Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Nese Ozdemir"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 7, Pp 1-13 (2023)
Abstract We consider a Weyl–Lorentz-U(1)-invariant gravity model written in terms of a scalar field, electromagnetic field and nonmetricity without torsion and curvature, the so-called symmetric teleparallel geometry, in three dimensions. Firstly,
Externí odkaz:
https://doaj.org/article/fe50d9b3fb7a44f4a110b3cfd7055b3a
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 2, Pp 1-9 (2023)
Abstract We retreat the well-known Einstein–Cartan theory by slightly modifying the covariant derivative of spinor field by investigating double cover of the Lorentz group. We first write the Lagrangian consisting of the Einstein–Hilbert term, Di
Externí odkaz:
https://doaj.org/article/7178ef58dfeb414d99ad95366646aa16
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 4, Pp 1-18 (2020)
Abstract We provide a Lie algebra expansion procedure to construct three-dimensional higher-order Schrödinger algebras which relies on a particular subalgebra of the four-dimensional relativistic conformal algebra. In particular, we reproduce the ex
Externí odkaz:
https://doaj.org/article/d4bf760830a5416bbed2517e125835d7
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 11, Pp 1-21 (2019)
Abstract We provide a systematic analysis of three-dimensional N $$ \mathcal{N} $$ = 2 extended Bargmann superalgebra and its Newton-Hooke, Lifshitz and Schrödinger extensions. These algebras admit invariant non-degenerate bi-linear forms which we u
Externí odkaz:
https://doaj.org/article/feb9205c2095431ca531cbc064889529
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 5, Pp 1-10 (2019)
Abstract We present a three dimensional non-relativistic model of gravity that is invariant under the central extension of the symmetry group that leaves the recently constructed Newtonian gravity action invariant. We show that the model arises from
Externí odkaz:
https://doaj.org/article/dcd5ffc7e2b644909bda56041a1dc113
Autor:
Mahmut Hortacsu, Nese Ozdemir
Publikováno v:
Classical and Quantum Gravity. 12:1221-1227
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56e81536b028c584380139e20f74b41e
https://doi.org/10.1088/0264-9381/12/5/012
https://doi.org/10.1088/0264-9381/12/5/012
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 1, Pp 1-26 (2020)
Abstract We present an explicit detailed theoretical and observational investigation of an anisotropic massive Brans–Dicke (BD) gravity extension of the standard $$\Lambda $$ Λ CDM model, wherein the extension is characterized by two additional de
Externí odkaz:
https://doaj.org/article/bfa7d82089f542bc96127775f89dda0e
Publikováno v:
Scopus-Elsevier
Publons
Publons
We review our previous work on the the calculation of the stress-energy tensor for a scalar particle in the background metric of different types of spherical impulsive, spherical shock and plane impulsive gravitational waves.
an important typogr
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Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d60ac9d8f2605bb09ef0e08c9fd1850f
http://arxiv.org/abs/gr-qc/9809028
http://arxiv.org/abs/gr-qc/9809028
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 5, Pp 1-10 (2017)
Abstract We show that if the $$\alpha $$ α -attractor model is realized by the spontaneous breaking of the scale symmetry, then the stability and the dynamics of the vector field that gauges the scale symmetry can severely constrain the $$\alpha $$
Externí odkaz:
https://doaj.org/article/caf362fa706a46e68c15b108ed2ef06e