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

13,127 papers in 12 months (+1% vs prior quarter)

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

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27,881 papers found

Artificial Entanglement in the Fine-Tuning of Large Language Models

Min Chen, Zihan Wang, Canyu Chen +3 more·Jan 11, 2026

Large language models (LLMs) can be adapted to new tasks using parameter-efficient fine-tuning (PEFT) methods that modify only a small number of trainable parameters, often through low-rank updates. In this work, we adopt a quantum-information-inspir...

cs.LGAIhep-thQuantum Physics

Geometric and Operational Characterization of Two-Qutrit Entanglement

Ankita Jana·Jan 11, 2026

We investigate the entanglement structure of bipartite two-qutrit pure states from both geometric and operational perspectives.Using the eigenvalues of the reduced density matrix, we analyze how symmetric polynomials characterize pairwise and genuine...

Quantum Physics

Experimental Coherent One-Way Quantum Key Distribution with Simplicity and Practical Security

Xiao-Yu Cao, Xiao-Ran Sun, Ming-Yang Li +3 more·Jan 11, 2026

Coherent one-way quantum key distribution (COW-QKD) has been widely investigated, and even been deployed in real-world quantum network. However, the proposal of the zero-error attack has critically undermined its security guarantees, and existing exp...

Quantum Physics

Quantum science with arrays of metastable helium-3 atoms

Zheyuan Li, Rupsa De, Rishi Sivakumar +7 more·Jan 11, 2026

The motion of atoms in programmable optical tweezer arrays offers many new opportunities for neutral atom quantum science. These include inter- and intra-site atom motion for resource-efficient implementations of fermionic and bosonic modes, respecti...

Quantum Physicscond-mat.quant-gasAtomic Physics

Noise-Resistant Feature-Aware Attack Detection Using Quantum Machine Learning

Chao Ding, Shi Wang, Jingtao Sun +3 more·Jan 11, 2026

Continuous-variable quantum key distribution (CV-QKD) is a quantum communication technology that offers an unconditional security guarantee. However, the practical deployment of CV-QKD systems remains vulnerable to various quantum attacks. In this pa...

Quantum Physics

A paradigm for universal quantum information processing with integrated acousto-optic frequency beamsplitters

Joseph M. Lukens, John H. Dallyn, Hsuan-Hao Lu +5 more·Jan 11, 2026

Frequency-bin encoding offers tremendous potential in quantum photonic information processing, in which a single waveguide can support hundreds of lightpaths in a naturally phase-stable fashion. This stability, however, comes at a cost: arbitrary uni...

Quantum Physics

Non-Abelian qLDPC: TQFT Formalism, Addressable Gauging Measurement and Application to Magic State Fountain on 2D Product Codes

Guanyu Zhu, Ryohei Kobayashi, Po-Shen Hsin·Jan 11, 2026

A fundamental problem of fault-tolerant quantum computation with quantum low-density parity-check (qLDPC) codes is the tradeoff between connectivity and universality. It is widely believed that in order to perform native logical non-Clifford gates, o...

Quantum Physicscond-mat.str-elcs.IThep-th

Quantum Computing and Visualization Research Challenges and Opportunities

E. Wes Bethel, Roel Van Beeumen, Talita Perciano·Jan 11, 2026

Quantum computing (QC) has experienced rapid growth in recent years with the advent of robust programming environments, readily accessible software simulators and cloud-based QC hardware platforms, and growing interest in learning how to design usefu...

Quantum Physics

Resource-Aware Task Allocator Design: Insights and Recommendations for Distributed Satellite Constellations

Bharadwaj Veeravalli·Jan 10, 2026

We present the design of a Resource-Aware Task Allocator (RATA) and an empirical analysis in handling real-time tasks for processing on Distributed Satellite Systems (DSS). We consider task processing performance across low Earth orbit (LEO) to Low-M...

cs.DCEmerging Tech

Rydberg atom parity gate based on dark state resonances

Sinchan Snigdha Rej, Snigdhadev Ray, Bimalendu Deb·Jan 10, 2026

Quantum computation (QC) and digital quantum simulation (DQS) essentially require two- or multi-qubit controlled-NOT or -phase gates. We propose an alternative pathway for QC and DQS using a three-qubit parity gate in a Rydberg atom array. The basic ...

