Quantum Brain

Papers

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

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28,402

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13,509 papers in 12 months (-19% vs prior quarter)

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Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

28,402 papers found

Suppressing measurement noise in logical qubits through measurement scheduling

Xiao-Yue Xu, Chen Ding, Wan-Su Bao·May 12, 2025

Quantum error correction is essential for reliable quantum computation, where surface codes demonstrate high fault-tolerant thresholds and hardware efficiency. However, noise in single-shot measurements limits logical readout fidelity, forming a crit...

Physics

Enhancing Network Anomaly Detection with Quantum GANs and Successive Data Injection for Multivariate Time Series

Wajdi Hammami, S. Cherkaoui, Shengrui Wang·May 12, 2025

Quantum computing may offer new approaches for advancing machine learning, including in complex tasks such as anomaly detection in network traffic. In this paper, we introduce a quantum generative adversarial network (QGAN) architecture for multivari...

Computer SciencePhysics

Circuit Partitioning Using Large Language Models for Quantum Compilation and Simulations

Pranav Sinha, S. Jha, Sunny Raj·May 12, 2025

We are in the midst of the noisy intermediate-scale quantum (NISQ) era, where quantum computers are limited by noisy gates, some of which are more error-prone than others and can render the final computation incomprehensible. Quantum circuit compilat...

Computer SciencePhysics

Process Tomography for Clifford Unitaries

Timothy Skaras, P. Ginsparg·May 12, 2025

We present an algorithm for performing quantum process tomography on an unknown $n$-qubit unitary $C$ from the Clifford group. Our algorithm uses Bell basis measurements to deterministically learn $C$ with $4n + 3$ queries, which is the asymptoticall...

Physics

Qubitlens: an Interactive Learning Tool for Quantum State Tomography

Mohammad Aamir Sohail, R. Sudharshan, S. Pradhan +1 more·May 12, 2025

Quantum state tomography is a fundamental task in quantum computing, involving the reconstruction of an unknown quantum state from measurement outcomes. Although essential, it is typically introduced at the graduate level due to its reliance on advan...

PhysicsEngineering

QUEST: QUantum-Enhanced Shared Transportation

Chinonso Onah, Neel Miscasci, C. Othmer +1 more·May 12, 2025

We introduce “Windbreaking-as-a-Service” (WaaS) as an innovative approach to shared transportation in which larger “windbreaker” vehicles provide aerodynamic shelter for “windsurfer” vehicles, thereby reducing drag and energy consumption. As a comput...

Computer SciencePhysics

Constant-Overhead Magic State Injection into qLDPC Codes with Error Independence Guarantees

Guo Zhang, Yuanye Zhu, Xiao Yuan +1 more·May 11, 2025

Magic states are essential yet resource-intensive components for realizing universal fault-tolerant quantum computation. Preparing magic states within emerging quantum low-density parity-check (qLDPC) codes poses additional challenges, due to the com...

Physics

QSeer: A Quantum-Inspired Graph Neural Network for Parameter Initialization in Quantum Approximate Optimization Algorithm Circuits

Lei Jiang, Chi Zhang, Fangjing Chen·May 11, 2025

To mitigate the barren plateau problem, effective parameter initialization is crucial for optimizing the Quantum Approximate Optimization Algorithm (QAOA) in the near-term Noisy Intermediate-Scale Quantum (NISQ) era. Prior physicsdriven approaches le...

Computer Science

Quantum Observers: A NISQ Hardware Demonstration of Chaotic State Prediction Using Quantum Echo-state Networks

Erik L. Connerty, Ethan N. Evans, Gerasimos Angelatos +1 more·May 11, 2025

Recent advances in artificial intelligence have highlighted the remarkable capabilities of neural network (NN)-powered systems on classical computers. However, these systems face significant computational challenges that limit scalability and efficie...

PhysicsComputer Science

Quantum RNNs and LSTMs Through Entangling and Disentangling Power of Unitary Transformations

Ammar Daskin·May 10, 2025

In this paper, we present a framework for modeling quantum recurrent neural networks (RNNs) and their enhanced version, long short-term memory (LSTM) networks using the core ideas presented by Linden et al. (2009), where the entangling and disentangl...

