Zobrazeno 1 - 10
of 153
pro vyhledávání: '"Ioffe, M. V."'
Publikováno v:
Universe 2022, 8(12), 635
We study a perturbation theory for embedding gravity equations in a background for which corrections to the embedding function are linear with respect to corrections to the flat metric. The arbitrariness remaining after solving the linearized field e
Externí odkaz:
http://arxiv.org/abs/2210.13272
Autor:
Ioffe, M. V., Nishnianidze, D. N.
Publikováno v:
The European Physical Journal Plus 137 (2022) 1195
In the present paper, a systematic approach is presented for solution of two-dimensional massless Dirac equation with external electrostatic potential applied. This approach is based on the new - asymmetric - form of SUSY-like intertwining relations.
Externí odkaz:
http://arxiv.org/abs/2209.12539
Autor:
Ioffe, M. V., Nishnianidze, D. N.
Publikováno v:
Europhysics Letters, 129 (2020) 61001
It is commonly known that the Fokker-Planck equation is exactly solvable only for some particular systems, usually with time-independent drift coefficients. To extend the class of solvable problems, we use the intertwining relations of SUSY Quantum M
Externí odkaz:
http://arxiv.org/abs/2004.03980
Publikováno v:
Class. Quantum Grav. 37 (2020) 075019
The work is devoted to the search for explicit isometric embeddings of a metric corresponding to the collapse of spherically symmetric matter with the formation of a black hole. Two approaches are considered: in the first, the embedding is constructe
Externí odkaz:
http://arxiv.org/abs/2003.03742
Publikováno v:
The European Physical Journal Plus 135 (2020) 531
This paper is devoted to the study of behavior of open quantum systems consistently based on the Franke-Gorini-Kossakowski-Lindblad-Sudarshan (FGKLS) equation which covers evolution in situations when decoherence can be distinguished. We focus on the
Externí odkaz:
http://arxiv.org/abs/2002.00410
Publikováno v:
International Journal of Geometric Methods in Modern Physics, 17(3), 2050037 (2020)
We study the procedure that allows to rewrite the actions of some modified gravity theories like mimetic gravity and Regge-Teitelboim embedding theory as Einstein-Hilbert actions with additional matter contributions. It turns out that this procedure
Externí odkaz:
http://arxiv.org/abs/1912.12713
Publikováno v:
Eur. Phys. J. Plus (2019) 134: 450
The intertwining relations between superpartner Hamiltonians are the main ingredients of well known Supersymmetrical Quantum Mechanics (SUSY QM). In the present paper, the generalized form of intertwining is used for investigation of a massless (zero
Externí odkaz:
http://arxiv.org/abs/1906.03664
Publikováno v:
Journal of Physics A: Mathematical and Theoretical 52 (2019) 425301
We investigate departures from the Hamiltonian dynamics such as the quantum decoherence in a supersymmetric quantum system due to its interaction with the environment. The effective description is given by the Franke-Gorini-Kossakowski-Lindblad-Sudar
Externí odkaz:
http://arxiv.org/abs/1901.03848
Autor:
Ioffe, M. V., Nishnianidze, D. N.
Publikováno v:
Modern Physics Letters B, 32 (2018) 1850329
The excitations in graphene and some other materials are described by two-dimensional massless Dirac equation with applied external potential of some kind. Solutions of this zero energy equation are built analytically for a wide class of scalar poten
Externí odkaz:
http://arxiv.org/abs/1811.01637
Publikováno v:
Journal of Mathematical Physics 58 (2017) 072105
For the two-dimensional Schr\"odinger equation, the general form of the point transformations such that the result can be interpreted as a Schr\"odinger equation with effective (i.e. position dependent) mass is studied. A wide class of such models wi
Externí odkaz:
http://arxiv.org/abs/1712.02253