Results 11 to 20 of about 46,999 (250)

The inversion formula and 6j symbol for 3d fermions [PDF]

Journal of High Energy Physics, 2020
In this work we study the 6j symbol of the 3d conformal group for fermionic operators. In particular, we study 4-point functions containing two fermions and two scalars and also those with four fermions.
Soner Albayrak, David Meltzer, David Poland   +2 more
semanticscholar   +1 more source

A Lorentzian inversion formula for defect CFT [PDF]

Journal of High Energy Physics, 2019
We present a Lorentzian inversion formula valid for any defect CFT that extracts the bulk channel CFT data as an analytic function of the spin variable.
P. Liendo, Yannick Linke, V. Schomerus
semanticscholar   +1 more source

A spacetime derivation of the Lorentzian OPE inversion formula [PDF]

Journal of High Energy Physics, 2017
Caron-Huot has recently given an interesting formula that determines OPE data in a conformal field theory in terms of a weighted integral of the four-point function over a Lorentzian region of cross-ratio space.
D. Simmons-Duffin, D. Stanford, E. Witten   +2 more
semanticscholar   +1 more source

A new linear inversion formula for a class of hypergeometric polynomials [PDF]

, 2020
Given complex parameters x, ν, α, β and , consider the infinite lower triangular matrix with elements for , depending on the Hypergeometric polynomials , .
R. Nasri, A. Simonian, F. Guillemin
semanticscholar   +1 more source

Normal Operators for Momentum Ray Transforms, I: The Inversion Formula [PDF]

Journal of Fourier Analysis and Applications
The momentum ray transform Imk\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin ...
Shubham R. Jathar, Manas Kar, V. Krishnan, Vladimir A. Sharafutdinov   +3 more
semanticscholar   +1 more source

Heavy-light bootstrap from Lorentzian inversion formula [PDF]

, 2019
We study heavy-light four-point function by employing Lorentzian inversion formula, where the conformal dimension of heavy operator is as large as central charge C T → ∞ .
Yue Li
semanticscholar   +1 more source

A crossing-symmetric OPE inversion formula [PDF]

Journal of High Energy Physics, 2018
We derive a Lorentzian OPE inversion formula for the principal series of sl(2, ℝ). Unlike the standard Lorentzian inversion formula in higher dimensions, the formula described here only applies to fully crossing-symmetric four-point functions and makes ...
D. Mazáč
semanticscholar   +1 more source

The broken ray transform: additional properties and new inversion formula [PDF]

Inverse Problems, 2019
The significance of the broken ray transform (BRT) is due to its occurrence in a number of modalities spanning optical, x-ray, and nuclear imaging. When data are indexed by the scatter location, the BRT is both linear and shift invariant.
M. R. Walker, J. O’Sullivan
semanticscholar   +1 more source

Joint Decision-Directed Channel and Noise-Variance Estimation for MIMO OFDM/SDMA Systems Based on Expectation-Conditional Maximization [PDF]

, 2011
A joint channel impulse response (CIR) and noise-variance estimation scheme is proposed for multiuser multiple-input–multiple-output (MIMO) orthogonal frequency-division multiplexing/space-division multiple access (OFDM/SDMA) systems, which is based on ...
Hanzo, Lajos, Mu, Xiaomin, Zhang, Jiankang   +2 more
core   +1 more source

Massive fermions with low mobility in antiferromagnet orthorhombic CuMnAs single crystals

, 2017
We report the physical properties of orthorhombic o-CuMnAs single crystal, which is predicted to be a topological Dirac semimetal with magnetic ground state and inversion symmetry broken. o-CuMnAs exhibits an antiferromagnetic transition with TN ~ 312 K.
Lei, Hechang, Sun, Shanshan, Zhang, Xiao
core   +1 more source