Quantum Brain

Papers

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

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28,669

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13,711 papers in 12 months (-14% vs prior quarter)

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28,669 papers found

Entanglement entropy dynamics of non-Gaussian states in free boson systems: Random sampling approach

Ryui Kaneko, D. Kagamihara, I. Danshita·Nov 15, 2024

We develop a random sampling method for calculating the time evolution of the R\'{e}nyi entanglement entropy after a quantum quench from an insulating state in free boson systems. Because of the non-Gaussian nature of the initial state, calculating t...

Physics

Quantum similarity learning for anomaly detection

A. Hammad, M. Nojiri, Masahito Yamazaki·Nov 15, 2024

Anomaly detection is a vital technique for exploring signatures of new physics Beyond the Standard Model (BSM) at the Large Hadron Collider (LHC). The vast number of collisions generated by the LHC demands sophisticated deep learning techniques. Simi...

Physics

Quadratic versus Polynomial Unconstrained Binary Models for Quantum Optimization illustrated on Railway Timetabling

Camille Grange, Marion Lavignac, Valentina Pozzoli +1 more·Nov 15, 2024

Quantum Approximate Optimization Algorithm (QAOA) is one of the most short-term promising quantum-classical algorithm to solve unconstrained combinatorial optimization problems. It alternates between the execution of a parametrized quantum circuit an...

MathematicsPhysics

Post-Newtonian Effective Field Theory Approach to Entanglement Harvesting, Quantum Discord and Bell's Nonlocality Bound Near a Black Hole

Feng-Li Lin, Sayid Mondal·Nov 14, 2024

Black holes, as characterized by the Hawking effect and Bekenstein-Hawking entropy, can be treated as a compact object carrying nontrivial quantum information obscured behind the event horizon. Thus, the black hole may convey and retract its quantum ...

hep-thgr-qcQuantum Physics

Left-Right Relative Entropy

Mostafa Ghasemi·Nov 14, 2024

The concept of distinguishability lies at the heart of quantum information theory. We introduce \textit{left-right relative entropy} as a quantitative measure of distinguishability within the space of boundary states in two-dimensional conformal fiel...

hep-thMathematical PhysicsQuantum Physics

On the structure of higher order quantum maps

Anna Jenčová·Nov 14, 2024

We study higher order quantum maps in the context of a *-autonomous category of affine subspaces. We show that types of higher order maps can be identified with certain Boolean functions that we call type functions. By an extension of this identifica...

Quantum Physicsmath.CO

Artificial Intelligence for Quantum Computing

Yuri Alexeev, Marwa H. Farag, Taylor L. Patti +25 more·Nov 14, 2024

Artificial intelligence (AI) advancements over the past few years have had an unprecedented and revolutionary impact across everyday application areas. Its significance also extends to technical challenges within science and engineering, including th...

Quantum Physics

Optimal State Preparation for Logical Arrays on Zoned Neutral Atom Quantum Computers

Yannick Stade, Ludwig Schmid, Lukas Burgholzer +1 more·Nov 14, 2024

Quantum computing promises to solve problems previously deemed infeasible. However, high error rates necessitate quantum error correction for practical applications. Seminal experiments with zoned neutral atom architectures have shown remarkable pote...

Computer SciencePhysics

Noise-adapted quantum error correction for non-Markovian noise

Debjyoti Biswas, Shrikant Utagi, Prabha Mandayam·Nov 14, 2024

We consider the problem of quantum error correction (QEC) for non-Markovian noise. Using the well known Petz recovery map, we first show that conditions for approximate QEC can be easily generalized for the case of non-Markovian noise, in the strong ...

PhysicsMathematics

Non-Variational ADAPT algorithm for quantum simulations

Ho Lun Tang, Yanzhu Chen, P. Biswas +3 more·Nov 14, 2024

We explore a non-variational quantum state preparation approach combined with the ADAPT operator selection strategy in the application of preparing the ground state of a desired target Hamiltonian. In this algorithm, energy gradient measurements dete...

