Zobrazeno 1 - 10
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pro vyhledávání: '"FABBRI, LUCA"'
Autor:
Fabbri, Luca
Publikováno v:
Class.Quant.Grav.41:245005(2024)
We consider the problem of having relativistic quantum mechanics re-formulated with hydrodynamic variables, and specifically the problem of deriving the Mathisson-Papapetrou-Dixon equations from the Dirac equation. The problem will be answered on a g
Externí odkaz:
http://arxiv.org/abs/2411.09651
Publikováno v:
Proc. R. Soc. A 480: 20240349 (2024)
In this work, we shall analyze the necessity of a proper definition of the dual structure for Elko spinors, and singular spinors in general. We examine in detail why the Dirac dual structure fails and it is not functional for these cases, highlightin
Externí odkaz:
http://arxiv.org/abs/2408.16196
Autor:
Fabbri, Luca, Migliaccio, Ludovico, Širvinskytė, Aleksandra, Rizzi, Giacomo, Bondi, Luca, Tamarozzi, Cristiano, Weber, Stefan A. L., Fraboni, Beatrice, Glowacki, Eric Daniel, Cramer, Tobias
Light activated local stimulation and sensing of biological cells offers enormous potential for minimally invasive bioelectronic interfaces. Organic semiconductors are a promising material class to achieve this kind of transduction due to their optoe
Externí odkaz:
http://arxiv.org/abs/2406.18447
Autor:
Fabbri, Luca
Publikováno v:
J. Phys. A: Math. Theor. 57, 245204 (2024)
We employ the polar re-formulation of spinor fields to see in a new light their classification into regular and singular spinors, these last also called flag-dipoles, further splitting into the sub-classes of dipoles and flagpoles: in particular, we
Externí odkaz:
http://arxiv.org/abs/2404.13100
Autor:
Fabbri, Luca
Publikováno v:
Foundations 4, 134 (2024)
We consider the Dirac field in polar formulation, showing that when torsion is taken in effective approximation the theory has the thermodynamic properties of a van der Waals gas, that when the limit of zero chiral angle is taken the theory reduces t
Externí odkaz:
http://arxiv.org/abs/2402.10976
Autor:
Fabbri, Luca
Publikováno v:
J.Phys.A:Math.Theor.58,025205(2025)
On differential manifolds with spinor structure, it is possible to express the Euler and Pontryagin currents in terms of tensors that also appear as source in the Dirac equation. It is hence possible to tie concepts rooted in geometry and topology to
Externí odkaz:
http://arxiv.org/abs/2402.10256
Publikováno v:
Lett. Math. Phys. 114, 21 (2024)
We consider the Lie derivative along Killing vector fields of the Dirac relativistic spinors: by using the polar decomposition we acquire the mean to study the implementation of symmetries on Dirac fields. Specifically, we will become able to examine
Externí odkaz:
http://arxiv.org/abs/2310.10678
Autor:
Fabbri, Luca
Publikováno v:
Symmetry:15, 1685 (2023)
We consider the relativistic spinor field theory re-formulated in polar variables so to allow for the interpretation given in terms of fluid variables. After that the dynamics of spinor fields is converted as dynamics of a special type of spin fluid,
Externí odkaz:
http://arxiv.org/abs/2309.00617
Publikováno v:
Eur. Phys. J. Plus 139, 406 (2024)
We consider the Dirac equations in static spherically-symmetric space-times, and we present a type of spinor field whose structure allows the separation of elevation angle and radial coordinate in very general situations. We demonstrate that after su
Externí odkaz:
http://arxiv.org/abs/2304.09291
Autor:
Fabbri, Luca
Publikováno v:
Found.Phys.53,54(2023)
We consider quantum mechanics written in hydrodynamic formulation for the case of relativistic spinor fields to study their velocity: within such a hydrodynamic formulation it is possible to see that the velocity as is usually defined can not actuall
Externí odkaz:
http://arxiv.org/abs/2303.17461