Quantum Brain

Papers

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

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28,250

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22

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13,394 papers in 12 months (-22% vs prior quarter)

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28,250 papers found

Cutting stabiliser decompositions of magic state cultivation with ZX-calculus

Kwok Ho Wan, Zhenghao Zhong·Sep 1, 2025

We apply the cutting stabiliser decomposition techniques [arXiv:2403.10964] to the quantum states generated from magic state cultivation [arXiv:2409.17595], post-selected upon all $+1$ measured values for simplicity. The resultant states to the $d=3$...

Physics

Electron transfer between surface-acoustic-wave-induced moving and static quantum dots

M. Olano, G. Giedke·Sep 1, 2025

Fast long-range interactions between distant quantum dots in arrays remains an unsolved issue, which can be key to solve scalability issues in quantum simulation and computation processes, particularly related to the overhead associated with quantum ...

Physics

Enhanced measurements on quantum computers via the simultaneous probing of non-commuting Pauli operators

R. P. Simon, Zheng Shi, C. Nation +2 more·Sep 1, 2025

Measuring the state of quantum computers is a highly non-trivial task, with implications for virtually all quantum algorithms. We propose a novel scheme where identical copies of a quantum state are measured jointly so that all Pauli operators within...

Physics

Quantum Brush: A quantum computing-based tool for digital painting

Joao S. Ferreira, Arianna Crippa, Astryd Park +5 more·Sep 1, 2025

We present Quantum Brush, an open-source digital painting tool that harnesses quantum computing to generate novel artistic expressions. The tool includes four different brushes that translate strokes into unique quantum algorithms, each highlighting ...

Computer SciencePhysics

The Chaotic Art: Quantum Representation and Manipulation of Color

Guosheng Hu·Sep 1, 2025

Due to its unique computing principles, quantum computing technology will profoundly change the spectacle of color art. Focusing on experimental exploration of color qubit representation, color channel processing, and color image generation via quant...

PhysicsComputer Science

Are Enterprises Ready for Quantum-Safe Cybersecurity?

Tran Duc Le, Phuc Hao Do, T. Dinh +1 more·Sep 1, 2025

Quantum computing threatens to undermine classical cryptography by breaking widely deployed encryption and signature schemes. This paper examines enterprise readiness for quantum-safe cybersecurity through three perspectives: (i) the technologist vie...

Computer Science

Sampling Continuous Quantum Dynamics from a Single Static State

S. Gemsheim, Felix Fritzsch·Sep 1, 2025

While quantum simulation is one of the most promising applications of modern quantum devices, accessible simulation times are fundamentally limited by finite coherence times due to omnipresent noise. Based on the ideas of relational dynamics/time and...

Physics

Measuring Less to Learn More: Quadratic Speedup in learning Nonlinear Properties of Quantum Density Matrices

Yukun Zhang, Yusen Wu, You Zhou +1 more·Sep 1, 2025

A fundamental task in quantum information science is to measure nonlinear functionals of quantum states, such as $\mathrm{Tr}(\rho^k O)$. Intuitively, one expects that computing a $k$-th order quantity generally requires $O(k)$ copies of the state $\...

Physics

Phase-Sensitive Measurements on a Fermi-Hubbard Quantum Processor

Alberto R. Cavallar, Luis Escalera-Moreno, Titus Franz +4 more·Sep 1, 2025

Fermionic quantum processors are a promising platform for quantum simulation of correlated fermionic matter. In this work, we study a hardware-efficient protocol for measuring complex expectation values of the time-evolution operator, commonly referr...

Physics

In Silico Benchmarking of Detectable Byzantine Agreement in Noisy Quantum Networks

Mayank Bhatia, Shaan Doshi, Daniel Winton +3 more·Sep 1, 2025

Quantum communication resources offer significant advantages for fault-tolerant distributed protocols, particularly in Byzantine Agreement (BA), where reliability against adversarial interference is essential. Quantum Detectable Byzantine Agreement (...

Computer SciencePhysics

Do quantum linear solvers offer advantage for networks-based system of linear equations?

