Results 1 to 10 of about 2,100,473 (121)

On conformal field theories with low number of primary fields [PDF]

open access: yesJ.Phys.A42:304009,2009, 2008
Using Verlinde formula and the symmetry of the modular matrix we describe an algorithm to find all conformal field theories with low number of primary fields. We employ the algorithm on up to eight primary fields. Four new conformal field theories are found which do not appear to come from current algebras.
Doron Gepner, Roman Dovgard
arxiv   +5 more sources

Logarithmic Primary Fields in Conformal and Superconformal Field Theory [PDF]

open access: yesNucl.Phys.B722:249-265,2005, 2005
In this note, some aspects of the generalization of a primary field to the logarithmic scenario are discussed. This involves understanding how to build Jordan blocks into the geometric definition of a primary field of a conformal field theory. The construction is extended to N=1,2 superconformal theories. For the N=0,2 theories, the two-point functions
arxiv   +4 more sources

Conformal Properties of Primary Fields in a q-Deformed Theory [PDF]

open access: yesJ.Phys. A25 (1992) L149-L155, 1994
We examine some of the standard features of primary fields in the framework of a $q$-deformed conformal field theory. By introducing a $q$-OPE between the energy momentum tensor and a primary field, we derive the $q$-analog of the conformal Ward identities for correlation functions of primary fields. We also obtain solutions to these identities for the
Oh, C.H., Singh, K.
arxiv   +6 more sources

Primary fields in celestial CFT [PDF]

open access: yesJournal of High Energy Physics, 2019
Abstract The basic ingredient of CCFT holography is to regard four-dimensional amplitudes describing conformal wave packets as two-dimensional conformal correlation functions of the operators associated to external particles. By construction, these operators transform as quasi-primary fields under SL(2, ℂ) conformal symmetry group ...
Angelos Fotopoulos   +2 more
openaire   +4 more sources

Primary field experiences: Critical for primary generalist physical education teachers? [PDF]

open access: yesEuropean Physical Education Review, 2021
Generalist primary teachers teach physical education in many countries, and their preparation has been the subject of attention internationally. While they undertake field experiences as part of their preparation to teach, it is unclear how much of their teaching is focused on physical education.
Frances Murphy   +2 more
openaire   +4 more sources

Confluent primary fields in the conformal field theory [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2010
15 pages. Corrected typos. Proposition 3.1 rewritten.
Hajime Nagoya, Juanjuan Sun
openaire   +4 more sources

Primary singularities of vector fields on surfaces [PDF]

open access: yesGeometriae Dedicata, 2019
Unless another thing is stated one works in the $C^\infty$ category and manifolds have empty boundary. Let $X$ and $Y$ be vector fields on a manifold $M$. We say that $Y$ tracks $X$ if $[Y,X]=fX$ for some continuous function $f\colon M\rightarrow\mathbb R$.
Hirsch, MW, Turiel, FJ
openaire   +5 more sources

Complex Receptive Fields in Primary Visual Cortex [PDF]

open access: yesThe Neuroscientist, 2003
In the early 1960s, Hubel and Wiesel reported the first physiological description of cells in cat primary visual cortex. They distinguished two main cell types: simple cells and complex cells. Based on their distinct response properties, they suggested that the two cell types could represent two consecutive stages in receptive-field construction ...
Martínez, Luis M., Alonso, José-Manuel
openaire   +9 more sources

$sl(2,\mathds{C})\times D$ symmetry and conformal primary basis for massless fields [PDF]

open access: yesPhys. Rev. D 110, 045008 (2024), 2023
Alternative to the embedding formalism, we provide a group theoretic approach to the conformal primary basis for the massless field with arbitrary helicity. To this end, we first point out that $sl(2,\mathds{C})$ isometry gets enhanced to $sl(2,\mathds{C})\times D$ symmetry for the solution space of the massless field with arbitrary helicity.
arxiv   +1 more source

Neural Field Model of Receptive Field Restructuring in Primary Visual Cortex [PDF]

open access: yesNeural Computation, 2001
Receptive fields (RF) in the visual cortex can change their size depending on the state of the individual. This reflects a changing visual resolution according to different demands on information processing during drowsiness. So far, however, the possible mechanisms that underlie these size changes have not been tested rigorously.
Suder, Katrin   +2 more
openaire   +3 more sources

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