Results 21 to 30 of about 115,587 (269)

Conformal symmetry in nuclear structure [PDF]

open access: yesNuclear Physics A, 2021
The purpose of this paper is to introduce the unitary limit as applied in systems of cold atoms into collective states of heavy, even-even nuclei and to identify a related physical example. This is accompanied by the determination of observables of conformal symmetry in nuclear structure.
openaire   +5 more sources

Conformal Symmetries of Spherical Spacetimes [PDF]

open access: yesInternational Journal of Theoretical Physics, 2008
We investigate the conformal geometry of spherically symmetric spacetimes in general without specifying the form of the matter distribution. The general conformal Killing symmetry is obtained subject to a number of integrability conditions. Previous results relating to static spacetimes are shown to be a special case of our solution.
Sunil D. Maharaj, S. Moopanar
openaire   +4 more sources

Conformal symmetries of spacetimes [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2002
The cycle-preserving symmetries for the nine two-dimensional real spaces of constant curvature are collectively obtained within a Cayley-Klein framework. This approach affords a unified and global study of the conformal structure of the three classical Riemannian spaces as well as of the six relativistic and non-relativistic spacetimes (Minkowskian, de
Francisco J. Herranz, Mariano Santander
openaire   +4 more sources

Neutrinos, axions and conformal symmetry [PDF]

open access: yesThe European Physical Journal C, 2008
We demonstrate that radiative breaking of conformal symmetry (and simultaneously electroweak symmetry) in the Standard Model with right-chiral neutrinos and a minimally enlarged scalar sector induces spontaneous breaking of lepton number symmetry, which naturally gives rise to an axion-like particle with some unusual features.
Meissner, K., Nicolai, H.
openaire   +4 more sources

Hidden Conformal Symmetry in Tree-Level Graviton Scattering [PDF]

open access: yes, 2018
We argue that the scattering of gravitons in ordinary Einstein gravity possesses a hidden conformal symmetry at tree level in any number of dimensions. The presence of this conformal symmetry is indicated by the dilaton soft theorem in string theory, and
Loebbert, Florian   +2 more
core   +3 more sources

Dual conformal invariance in the Regge limit [PDF]

open access: yes, 2010
A dual conformal symmetry, analogous to the dual conformal symmetry observed for the scattering amplitudes of N=4 Super Yang-Mills theory, is identified in the Regge limit of QCD.
Gomez, Cesar   +2 more
core   +2 more sources

Accidental symmetries and the conformal bootstrap [PDF]

open access: yesJournal of High Energy Physics, 2016
We study an ${\cal N} = 2$ supersymmetric generalization of the three-dimensional critical $O(N)$ vector model that is described by $N+1$ chiral superfields with superpotential $W = g_1 X \sum_i Z_i^2 + g_2 X^3$. By combining the tools of the conformal bootstrap with results obtained through supersymmetric localization, we argue that this model ...
Chester, Shai   +5 more
openaire   +4 more sources

Extended conformal symmetries [PDF]

open access: yesJournal of Geometry and Physics, 1993
Written in a nice pedagogical style this article provides a rigorous introduction into the subject of \(W\)-algebras. After a brief review of the basic properties of the Virasoro symmetries, the author discusses the most simple example of a higher-spin extension of the Virasoro algebra, namely the \(W_ 3\)-algebra, and further extends the analysis to ...
openaire   +4 more sources

Chiral Scale and Conformal Invariance in 2D Quantum Field Theory [PDF]

open access: yes, 2011
It is well known that a local, unitary Poincare-invariant 2D QFT with a global scaling symmetry and a discrete non-negative spectrum of scaling dimensions necessarily has both a left and a right local conformal symmetry.
Hofman, Diego M., Strominger, Andrew
core   +2 more sources

Quantum diffeomorphisms and conformal symmetry [PDF]

open access: yesPhysical Review D, 1997
We analyze the constraints of general coordinate invariance for quantum theories possessing conformal symmetry in four dimensions. The character of these constraints simplifies enormously on the Einstein universe $R \times S^3$. The $SO(4,2)$ global conformal symmetry algebra of this space determines uniquely a finite shift in the Hamiltonian ...
Emil Mottola   +2 more
openaire   +3 more sources

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