Disha Shetty, Supriyo Dutta, Palak Chawla +5 more·Aug 31, 2025

In this exploratory numerical study, we assess the suitability of Quantum Linear Solvers(QLSs)toward providing a quantum advantage for Networks-based Linear System Problems (NLSPs). NLSPs naturally arise from graphs, and are of importance as they are...

Quantum PhysicsMathematical Physics

Emergence of non-Markovian Decoherent Histories in Integrable Environment: A "Tape Recorder" Model for Local Quantum Observables

Nataliya Arefyeva, Evgeny Polyakov·Aug 31, 2025

We propose a new approach to coarse-grained description of quantum evolution that provides an explicit recipe to construct and evaluate multi-time decoherent histories in a controlled way, applicable to non-Markovian and integrable systems. Specifica...

Quantum Physics

Self-Organising Memristive Networks as Physical Learning Systems

Francesco Caravelli, Gianluca Milano, Adam Z. Stieg +3 more·Aug 31, 2025

Learning with physical systems is an emerging paradigm that seeks to harness the intrinsic nonlinear dynamics of physical substrates for learning. The impetus for a paradigm shift in how hardware is used for computational intelligence stems largely f...

cond-mat.dis-nnMesoscale Physicscond-mat.softEmerging Tech

Implementing Pearl's $\mathcal{DO}$-Calculus on Quantum Circuits: A Simpson-Type Case Study on NISQ Hardware

Pilsung Kang·Aug 31, 2025

Distinguishing correlation from causation is a central challenge in machine intelligence, and Pearl's $\mathcal{DO}$-calculus provides a rigorous symbolic framework for reasoning about interventions. A complementary question is whether such intervent...

Quantum PhysicsAIcs.LG

Classical algorithms for measurement-adaptive Gaussian circuits

Changhun Oh, Youngrong Lim·Aug 31, 2025

Gaussian building blocks are essential for photonic quantum information processing, and universality can be practically achieved by equipping Gaussian circuits with adaptive measurement and feedforward. The number of adaptive steps then provides a na...

Physics

MAESTROCUT: Dynamic, Noise-Adaptive, and Secure Quantum Circuit Cutting on Near-Term Hardware

Samuel Punch, Krishnendu Guha·Aug 31, 2025

We present MaestroCut, a closed-loop framework for quantum circuit cutting that adapts partitioning and shot allocation to device drift and workload variation. MaestroCut tracks a variance proxy in real time, triggers re-cutting when accuracy degrade...

Computer Science

A simple universal routing strategy for reducing the connectivity requirements of quantum LDPC codes

Guangqi Zhao, F. Yan, Xiaotong Ni·Aug 31, 2025

Quantum low-density parity-check codes reduce quantum error correction overhead but require dense, long-range connectivity that challenges hardware implementation, particularly for superconducting processors. We address this problem by demonstrating ...

Physics

Quantum-Based QoE Optimization in Advanced Cellular Networks: Integration and Cloud Gaming Use Case

Fatma Chaouech, Javier Villegas, Ant'onio Pereira +8 more·Aug 31, 2025

This work explores the integration of Quantum Machine Learning (QML) and Quantum-Inspired (QI) techniques for optimizing End-to-End (E2E) network services in telecommunication systems, particularly focusing on 5G networks and beyond. The application ...

Computer SciencePhysics

Optimal quantum likelihood estimation

A. Levi, Ziv Ossi, Eliahu Cohen +1 more·Aug 31, 2025

A hybrid quantum–classical algorithm is a computational scheme in which quantum circuits are used to extract information that is then processed by a classical routine to guide subsequent quantum operations. These algorithms are especially valuable in...

Physics

Genuine multientropy, dihedral invariants and Lifshitz theory

Clément Berthière, Paul Gaudin·Aug 30, 2025

Multi-invariants are local-unitary invariants of state replicas introduced as potential probes of multipartite entanglement and correlations in quantum many-body systems. In this paper, we investigate two multi-invariants for tripartite pure states, ...

hep-thcond-mat.str-elQuantum Physics
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