Physics

Efficient quantum simulation of QCD jets on the light front

Wenyang Qian, Meijian Li, Carlos A. Salgado +1 more·Nov 14, 2024

Quark and gluon jets provide one of the best ways to probe the matter produced in ultrarelativistic high-energy collisions, from cold nuclear matter to hot quark-gluon plasma. In this work, we propose a unified framework for efficient quantum simulat...

Physics

Architectural Patterns for Designing Quantum Artificial Intelligence Systems

Mykhailo V. Klymenko, Thong Hoang, Xiwei Xu +4 more·Nov 14, 2024

Utilising quantum computing technology to enhance artificial intelligence systems is expected to improve training and inference times, increase robustness against noise and adversarial attacks, and reduce the number of parameters without compromising...

Computer SciencePhysics

Nonlinear protocol for high-dimensional quantum teleportation

Luca Bianchi, Carlo Marconi, Giulia Guarda +1 more·Nov 14, 2024

Bell measurements, which allow entanglement between uncorrelated distant particles, play a central role in quantum communication. Indeed sharing, measuring and creating entanglement lie at the core of various protocols, such as entanglement swapping ...

Physics

AMARETTO: Enabling Efficient Quantum Algorithm Emulation on Low-Tier FPGAs

Christian Conti, Deborah Volpe, Mariagrazia Graziano +2 more·Nov 14, 2024

Researchers and industries are increasingly drawn to quantum computing for its computational potential. However, validating new quantum algorithms is challenging due to the limitations of current quantum devices. Software simulators are time and memo...

Computer SciencePhysicsEngineering

Correction of circuit faults in a stacked quantum memory using rank-metric codes

Nicolas Delfosse, Gilles Z'emor·Nov 14, 2024

We introduce a model for a stacked quantum memory made with multi-qubit cells, inspired by multi-level flash cells in classical solid-state drive, and we design quantum error correction codes for this model by generalizing rank-metric codes to the qu...

PhysicsComputer ScienceMathematics

A universal circuit set using the S3 quantum double

Liyuan Chen, Yuanjie Ren, Ruihua Fan +1 more·Nov 14, 2024

One potential route toward fault-tolerant universal quantum computation is to use non-Abelian topological codes. In this work, we investigate how to achieve this goal with the quantum double model D(S3)\documentclass[12pt]{minimal} \usepackage{amsmat...

Physics

Realizing Quantum Kernel Models at Scale with Matrix Product State Simulation

Mekena Metcalf, Pablo Andrés-Martínez, Nathan Fitzpatrick·Nov 14, 2024

Data representation in quantum state space offers an alternative function space for machine learning tasks. However, benchmarking these algorithms at a practical scale has been limited by ineffective simulation methods. We develop a quantum kernel fr...

Computer SciencePhysics

Quantum multi-output Gaussian Processes based Machine Learning for Line Parameter Estimation in Electrical Grids

Priyanka Arkalgud Ganeshamurthy, K. Ghosh, Corey O’Meara +3 more·Nov 14, 2024

Gaussian process (GP) is a powerful modeling method with applications in machine learning for various engineering and non-engineering fields. Despite numerous benefits of modeling using GPs, the computational complexity associated with GPs demanding ...

Physics

AutoQ 2.0: From Verification of Quantum Circuits to Verification of Quantum Programs

Yu-Fang Chen, Kai-Min Chung, Min-Hsiu Hsieh +4 more·Nov 14, 2024

We present a verifier of quantum programs called AutoQ 2.0. Quantum programs extend quantum circuits (the domain of AutoQ 1.0) by classical control flow constructs, which enable users to describe advanced quantum algorithms in a formal and precise ma...

Computer Science

Classical Verification of Quantum Learning Advantages with Noises

Yi Ma, Jiaxi Su, Dong-Ling Deng·Nov 14, 2024

Classical verification of quantum learning allows classical clients to reliably leverage quantum computing advantages by interacting with untrusted quantum servers. Yet, current quantum devices available in practice suffers from a variety of noises a...

Computer SciencePhysics
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