantum-Assisted Graph Optimization with Bitstring Recovery

Jaya Vasavi Pamidimukkala, Himanshu Sahu, Ashwini Kannan +3 more·Jan 29, 2026

Genome sequencing is essential to decode genetic information, identify organisms, understand diseases and advance personalized medicine. A critical step in any genome sequencing technique is genome assembly. However, de novo genome assembly, which in...

Quantum Physicsq-bio.GN

Designing quantum technologies with a quantum computer

Juan Naranjo, Thi Ha Kyaw, Gaurav Saxena +2 more·Jan 29, 2026

Interacting spin systems in solids underpin a wide range of quantum technologies, from quantum sensors and single-photon sources to spin-defect-based quantum registers and processors. We develop a quantum-computer-aided framework for simulating such ...

Quantum Physicscond-mat.mtrl-sci

A scalable quantum-enhanced greedy algorithm for maximum independent set problems

Elisabeth Wybo, Jami Rönkkö, Olli Hirviniemi +2 more·Jan 29, 2026

We investigate a hybrid quantum-classical algorithm for solving the Maximum Independent Set (MIS) problem on regular graphs, combining the Quantum Approximate Optimization Algorithm (QAOA) with a minimal degree classical greedy algorithm. The method ...

Quantum Physics

Quantum LEGO Learning: A Modular Design Principle for Hybrid Artificial Intelligence

Jun Qi, Chao-Han Huck Yang, Pin-Yu Chen +3 more·Jan 29, 2026

Hybrid quantum-classical learning models increasingly integrate neural networks with variational quantum circuits (VQCs) to exploit complementary inductive biases. However, many existing approaches rely on tightly coupled architectures or task-specif...

cs.LGQuantum Physics

Non-secular polariton leakage and dark-state protection in hybrid plasmonic cavities

Marco Vallone·Jan 29, 2026

A major issue in exploiting plasmonic cavities as key components in nanotechnology is the effect of radiative and absorption losses on their electrodynamic behavior. Treating them as open-systems, we derive a time-local, completely positive master eq...

physics.opticsMesoscale PhysicsQuantum Physics

Entanglement of quantum systems via a classical mediator in hybrid van Hove theory

Sebastian Ulbricht, Andrés Darío Bermúdez Manjarres, Marcel Reginatto·Jan 29, 2026

It is a matter of ongoing discussion whether quantum states can become entangled while only interacting via a classical mediator. This lively debate is deeply interwoven with the question of whether entanglement studies can prove the quantum nature o...

Quantum Physics

A Deterministic Framework for Neural Network Quantum States in Quantum Chemistry

Zheng Che·Jan 29, 2026

Stochastic optimization of Neural Network Quantum States (NQS) in discrete Fock spaces is limited by sampling variance and slow mixing. We present a deterministic framework that optimizes a neural backflow ansatz within dynamically adaptive configura...

physics.chem-phQuantum Physics

Polaron-Polaritons in Subwavelength Arrays of Trapped Atoms

Kristian Knakkergaard Nielsen, Lukas Wangler, David Castells-Graells +4 more·Jan 28, 2026

Subwavelength arrays of atoms trapped in optical lattices or tweezers are inherently susceptible to deformations: Optomechanical forces produce lattice distortions, which, in turn, modify the optical response of the array. We show that this coupling ...

Quantum Physicscond-mat.quant-gas

A Hybrid Jump-Diffusion Model for Coherent Optical Control of Quantum Emitters in hBN

Saifian Farooq Bhat, Michael K. Koch, Sachin Negi +2 more·Jan 28, 2026

Hexagonal boron nitride (hBN) has emerged as a promising two-dimensional host for stable single-photon emission owing to its wide bandgap, high photostability, and compatibility with nanophotonic integration. We present a simulation-based study of te...

Quantum Physicsphysics.optics

A Cyclic Layerwise QAOA Training

Enhyeok Jang, Zihan Chen, Dongho Ha +6 more·Jan 27, 2026

The quantum approximate optimization algorithm (QAOA) is a hybrid quantum-classical algorithm for solving combinatorial optimization problems. Multi-angle QAOA (MA-QAOA), which assigns independent parameters to each Hamiltonian operator term, achieve...

Quantum Physics
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