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Linear mixed-effects models are commonly used to analyze clustered data structures. There are numerous packages to fit these models in R and conduct likelihood-based inference. The implementation of resampling-based procedures for inference…

统计方法学 · 统计学 2021-06-15 Adam Loy , Jenna Korobova

We study multi-loop conformal integrals for four-point correlators of planar ${\cal N}=4$ super-Yang-Mills theory, and in particular those contributing to Coulomb branch amplitudes in the ten-dimensional lightlike limit, where linear…

高能物理 - 理论 · 物理学 2025-10-16 Song He , Xuhang Jiang , Jiahao Liu , Yao-Qi Zhang

We demonstrate that various aspects of Conformal Field Theory are amenable to machine learning. Relatively modest feed-forward neural networks are able to distinguish between scale and conformal invariance of a three-point function and…

高能物理 - 理论 · 物理学 2020-07-21 Heng-Yu Chen , Yang-Hui He , Shailesh Lal , M. Zaid Zaz

In this talk we demonstrate the results of application of the perturbative effective theory formalism developed in recent papers to the calculation of $\pi N$ elastic scattering amplitude. Restrictions on the contributing resonance…

高能物理 - 唯象学 · 物理学 2009-11-10 K. Semenov-Tian-Shanski , A. Vereshagin , V. Vereshagin

We consider the issue of performing accurate small sample inference in beta autoregressive moving average model, which is useful for modeling and forecasting continuous variables that assumes values in the interval $(0,1)$. The inferences…

统计计算 · 统计学 2017-02-16 Bruna Gregory Palm , Fábio M. Bayer

We propose a novel approach to study conformal field theories (CFTs) in general dimensions. In the conformal bootstrap program, one usually searches for consistent CFT data that satisfy crossing symmetry. In the new approach, we reverse the…

高能物理 - 理论 · 物理学 2018-01-19 Wenliang Li

The magnetic line defect in the $O(N)$ model gives rise to a non-trivial one-dimensional defect conformal field theory of theoretical and experimental value. This model is considered here in $d=4-\varepsilon$ and the full spectrum of defect…

高能物理 - 理论 · 物理学 2025-08-26 Jake Belton , Nadav Drukker , Ziwen Kong , Andreas Stergiou

For expansions in one-dimensional conformal blocks, we provide a rigorous link between the asymptotics of the spectral density of exchanged primaries and the leading singularity in the crossed channel. Our result has a direct application to…

高能物理 - 理论 · 物理学 2018-01-17 Jiaxin Qiao , Slava Rychkov

This article deals with nonrelativistic study of a D-dimensional superintegrable system, which generalizes the ordinary isotropic oscillator system. The coefficients for the expansion between the hyperspherical and Cartesian bases…

量子物理 · 物理学 2014-11-18 Ye. M. Hakobyan , G. S. Pogosyan , A. N. Sissakian

The conformal bootstrap hypothesis is a powerful idea in theoretical physics which has led to spectacular predictions in the context of critical phenomena. It postulates an explicit expression for the correlation functions of a conformal…

概率论 · 数学 2020-11-12 Colin Guillarmou , Antti Kupiainen , Rémi Rhodes , Vincent Vargas

We apply an asymptotic bootstrap estimate method to the non-perturbative study of unitary matrix integrals. The method combines exact recursion relations with asymptotic control of large modes to achieve very high numerical precision…

高能物理 - 理论 · 物理学 2026-02-24 David Berenstein , João Rodrigues , Victor A. Rodriguez

In this work we apply the lightcone bootstrap to a four-point function of scalars in two-dimensional conformal field theory. We include the entire Virasoro symmetry and consider non-rational theories with a gap in the spectrum from the…

高能物理 - 理论 · 物理学 2021-11-10 Carlos Cardona , Cynthia Keeler , William Munizzi

We consider Hamiltonians associated with 3 dimensional conformally flat spaces, possessing 2, 3 and 4 dimensional isometry algebras. We use the conformal algebra to build additional {\em quadratic} first integrals, thus constructing a large…

可精确求解与可积系统 · 物理学 2020-05-20 Allan P. Fordy , Qing Huang

We show that the scaling dimensions of lowest operators in conformal field theories (CFTs) can be isolated in small and closed regions from single correlator bootstrap. We find the conserved currents play crucial roles in bootstrapping the…

高能物理 - 理论 · 物理学 2019-09-11 Zhijin Li , Ning Su

We describe the volume dependence of matrix elements of local fields to all orders in inverse powers of the volume (i.e. only neglecting contributions that decay exponentially with volume). Using the scaling Lee-Yang model and the Ising…

高能物理 - 理论 · 物理学 2008-11-26 B. Pozsgay , G. Takacs

We develop a semiclassical framework to determine scaling dimensions of neutral composite operators in scalar conformal field theories. For the critical Ising $\lambda\phi^4$ theory in $d=4-\epsilon$, we obtain the full spectrum of…

高能物理 - 理论 · 物理学 2025-11-12 Oleg Antipin , Jahmall Bersini , Jacob Hafjall , Giulia Muco , Francesco Sannino

We consider the numerical approximation of variational problems with orthotropic growth, that is those where the integrand depends strongly on the coordinate directions with possibly different growth in each direction. Under realistic…

数值分析 · 数学 2023-12-27 Anna Kh. Balci , Lars Diening , Abner J. Salgado

Precision matrix, which is the inverse of covariance matrix, plays an important role in statistics, as it captures the partial correlation between variables. Testing the equality of two precision matrices in high dimensional setting is a…

统计方法学 · 统计学 2018-10-23 Mingjuan Zhang , Yong He , Cheng Zhou , Xinsheng Zhang

We show how to refine conformal block expansion convergence estimates from hep-th/1208.6449. In doing so we find a novel explicit formula for the 3d conformal blocks on the real axis.

高能物理 - 理论 · 物理学 2016-02-17 Slava Rychkov , Pierre Yvernay

We study the 2-dimensional Ising model at critical temperature on a simply connected subset $\Omega_{\delta}$ of the square grid $\delta\mathbb{Z}^{2}$. The scaling limit of the critical Ising model is conjectured to be described by…

数学物理 · 物理学 2018-11-26 Reza Gheissari , Clément Hongler , S. C. Park