Zobrazeno 1 - 10
of 7 361
pro vyhledávání: '"Akhmedov AT"'
Autor:
Akhmedov, E. T., Zavgorodny, P. S.
The Schwinger's current appearing due to the breakdown of the vacuum in the strong constant electric pulse background is well known and calculated in many places. It appears due to the amplification of the zero-point fluctuations. However, we find th
Externí odkaz:
http://arxiv.org/abs/2409.00684
Autor:
Akhmedov, Azer, Ismailov, Vugar
In this paper we discuss the problem of interpolation on straight lines by linear combinations of ridge functions with fixed directions. By using some geometry and/or systems of linear equations, we constructively prove that it is impossible to inter
Externí odkaz:
http://arxiv.org/abs/2408.06443
We use different methods to calculate the imaginary part of the gravitational effective action due to a massless scalar field, with a view on perturbative vs. non-pertubative and the results of ArXiv:2305.18521.
Comment: 9 pages
Comment: 9 pages
Externí odkaz:
http://arxiv.org/abs/2407.06601
Autor:
Akhmedov, Azer
We produce an example of an irreducible discrete subgroup in the product $SL(2,\R)\times SL(2,\R)$ which is not a lattice. This answers a question asked in [15].
Externí odkaz:
http://arxiv.org/abs/2406.12107
Autor:
Akhmedov, Evgeny, Pospelov, Maxim
We consider primordial nucleosynthesis in the presence of hypothetical quasi-stable doubly charged particles. Existence of $X^{--}$ with macroscopic lifetimes will lead to the formation of its bound states with $^4$He and other light elements, signif
Externí odkaz:
http://arxiv.org/abs/2405.06019
Autor:
Akhmedov, Evgeny, Trautner, Andreas
Finding out if neutrinos are Dirac or Majorana particles is known to be extremely difficult due to the smallness of neutrino mass and the fact that in the limit $m_\nu=0$ both Dirac and Majorana neutrinos become Weyl particles, i.e. are indistinguish
Externí odkaz:
http://arxiv.org/abs/2402.05172
Publikováno v:
Phys. Lett. B 852 (2024) 138616
We show that the doubly charged scalar from the $SU(2)_R$-triplet Higgs field in the Left-Right Symmetric Model has its mass governed by a hidden symmetry so that its value can be much lower than the $SU(2)_R$ breaking scale. This makes it a long-liv
Externí odkaz:
http://arxiv.org/abs/2401.15145
We study a toy-model of continuous infinite expansion of space-time with the flat start. We use as the gravitational background a conformaly flat metric with an exponentially growing factor in conformal time. We aim to clarify some properties of quan
Externí odkaz:
http://arxiv.org/abs/2401.12855
Publikováno v:
Phys. Rev. D 109, 065026 (2024)
We consider $(1+1)$-dimensional dilatonic black hole with two horizons, canonical temperatures of which do not coincide. We show that the presence of quantum fields in such a background leads to a substantial backreaction on the metric: 2D dilatonic
Externí odkaz:
http://arxiv.org/abs/2401.07645
Autor:
Akhmedov, Emil T., Gubarev, Kirill
In this paper we propose generalizations of the Sokolov-Ternov and Unruh effects, and discuss the possibility to measure them on different experiments.
Externí odkaz:
http://arxiv.org/abs/2310.02866