Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Florian Girelli"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-28 (2023)
Abstract We present a Sugawara-type construction for boundary charges in 4d BF theory and in a general family of related TQFTs. Starting from the underlying current Lie algebra of boundary symmetries, this gives rise to well-defined quadratic charges
Externí odkaz:
https://doaj.org/article/a1c782b3c8a242c8af51bb636d91b97e
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-29 (2021)
Abstract Kitaev’s lattice models are usually defined as representations of the Drinfeld quantum double D(H) = H ⋈ H *op, as an example of a double cross product quantum group. We propose a new version based instead on M(H) = H cop ⧑ H as an exa
Externí odkaz:
https://doaj.org/article/c8a272fbfbe74821b4fb1324a1929c64
Publikováno v:
Symmetry, Vol 3, Iss 3, Pp 389-401 (2011)
From the physics point of view, time is now best described through General Relativity as part of space-time, which is a dynamical object encoding gravity. Time possesses also some intrinsic irreversibility due to thermodynamics and quantum mechanical
Externí odkaz:
https://doaj.org/article/6700ec3e17cd4cc9861bf85d2f4da552
Publikováno v:
Symmetry, Integrability and Geometry: Methods and Applications, Vol 8, p 098 (2012)
Research during the last decade demonstrates that effects originating on the Planck scale are currently being tested in multiple observational contexts. In this review we discuss quantum gravity phenomenological models and their possible links to loo
Externí odkaz:
https://doaj.org/article/4d258a90cbb74d85b3571410121f6254
Autor:
Florian Girelli
Publikováno v:
Symmetry, Integrability and Geometry: Methods and Applications, Vol 6, p 074 (2010)
Different deformations of the Poincaré symmetries have been identified for various non-commutative spaces (e.g. κ-Minkowski, sl(2,R), Moyal). We present here the deformation of the Poincaré symmetries related to Snyder space-time. The notions of s
Externí odkaz:
https://doaj.org/article/da0180eed8d24e1ebfcaf3865ec6a1a2
Publikováno v:
Physical Review D. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cc659969ef92460b04600e3aee06f6f
https://doi.org/10.1103/physrevd.107.026014
https://doi.org/10.1103/physrevd.107.026014
Autor:
Hank Chen, Florian Girelli
Publikováno v:
Physical Review
The gauge symmetry and shift/translational symmetry of a 3D BF action, which are associated to a pair of dual Lie algebras, can be combined to form the Drinfel’d double. This combined symmetry is the gauge symmetry of the Chern-Simons action, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82b186fab79560eed6fb90094a25b242
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Autor:
Florian Girelli, Panagiotis Tsimiklis
Publikováno v:
Physical Review
We study the discretization of a Poincar\'e/Euclidean BF theory. Upon the addition of a boundary term, this theory is equivalent to the BFCG theory defined in terms of the Poincar\'e/Euclidean 2-group. At an intermediate step in the discretization, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da24fdb13534be9dd19902962ae70e26
https://doi.org/10.1103/physrevd.106.046003
https://doi.org/10.1103/physrevd.106.046003
Publikováno v:
Physical Review D. 105
Recently, a new choice of variables was identified to understand how the quantum group structure appeared in three-dimensional gravity [1]. These variables are introduced via a canonical transformation generated by a boundary term. We show that this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73738a05fd2e972741d395e6c727fb59
https://doi.org/10.1103/physrevd.105.044003
https://doi.org/10.1103/physrevd.105.044003
We present the first numerical calculation of the 4D Euclidean spin foam vertex amplitude for vertices with hypercubic combinatorics. Concretely, we compute the amplitude for coherent boundary data peaked on cuboid and frustum shapes. We present the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c170234280384bedafb863deb927936
