Results 21 to 30 of about 35,653 (272)

A CFT interpretation of cosmological correlation functions in α−vacua in de-Sitter space

open access: yesJournal of High Energy Physics, 2023
De-Sitter(dS) space allows for a generalized class of vacua, known as α–vacua, described by some parameters. The Bunch-Davies (BD) vacuum is a point in this parameter space. The cosmological correlation function in BD vacuum in four dimensions and can be
Sachin Jain   +4 more
doaj   +1 more source

Modular differential equations with movable poles and admissible RCFT characters

open access: yesJournal of High Energy Physics, 2023
Studies of modular linear differential equations (MLDE) for the classification of rational CFT characters have been limited to the case where the coefficient functions (in monic form) have no poles, or poles at special points of moduli space.
Arpit Das   +3 more
doaj   +1 more source

Conformal Mechanics and the Virasoro Algebra [PDF]

open access: yes, 1999
We demonstrate that any scale-invariant mechanics of one variable exhibits not only 0+1 conformal symmetry, but also the symmetries of a full Virasoro algebra. We discuss the implications for the adS/CFT correspondence.Comment: 9 pages, LaTeX.
Kumar, J.
core   +2 more sources

Conformal bootstrap in momentum space at finite volume

open access: yesJournal of High Energy Physics, 2023
In this paper, we Fourier transform the Wightman function concerning energy and angular momentum on the S D−1 spatial slice in radial quantization in D = 2, 3 dimensions.
Kanade Nishikawa
doaj   +1 more source

Magic fermions: Carroll and flat bands

open access: yesJournal of High Energy Physics, 2023
The Carroll algebra is constructed as the c → 0 limit of the Poincare algebra and is associated to symmetries on generic null surfaces. In this paper, we begin investigations of Carrollian fermions or fermions defined on generic null surfaces. Due to the
Arjun Bagchi   +4 more
doaj   +1 more source

Shift operators from the simplex representation in momentum-space CFT

open access: yesJournal of High Energy Physics, 2023
We derive parametric integral representations for the general n-point function of scalar operators in momentum-space conformal field theory. Recently, this was shown to be expressible as a generalised Feynman integral with the topology of an (n − 1 ...
Francesca Caloro, Paul McFadden
doaj   +1 more source

Consistency Relations for the Conformal Mechanism [PDF]

open access: yes, 2013
We systematically derive the consistency relations associated to the non-linearly realized symmetries of theories with spontaneously broken conformal symmetry but with a linearly-realized de Sitter subalgebra.
Creminelli, Paolo   +3 more
core   +1 more source

Relations among polarized and unpolarized splitting functions beyond leading order [PDF]

open access: yes, 1998
The role of various symmetries in the evaluation of splitting functions and coefficient functions is discussed. The scale invariance in hard processes is known to be a guiding tool to understand the dynamics.
Blümlein, Johannes   +2 more
core   +1 more source

Non-linear Realizations of Conformal Symmetry and Effective Field Theory for the Pseudo-Conformal Universe [PDF]

open access: yes, 2012
The pseudo-conformal scenario is an alternative to inflation in which the early universe is described by an approximate conformal field theory on flat, Minkowski space.
A. Gover   +36 more
core   +1 more source

A scaling limit for line and surface defects

open access: yesJournal of High Energy Physics, 2022
We study symmetry-breaking line defects in the Wilson-Fisher theory with O(2N + 1) global symmetry near four dimensions and symmetry-preserving surface defects in a cubic model with O(2N) global symmetry near six dimensions.
D. Rodriguez-Gomez
doaj   +1 more source

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