Zobrazeno 1 - 10
of 798
pro vyhledávání: '"P. Andronikos"'
Autor:
Andronikos, Theodore
This article introduces a novel Quantum Secret Sharing scheme with $( k, n )$ threshold and endowed with verification capability. The new protocol exploits the power of entanglement and evolves in three phases. The primary novelty of the new protocol
Externí odkaz:
http://arxiv.org/abs/2410.18643
Autor:
Paliathanasis, Andronikos
Publikováno v:
Eur. Phys. J. C 84, 1080 (2024)
The connection between the Equivalence Principle and Noether's theorem was discussed in S. Capozziello and C. Ferrara, Int. J. Geom. Meth. Mod. Phys. 21, 2440014 (2024). However, it is known that the Noether symmetry condition is independent of the e
Externí odkaz:
http://arxiv.org/abs/2410.14568
We solve the gravitational field equations for a static, spherically symmetric spacetime within the framework of the symmetric teleparallel theory of gravity. Specifically, we derive new solutions within the context of power-law $f(Q)$ gravity and th
Externí odkaz:
http://arxiv.org/abs/2410.04513
Autor:
Paliathanasis, Andronikos
Within the framework of symmetric teleparallel $f\left( Q\right) $-gravity for a connection defined in the non-coincidence gauge we derive the Wheeler-DeWitt equation of quantum cosmology. Because the gravitational field equation in $f\left( Q\right)
Externí odkaz:
http://arxiv.org/abs/2409.07755
We revise the cosmological interaction between dark energy and dark matter. More precisely, we focus on models that support compartmentalization or co-existence in the dark sector of the universe. Within the framework of a homogeneous and isotropic,
Externí odkaz:
http://arxiv.org/abs/2409.05348
Autor:
Paliathanasis, Andronikos
This study investigates the geometric linearization of constraint Hamiltonian systems using the Jacobi metric and the Eisenhart lift. We establish a connection between linearization and maximally symmetric spacetimes, focusing on the Noether symmetri
Externí odkaz:
http://arxiv.org/abs/2408.01020
Autor:
Paliathanasis, Andronikos
Symmetric teleparallel $f(Q)$-gravity allows for the presence of a perfect fluid with a tilted velocity in the Kantowski-Sachs geometry. In this dipole model, we consider an ideal gas and we investigate the evolution of the physical parameters. The t
Externí odkaz:
http://arxiv.org/abs/2407.15069
This paper introduces an innovative entanglement-based protocol that accomplishes multiparty quantum private comparison leveraging maximally entangled GHZ3 triplets. The primary motivation is the design of a protocol that can be executed by contempor
Externí odkaz:
http://arxiv.org/abs/2407.05386
Autor:
Paliathanasis, Andronikos
We investigate the dynamics and the phase-space evolution for the scalar nonmetricity cosmology with a Chameleon mechanism. In particular, we consider a spatially flat Friedmann--Lema\^{\i}tre--Robertson--Walker geometry and within the framework of s
Externí odkaz:
http://arxiv.org/abs/2407.05042
Autor:
Paliathanasis, Andronikos, Leon, Genly
The Kasner spacetimes are exact solutions that are self-similar and of significant interest because they can describe the dynamic evolution of kinematic variables near the singularity of the Mixmaster universe. The chaotic behavior of the Mixmaster u
Externí odkaz:
http://arxiv.org/abs/2406.04563