Quantum Physics

Chip-integrated metasurface-enabled single-photon skyrmion sources

Xujing Liu, Yinhui Kan, Shailesh Kumar +4 more·Jan 10, 2026

Skyrmions, topologically stable field configurations, have recently emerged in classical optics as structured light for high-density data applications. Achieving controllable on-chip generation of single-photon skyrmions, while being highly desirable...

physics.opticsMesoscale PhysicsQuantum Physics

Kara-Kichwa Data Sovereignty Framework: Reference Point for Indigenous Data Authority Renaissances in LAC

WariNkwi K. Flores, KunTikzi Flores, Rosa M. Panama +1 more·Jan 10, 2026

For Indigenous Peoples of the Apya Yala (or Abya Yala), particularly in the Kara and Kichwa citizens of the Pan-Andean-Amazonian biocultural region, data is not merely a knowledge or information resource, it is the extension of Khipu Panaka (Indigeno...

cs.CYEmerging Tech

Wave Function Realism and the Mathematization of Nature. A Phenomenological Perspective

Philipp Berghofer, Harald A. Wiltsche·Jan 10, 2026

This chapter reexamines wave function realism (WFR) through the lens of phenomenology. We begin by situating WFR within the broader debate about the ontology of the quantum state and the temptation to "read off" metaphysics from mathematical formalis...

physics.hist-phQuantum Physics

Magnetic levitation and spatial superposition of a nanodiamond with a current-carrying chip

Qian Xiang, Shafaq Gulzar Elahi, Andrew Geraci +2 more·Jan 10, 2026

We propose a current-carrying-chip scheme for generating spatial quantum superpositions using a levitating nanodiamond with a built-in nitrogen-vacancy (NV) centre defect. Our setup is quite versatile and we aim to create the superposition for a mass...

Quantum Physics

Transfer of Orbital Angular Momentum in Vortex Light through Four-Wave Mixing and the Manipulation of Slow and Fast Light

Fan Meng, Xin-Yao Huang, Guo-Feng Zhang·Jan 10, 2026

Vortex light, a unique optical field that carries orbital angular momentum (OAM), has attracted considerable attention in recent years. In this paper, we present a detailed theoretical analysis of OAM transfer from the input field to the generated si...

physics.opticsQuantum Physics

Spontaneous Brillouin Scattering in a Few-Mode Optical Fiber

Hikari Kikuchi, Rekishu Yamazaki·Jan 10, 2026

We report a comprehensive experimental study of spontaneous Brillouin scattering in a few-mode optical fiber, resolving both forward and backward scattering processes for intra- and inter-modal interactions. Using heterodyne detection, Stokes and ant...

physics.opticsQuantum Physics

Digital Predistortion of Power Amplifiers for Quantum Computing

Marvin Jaeger, Bartosz Tegowski, Georg Frederik Riemschneider +1 more·Jan 10, 2026

Power amplifiers (PA) are essential for microwavecontrolled trapped-ion and semiconductor spin based quantum computers (QC). They adjust the power level of the control signal and therefore the processing time of the QC. Their nonlinearities and memor...

Quantum Physicseess.SP

Restoring Locality: The Heisenberg Picture as a Separable Description of Quantum Theory

Sam Kuypers·Jan 10, 2026

Local realism has been the subject of much discussion in modern physics, partly because our deepest theories of physics appear to contradict one another in regard to whether reality is local. According to general relativity, it is, as physical quanti...

Quantum Physics

Even Odd Splitting of the Gaussian Quantum Fisher Information: From Symplectic Geometry to Metrology

Kaustav Chatterjee, Tanmoy Pandit, Varinder Singh +2 more·Jan 10, 2026

We introduce a canonical decomposition of the quantum Fisher information (QFI) for centered multimode Gaussian states into two additive pieces: an even part that captures changes in the symplectic spectrum and an odd part associated with correlation-...

Quantum PhysicsMathematical Physics

A novel RF-enabled Non-Destructive Inspection Method through Machine Learning and Programmable Wireless Environments

Stavros Tsimpoukis, Dimitrios Tyrovolas, Sotiris Ioannidis +4 more·Jan 10, 2026

Contemporary industrial Non-Destructive Inspection (NDI) methods require sensing capabilities that operate in occluded, hazardous, or access restricted environments. Yet, the current visual inspection based on optical cameras offers limited quality o...

cs.LGEmerging Tech
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