Quantum Brain

Papers

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

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28,250

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

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Hardware platform mentions in abstractsPhotonic leads

28,250 papers found

Classical Simulations of Low Magic Quantum Dynamics

Kemal Aziz, Haining Pan, M. Gullans +1 more·Aug 27, 2025

We develop classical simulation algorithms for adaptive quantum circuits that produce states with low levels of ``magic''(i.e., non-stabilizerness). These algorithms are particularly well-suited to circuits with high rates of Pauli measurements, such...

Physics

Composite-Dimensional Topological Codes with Boundaries and Defects

Mohamad Mousa, Amit Jamadagni, Eugene Dumitrescu·Aug 26, 2025

We introduce new algorithms and provide example constructions of stabilizer models for the gapped boundaries, domain walls, and $0D$ defects of Abelian composite-dimensional twisted quantum doubles. Using the physically intuitive concept of condensat...

Quantum Physicscond-mat.otherMathematical Physics

Unquestionable Bell theorem for interwoven frustrated down conversion processes

Paweł Cieśliński, Jan-Åke Larsson, Marcin Markiewicz +2 more·Aug 26, 2025

Interwoven frustrated parametric down conversion (PDC) processes produce interference effects based on path identity [Phys. Rev. Lett. 118, 080401 (2017)]. In this letter we show Bell nonclassicality of the processes: a proper violation of the Clause...

Quantum Physics

Universal Dynamics with Globally Controlled Analog Quantum Simulators

Hong-Ye Hu, Abigail McClain Gomez, Liyuan Chen +6 more·Aug 26, 2025

Analog quantum simulators with global control fields have emerged as powerful platforms for exploring complex quantum phenomena. Despite these advances, a fundamental theoretical question remains unresolved: to what extent can such systems realize un...

Quantum Physicscond-mat.quant-gascond-mat.str-elcs.LG

Iterative Partition Search Variational Quantum Algorithm for Solving Shortest Vector Problem

Zi-Wen Huang, Xiao-Hui Ni, Jia-Cheng Fan +4 more·Aug 26, 2025

The Partition Search Algorithm (PSA) and Iterative Quantum Optimization with an Adaptive Problem (IQOAP) are leading variational quantum algorithms for solving Shortest Vector Problem (SVP). However, each has limitations that restrict its practical i...

Quantum Physics

Architecting Distributed Quantum Computers: Design Insights from Resource Estimation

Dmitry Filippov, Peter Yang, Prakash Murali·Aug 26, 2025

In the emerging field of Fault Tolerant Quantum Computation (FTQC), resource estimation is an important tool for quantitatively comparing prospective architectures, identifying hardware bottlenecks and informing which research paths are most valuable...

Quantum Physicscs.ARcs.DCEmerging Tech

QAgent: An LLM-based Multi-Agent System for Autonomous OpenQASM programming

Zhenxiao Fu, Fan Chen, Lei Jiang·Aug 26, 2025

Noisy Intermediate-Scale Quantum (NISQ) devices have begun to exhibit early quantum advantages on classically intractable problems, spanning physics simulations to Gaussian boson sampling. Yet, realizing these benefits remains challenging for non-exp...

Computer SciencePhysics

Full counting statistics and first-passage times in quantum Markovian processes: Ensemble relations, metastability, and fluctuation theorems

Paul Menczel, C. Flindt, F. Brange +2 more·Aug 26, 2025

We develop a comprehensive framework for characterizing fluctuations in quantum transport and nonequilibrium thermodynamics using two complementary approaches: full counting statistics and first-passage times. Focusing on open quantum systems governe...

Physics

Efficient and scalable inter-module switching for distributed quantum computing architectures

Kamil Bradler·Aug 26, 2025

Large-scale fault-tolerant quantum computers of the future will likely be modular by necessity or by design. Modularity is inevitable if the substrate cannot support the desired error-correction code due to its planar geometry or manufacturing constr...

PhysicsMathematics

Towards Quantum Machine Learning for Malicious Code Analysis

Jesus Lopez, Saeefa Rubaiyet Nowmi, Viviana Cadena +1 more·Aug 26, 2025

Classical machine learning (CML) has been extensively studied for malware classification. With the emergence of quantum computing, quantum machine learning (QML) presents a paradigm-shifting opportunity to improve malware detection, though its applic...