Quantum Physicscs.LG

A Pseudo-Unitary Version of Schwinger's Symbolism of Atomic Measurements and a Prospect for a New Relativistic Quantum Information Theory

J. G. Cardoso·May 10, 2025

The measurement processes that are traditionally described within the realm of non-relativistic quantum mechanics are transcribed into the covariant framework of Cartan's space, the four-valued representation space of the restricted conformal group f...

Quantum Physics

Quantum Algorithm for Structure-Based Virtual Drug Screening Using Classical Force Fields

Pei-Kun Yang·May 10, 2025

Structure-based virtual screening must address a combinatorial explosion arising from up to 10^60 drug-like molecules, multiple conformations of proteins and ligands, and all possible spatial translations and rotations of ligands within the binding p...

Physics

Structure theorem for quantum replacer codes

Eric Chitambar, Sarah Hagen, D. Kribs +2 more·May 10, 2025

Quantum replacer codes are codes that can be protected from errors induced by a given set of quantum replacer channels, an important class of quantum channels that includes the erasures of subsets of qubits that arise in quantum error correction. We ...

PhysicsMathematics

Protected Symmetrical Superconducting Qubit Based on Quantum Flux Parametron

Kian Rafati Sajedi, Mojtaba Hosseinpour Choubi, M. Fardmanesh·May 10, 2025

Conventional Quantum Flux Parametrons (QFPs) have historically been used for storing classical bits in Josephson junction-based computers. In this work, we propose a novel QFP-based topology dubbed"Degenerium"qubit, to process and compute quantum inf...

Physics

Manipulating the topological spin of Majoranas

Stijn R. de Wit, Emre Duman, A. Mert Bozkurt +2 more·May 9, 2025

The non-Abelian exchange statistics of Majorana zero modes make them interesting for both technological applications and fundamental research. Unlike their non-Abelian counterpart, the Abelian contribution, $e^{iθ}$, where $θ$ is directly related to ...

Mesoscale Physicscond-mat.supr-conQuantum Physics

Entanglement dynamics and Page curves in random permutation circuits

Dávid Szász-Schagrin, Michele Mazzoni, Bruno Bertini +2 more·May 9, 2025

The characterization of ensembles of many-qubit random states and their realization via quantum circuits are crucial tasks in quantum-information theory. In this work, we study the ensembles generated by quantum circuits that randomly permute the com...

cond-mat.stat-mechQuantum Physics

Non-degenerate pumping of superconducting resonator parametric amplifier with evidence of phase-sensitive amplification

Songyuan Zhao, Stafford Withington, Christopher Thomas·May 9, 2025

Superconducting resonator parametric amplifiers are potentially important components for a wide variety of fundamental physics experiments and utilitarian applications. We propose and realise an operating scheme that achieves amplification through th...

Quantum Physicsastro-ph.IMcond-mat.supr-con

Algebraic Topology Principles behind Topological Quantum Error Correction

Xiang Zou, Hoi-Kwong Lo·May 9, 2025

Quantum error correction (QEC) is crucial for realizing scalable quantum technologies, and topological quantum error correction (TQEC) has emerged as the most experimentally advanced paradigm of QEC. Existing homological and topological code construc...

Quantum PhysicsMathematical Physics

Variational quantum algorithms for permutation-based combinatorial problems: Optimal ansatz generation with applications to quadratic assignment problems and beyond

Dylan Laplace Mermoud, Andrea Simonetto, Sourour Elloumi·May 9, 2025

We present a quantum variational algorithm based on a novel circuit that generates all permutations that can be spanned by one- and two-qubits permutation gates. The construction of the circuits follows from group-theoretical results, most importantl...

Quantum Physicsmath.OC

Subjective nature of path information in quantum mechanics

Xinhe Jiang, Armin Hochrainer, Jaroslav Kysela +4 more·May 9, 2025

Common sense suggests that a particle must have a definite origin if its full path information is available. In quantum mechanics, the knowledge of path information is captured through the well-established duality relation between path distinguishabi...

Quantum Physicsphysics.optics
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