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We introduce and analyze a novel quantum machine learning model motivated by convolutional neural networks. Our quantum convolutional neural network (QCNN) makes use of only $O(\log(N))$ variational parameters for input sizes of $N$ qubits,…

量子物理 · 物理学 2019-10-23 Iris Cong , Soonwon Choi , Mikhail D. Lukin

In this letter I stress the role of causal reversibility (time-symmetry), together with causality and locality, in the justification of the quantum formalism. Firstly, in the algebraic quantum formalism, I show that the assumption of…

量子物理 · 物理学 2011-10-27 Francois David

Quantum algorithms and protocols are often presented as quantum circuits for a better understanding. We give a list of equivalence rules which can help in the analysis and design of quantum circuits. As example applications we study quantum…

量子物理 · 物理学 2011-10-14 Juan Carlos Garcia-Escartin , Pedro Chamorro-Posada

Quantum error correction codes (QECCs) are critical for realizing reliable quantum computing by protecting fragile quantum states against noise and errors. However, limited research has analyzed the noise resilience of QECCs to help select…

量子物理 · 物理学 2025-04-22 Avimita Chatterjee , Subrata Das , Swaroop Ghosh

Chain-of-thought (CoT) decoding enables language models to improve reasoning performance at the cost of high generation latency in decoding. Recent proposals have explored variants of contemplation tokens, a term we introduce that refers to…

计算与语言 · 计算机科学 2024-12-18 Jeffrey Cheng , Benjamin Van Durme

This work shows that minimizing the depth of a quantum circuit composed of commuting operations reduces to a vertex coloring problem on an appropriately constructed graph, where gates correspond to vertices and edges encode…

量子物理 · 物理学 2026-02-11 Hochang Lee , Kyung Chul Jeong , Panjin Kim

Given two elements of a vector space acted on by a reductive group, we ask whether they lie in the same orbit, and if not, whether one lies in the orbit closure of the other. We develop techniques to optimize the orbit and orbit closure…

代数几何 · 数学 2020-06-23 Eunice Sukarto

We address the problem, not of the determination -- which usually needs numerical methods -- but of an accurate analytical estimation of the distance of a raw elasticity tensor to cubic symmetry and to orthotropy. We point out that there…

经典物理 · 物理学 2022-06-08 Rodrigue Desmorat , Boris Kolev

We analyze the problem of a quantum computer in a correlated environment protected from decoherence by QEC using a perturbative renormalization group approach. The scaling equation obtained reflects the competition between the dimension of…

量子物理 · 物理学 2007-05-23 E. Novais , Eduardo R. Mucciolo , Harold U. Baranger

Advancements in Quantum Computing (QC) and Neural Combinatorial Optimization (NCO) represent promising steps in tackling complex computational challenges. On the one hand, Variational Quantum Algorithms such as QAOA can be used to solve a…

量子物理 · 物理学 2024-05-14 Georg Kruse , Rodrigo Coehlo , Andreas Rosskopf , Robert Wille , Jeanette Miriam Lorenz

A causal, non-Hermitian, renormalizable, local, unitary and Lorentz convariant formulation of Quantum Theory (QT) (= Quantum Mechanics (QM) and Quantum Field Theory (QFT)) is developed which is free of formalistic problems we face in the…

高能物理 - 唯象学 · 物理学 2011-07-19 F. Kleefeld

The goal of motion tomography is to recover a description of a vector flow field using information on the trajectory of a sensing unit. In this paper, we develop a predictor corrector algorithm designed to recover vector flow fields from…

最优化与控制 · 数学 2021-02-09 Benjamin P. Russo , Rushikesh Kamalapurkar , Dongsik Chang , Joel A. Rosenfeld

Quantum computers have the potential of solving certain problems exponentially faster than classical computers. Recently, Harrow, Hassidim and Lloyd proposed a quantum algorithm for solving linear systems of equations: given an $N\times{N}$…

量子物理 · 物理学 2014-02-19 Jian Pan , Yudong Cao , Xiwei Yao , Zhaokai Li , Chenyong Ju , Xinhua Peng , Sabre Kais , Jiangfeng Du

Optimizing parameterized quantum circuits promises efficient use of near-term quantum computers to achieve the potential quantum advantage. However, there is a notorious tradeoff between the expressibility and trainability of the parameter…

量子物理 · 物理学 2021-10-22 Xin Wang

Formalisms inspired by Quantum theory have been used in Cognitive Science for decades. Indeed, Quantum-Like (QL) approaches provide descriptive features that are inherently suitable for perception, cognition, and decision processing. A…

机器人学 · 计算机科学 2021-07-07 Davide Lanza , Paolo Solinas , Fulvio Mastrogiovanni

Several classes of quantum circuits have been shown to provide a quantum computational advantage under certain assumptions. The study of ever more restricted classes of quantum circuits capable of quantum advantage is motivated by possible…

量子物理 · 物理学 2024-04-10 Michael de Oliveira , Luís S. Barbosa , Ernesto F. Galvão

Modern adiabatic quantum computers (AQC) are already used to solve difficult combinatorial optimisation problems in various domains of science. Currently, only a few applications of AQC in computer vision have been demonstrated. We review…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Vladislav Golyanik , Christian Theobalt

A two-parameter quantum algebra $U_{qp}({\rm u}_2)$ is briefly investigated in this paper. The basic ingredients of a model based on the $U_{qp}({\rm u}_2)$ symmetry, the $qp$-rotator model, are presented in detail. Some general tendencies…

核理论 · 物理学 2009-10-30 R. Barbier , M. Kibler

We propose a type-theoretic framework for describing and proving properties of quantum computations, in particular those presented as quantum circuits. Our proposal is based on an observation that, in the polymorphic type system of Coq,…

编程语言 · 计算机科学 2026-05-12 Jacques Garrigue , Takafumi Saikawa

We investigate a novel class of quantum error correcting codes to correct errors on both qubits and higher-state quantum systems represented as qudits. These codes arise from an original graph-theoretic representation of sets of quantum…

量子物理 · 物理学 2022-04-13 Robert Vandermolen , Duncan Wright