Computer Science

Quantum computing on encrypted data with arbitrary rotation gates

Mohit Joshi, Manoj Kumar Mishra, S. Karthikeyan·Aug 26, 2025

An efficient technique of computing on encrypted data allows a client with limited capability to perform complex operations on a remote fault-tolerant server without leaking anything about the input or output. Quantum computing provides information-t...

PhysicsComputer Science

First-Quantized Quantum Simulation of Non-Relativistic QED with Emergent Topologically Protected Coulomb Interactions

Torin F. Stetina, Nathan Wiebe·Aug 26, 2025

We provide a simulation algorithm that properly addresses light matter interaction between non-relativistic first-quantized charged particles and quantum electromagnetic fields. Unlike previous work, our Hamiltonian does not include an explicit Coulo...

Physics

Enhanced algorithmic perfect state transfer on IBM quantum computers

Zong-Yuan Ge, Lian-Ao Wu, Zhao-Ming Wang·Aug 26, 2025

Perfect state transfer (PST) through a spin chain can be theoretically obtained via predesigned PST couplings. We perform the algorithmic PST simulations through short spin chains on IBM quantum computers, alongside Qiskit simulations. The results de...

Physics

Chiral Discrimination on Gate-Based Quantum Computers

Muhammad Arsalan Ali Akbar, Sabre Kais·Aug 25, 2025

We present a novel approach to chiral discrimination using gate-based quantum processors, addressing a key challenge in adapting conventional control techniques using modern quantum computing. Schemes such as stimulated rapid adiabatic passage (STIRA...

Quantum Physics

Entanglement dynamics of monitored noninteracting fermions on graphics processing units

Bo Fan, Can Yin, Antonio M. García-García·Aug 25, 2025

The description of the entanglement dynamics of monitored noninteracting fermions, including the existence of measurement-induced phase transitions (MIPTs), is a challenging problem with conflicting results in the literature. The mapping of the probl...

Quantum Physicshep-th

Group-Theoretic Perspective on the PPT and Realignment Criteria in the Magic Simplex for Bipartite Qutrits

Tobias C. Sutter, Christopher Popp, Beatrix C. Hiesmayr·Aug 25, 2025

Entanglement is a key feature in many quantum technologies, including secure communication protocols and quantum computing. However, detecting it in mixed quantum states remains a challenging task. While the positive partial transposition (PPT) and c...

Quantum Physics

Emergence of vorticity and viscous stress in finite-scale quantum hydrodynamics

Christopher Triola·Aug 25, 2025

The Madelung equations offer a hydrodynamic description of quantum systems, from single particles to quantum fluids. In this formulation, the probability density is mapped onto the fluid density and the phase is treated as a scalar potential generati...

physics.flu-dynQuantum Physics

A Scalable Heuristic for Molecular Docking on Neutral-Atom Quantum Processors

Mathieu Garrigues, Victor Onofre, Wesley Coelho +1 more·Aug 25, 2025

Molecular docking is a critical computational method in drug discovery used to predict the binding conformation and orientation of a ligand within a protein's binding site. Mapping this challenge onto a graph-based problem, specifically the Maximum W...

Quantum Physicsphysics.chem-ph

Correlation Enhanced Autonomous Quantum Battery Charging via Structured Reservoirs

Achraf Khoudiri, Abderrahim El Allati, Youssef Khlifi +2 more·Aug 25, 2025

In this work, we investigate autonomous charging of a quantum battery coupled to a structured reservoir composed of two qubits, each locally coupled to its own bosonic thermal bath. Moreover, the reservoir interacts with a charger-battery architectur...

Quantum Physics

Quantum Paths: a Quantum Walk approach

Claudio Pellitteri, Marcello Caleffi, Angela Sara Cacciapuoti·Aug 25, 2025

The quantum switch, a process enabling a coherent superposition of different orders of quantum channels, has garnered significant attention due to its ability to enable noiseless communications through noisy channels, such as entanglement-breaking ch...

Quantum Physicscs.NI
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