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If we admit that quantum mechanics (QM) is universal theory, then QM should contain also some description of classical mechanical systems. The presented text contains description of two different ways how the mathematical description of…

数学物理 · 物理学 2020-07-28 Pavel Bóna

I review results from recent investigations of anomalies in fermion--Yang Mills systems in which basic notions from noncommutative geometry (NCG) where found to naturally appear. The general theme is that derivations of anomalies from…

高能物理 - 理论 · 物理学 2025-01-30 Edwin Langmann

Non-invertible symmetries of a quantum field theory (QFT) are a natural generalization of unitary symmetries, but in which the product of operators does not satisfy a group multiplication law. We show that such symmetry operations on states…

高能物理 - 理论 · 物理学 2026-05-08 Jonathan J. Heckman , Rebecca J. Hicks , Chitraang Murdia

Quantum computing with qudits, quantum systems with $d > 2$ levels, offers a powerful extension beyond qubits, expanding the computational possibilities of quantum systems, allowing the simplification of the implementation of several…

量子物理 · 物理学 2024-10-10 Francesco Pudda , Mario Chizzini , Luca Crippa

We determine the anomalous dimension matrix for the transversity operator mixing into total derivative operators in the limit of a large number of quark flavors $n_f$ to fourth order in the strong coupling $\alpha_s$ in the…

高能物理 - 唯象学 · 物理学 2022-05-23 S. Van Thurenhout

Three-loop counterterms for the Standard Model (SM) revealed that the matrix of anomalous dimensions ($\gamma$) of quarks is divergent in the $d \to 4$ limit unless a carefully chosen non-Hermitian square-root of $Z$ matrix is used in the…

高能物理 - 唯象学 · 物理学 2021-10-04 Adrian Lewandowski

Quantum superalgebras $su_{q}(m\mid n)$ are studied in the framework of $R$-matrix formalism. Explicit parametrization of $L^{(+)}$ and $L^{(-)}$ matrices in terms of $su_{q}(m\mid n)$ generators are presented. We also show that quantum…

高能物理 - 理论 · 物理学 2009-10-22 D. Chang , I. Phillips , Lev Rozansky

Quantum neural network architectures that have little-to-no inductive biases are known to face trainability and generalization issues. Inspired by a similar problem, recent breakthroughs in machine learning address this challenge by…

We establish a connection between oriented matroid theory and loop quantum gravity in (2+2) (two time and two space dimensions) and 8-dimensions. We start by observing that supersymmetry implies that the structure constants of the real…

高能物理 - 理论 · 物理学 2014-08-28 J. A. Nieto

Matrix multiplication is a fundamental classical computing operation whose efficiency becomes a major challenge at scale, especially for machine learning applications. Quantum computing, with its inherent parallelism and exponential storage…

量子物理 · 物理学 2026-02-10 Jiaqi Yao , Ding Liu

In topological quantum computation the geometric details of a particle trajectory are irrelevant; only the topology matters. Taking this one step further, we consider a model of computation that disregards even the topology of the particle…

量子物理 · 物理学 2011-06-03 Stephen P. Jordan

In this paper we consider the possibility of application of the quantum inverse scattering method for studying the superconformal field theory and it's integrable perturbations. The classical limit of the considered constructions is based…

高能物理 - 理论 · 物理学 2021-09-28 Petr P. Kulish , Anton M. Zeitlin

We elaborate an approach to quantum fluctuations of angular momentum based on the diagonalization of the covariance matrix in two versions: real symmetric and complex Hermitian. At difference with previous approaches this is SU(2) invariant…

量子物理 · 物理学 2009-04-28 Ángel Rivas , Alfredo Luis

Partial tomography, which focuses on reconstructing reduced density matrices (RDMs), has emerged as a promising approach for characterizing complex quantum systems, particularly when full state tomography is impractical. Recently,…

量子物理 · 物理学 2024-10-18 Chao Wei , Tao Xin

One can introduce so-called {\em Plain Mechanics} having an {\bf operator realization}. Then the set of one-dimension representations of this operator realization may be identified with the Classical Mechanics. Different irreducible…

funct-an · 数学 2008-02-03 Vladimir V. Kisil

In relativistic quantum constraint mechanics the state of a physical system is constrained to a 3-dimensional subspace of Minkowski 4-space. Fourier transformation can be used to relate this state between constraint spaces in 4-position and…

量子物理 · 物理学 2011-02-01 Robert J. Ducharme

We introduce new representations to formulate quantum mechanics on noncommutative coordinate space, which explicitly display entanglement properties between degrees of freedom of different coordinate components and hence could be called…

高能物理 - 理论 · 物理学 2007-05-23 S. C. Jing , Q. Y. Liu , H. Y. Fan

We extend the differential form representation of N = (n,n) supersymmetric quantum mechanics to the superconformal case. We identify the superalgebras occurring for n = 1,2,4, give necessary and sufficient conditions for their existence,…

高能物理 - 理论 · 物理学 2014-09-12 Andrew Singleton

Quantum computation teaches us that quantum mechanics exhibits exponential complexity. We argue that the standard scientific paradigm of "predict and verify" cannot be applied to testing quantum mechanics in this limit of high complexity.…

量子物理 · 物理学 2012-06-19 Dorit Aharonov , Umesh Vazirani

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