Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Ksenzov, V. G."'
Autor:
Ksenzov, V. G.
We investigate two different models. In one of them massive fermions interact with a massive scalar field and in the other the fermion field is in an electrical field (QED2). The chiral condensates are calculated in one-loop approximation. We found t
Externí odkaz:
http://arxiv.org/abs/2101.09488
Autor:
Ksenzov, V. G., Romanov, A. I.
We investigate a model with a massless fermion and a massive scalar field with the Yukawa interaction between these two fields. The model possess a discrete symmetry. The chiral condensate is calculated in one-loop approximation in $(1+1)$-dimensiona
Externí odkaz:
http://arxiv.org/abs/1703.09022
Autor:
Ksenzov, V. G., Romanov, A. I.
We study two-dimensional model with a fermion field and a self-interaction scalar field with the Yukawa interaction beyond the framework of the one-loop approximation. We show that in the model besides a phase transitions appear decays of the excited
Externí odkaz:
http://arxiv.org/abs/1512.04472
Autor:
Ksenzov, V. G., Romanov, A. I.
Publikováno v:
Mod. Phys. Lett. A, Vol. 29, No. 38 (2014) 1450200
We investigate a class of models with a massless fermion and a self-interacting scalar field with the Yukawa interaction between these two fields. The models considered are formulated in two and four spacetime dimensions and possess a discrete symmet
Externí odkaz:
http://arxiv.org/abs/1404.5883
Autor:
Ksenzov, V. G., Romanov, A. I.
We discuss models with a massless fermion and a self-interacting massive scalar field with the Yukawa interaction. The chiral condensate and the fermion mass are calculated analytically. It is shown that the models have a phase transition as a functi
Externí odkaz:
http://arxiv.org/abs/1204.3051
Publikováno v:
Phys. Atom. Nucl. 74, 771 (2011); [Russian version: Yad. Fiz. 74, 797 (2011)]
We discuss the case when a fermion occupies an excited non-zero frequency level in the field of domain wall. We demonstrate that a solution exists for the coupling constant in the limited interval $1
Externí odkaz:
http://arxiv.org/abs/1009.4370
Publikováno v:
Phys. Atom. Nucl. 73, 1889 (2010); [Russian version: Yad. Fiz. 73, 1940 (2010)]
We discuss a self-consistent solution for a fermion coupled to static scalar field in the form of a kink (domain wall). In particular, we study the case when the fermion occupies an excited non-zero frequency level in the presence of the domain wall
Externí odkaz:
http://arxiv.org/abs/1001.3305
Autor:
Ksenzov, V. G.
The non-perturbative part of the vacuum energy density for static configuration in pure SU(2) Y-M theory is described. The vacuum state is constructed.
Comment: 17 pages, LaTeX
Comment: 17 pages, LaTeX
Externí odkaz:
http://arxiv.org/abs/hep-th/0001038
Autor:
Ksenzov, V. G.
Publikováno v:
Phys.Lett. B410 (1997) 52-56
It was shown that the non-perturbative properties of the vacuum are described by the quantum fluctuations around the classical background with zero canonical momentum. The vacuum state has been built and checked in the framework of the sigma models i
Externí odkaz:
http://arxiv.org/abs/hep-th/9704160
Autor:
Ksenzov, V. G.
Publikováno v:
Phys.Lett. B367 (1996) 237-241
The vacuum energy density is calculated for the $O(N)$ nonlinear sigma models in two dimensions. To obtain $\varepsilon_{vac}$ we assume that each point of the space in which non-perturbative f\/ields are determined can be replaced by a sphere $S^2$
Externí odkaz:
http://arxiv.org/abs/hep-th/9511055