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pro vyhledávání: '"Szabados, Laszlo B."'
Autor:
Szabados, László B.
Penrose's Spin Geometry Theorem is extended further, from $SU(2)$ and $E(3)$ (Euclidean) to $E(1,3)$ (Poincar\'e) invariant elementary quantum mechanical systems. The Lorentzian spatial distance between any two non-parallel timelike straight lines of
Externí odkaz:
http://arxiv.org/abs/2309.06150
Autor:
Szabados, László B.
Publikováno v:
Foundations of Physics (2022) 52:102
The spin geometry theorem of Penrose is extended from $SU(2)$ to $E(3)$ (Euclidean) invariant elementary quantum mechanical systems. Using the natural decomposition of the total angular momentum into its spin and orbital parts, the \emph{distance} be
Externí odkaz:
http://arxiv.org/abs/2203.04827
Autor:
Szabados, László B.
Publikováno v:
Foundations of Physics (2022) 52:96
In the traditional formalism of quantum mechanics, a simple direct proof of (a version of) the Spin Geometry Theorem of Penrose is given; and the structure of a model of the `space of the quantum directions', defined in terms of elementary $SU(2)$-in
Externí odkaz:
http://arxiv.org/abs/2112.14538
Autor:
Szabados, László B
Publikováno v:
Journal of Mathematical Physics, vol 64, 032103 (2023)
Complex techniques of general relativity are used to determine \emph{all} the states in the two and three dimensional momentum spaces in which the equality holds in the uncertainty relations for the non-commuting basic observables of Euclidean invari
Externí odkaz:
http://arxiv.org/abs/2111.11876
Autor:
Szabados, László B.
Publikováno v:
Journal of Mathematical Physics, vol 64, 032104 (2023)
Complex and spinorial techniques of general relativity are used to determine all the states of the $SU(2)$ invariant quantum mechanical systems in which the equality holds in the uncertainty relations for the components of the angular momentum vector
Externí odkaz:
http://arxiv.org/abs/2106.08695
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Autor:
Szabados, László B, Tod, Paul
A review is given of the various approaches to and expressions for total energy-momentum and mass in the presence of a positive cosmological constant in Einstein's field equations, together with a discussion of the key conceptual questions, main idea
Externí odkaz:
http://arxiv.org/abs/1808.09265
Autor:
Szabados, László B.
Publikováno v:
General Relativity and Gravitation (2018) {\bf 50} 34
It is shown that in the Einstein-conformally coupled Higgs--Maxwell system with Friedman-Robertson-Walker symmetries the energy density of the Higgs field has stable local minimum only if the mean curvature of the $t={\rm const}$ hypersurfaces is les
Externí odkaz:
http://arxiv.org/abs/1802.04401
Autor:
Szabados, László B., Wolf, György
Publikováno v:
General Relativity and Gravitation, (2018) 50:136
The dynamics of Einstein-conformally coupled Higgs field (EccH) system is investigated near the initial singularities in the presence of Friedman-Robertson--Walker symmetries. We solve the field equations asymptotically up to fourth order near the si
Externí odkaz:
http://arxiv.org/abs/1802.00774
Autor:
Szabados, László B
The classical Einstein-Standard Model system with conformally invariant coupling of the Higgs field to gravity is investigated in nearly Schwarzschild black holes. We show that, in the presence of Kantowski-Sachs symmetries, there is a finite critica
Externí odkaz:
http://arxiv.org/abs/1605.04811