Faculty of Physics

Ֆիզիկայի ֆակուլտետ

Faculty of Physics

The process of training specialists in the field of physics and mathematics began in 1922 in YSU.:

Anna S. Kotanjyan

Senior Researcher | Faculty of Physics

Education
1984-1989, Department of Physics, Yerevan State University

Academic degree
2002,candidate –“On the Radiation from Charged Particles in Cylindrically Symmetric Inhomogeneous Medium”, Theoretical and Mathematical Physics, Institute of Applied Problems in Physics, National Academy of Sciences of RA

Professional experience
2013 – Present, Senior Researcher Department of Physics Yerevan State University
2010- 2013, Researcher, Department of Physics YSU
1995 –2009, Junior Researcher, IAPP, NAS RA
1992 – 1996, Postgraduate, IAPP, NAS RA

Scale of professional interests
Relativity and Gravitation, Cosmology, Quantum Field Theory Under the Influence of External Condition High-Energy Electromagnetic Processes in Inhomogeneous Media

Participation in grant projects
1996 – 2000, 96-855, Grant Ministry of Science and Education of the Republic of Armenia
1998 - 2000 ISTC Grant A100
2000 – 2009, Grants Ministry of Science and Education of the Republic of Armenia
0887, 1361, 119

Languages
Armenian (native), Russian (fluent), English (fluent)

anna.kotanjyan@ysu.am

Г. Г. Арутюнян , А. С. Котанджян , А. В. Овсепян , Р. М. Авакян , А. А. Саарян

Динамика космологичецкой модели с конформно-связанным скалярным полем

2021 | Article

Астрофизика, 64,3, 2021, 401-415

R. M. Avagyan , G. H. Harutunyan , A. S. Kotanjyan , A. V. Hovsepyan , A. A. Saharian

Dynamics of a cosmological model with a conformally-coupled scalar field

2021 | Article

Astrophysics 64, 355-369 (2021)

T.A. Petrosyan , A.A. Saharian , E.R. Bezerra de Mello, A.S. Kotanjyan

Fermionic condensate in de Sitter spacetime

2021 | Article

Astrophysics 64 (4), 529, (2021)

A. S. Kotanjyan , A. R. Mkrtchyan, A. A. Saharian , V. Kh. Kotanjyan

Generation of surface polaritons in dielectric cylindrical waveguides

2019 | Article

Physical Review Special Topics-Accelerators and Beams,2019, 22(4), 040701(1-10) էջ

Anna Kotanjyan , Alexander Balakin, Alexei Ilin, Levon Grigoryan

Relativistic Neutron Stars: Rheological Type Extensions of the Equations of State

2019 | Article

Symmetry, 11(2), 2019, 189(1-13) էջ

А. С. Котанджян , А. А. Саарян , В. Х. Котанджян

Синхротронное Излучение Заряда На Собственных Модах Диэлектрического Цилиндра

2019 | Article

Известия НАН РА. Физика (Journal of Contemporary Physics (Armenian Academy of Sciences)), 2019, 54(2), 151-159 էջ

А.С. Котанджян , А.А. Саарян , Д.А. Симонян

Индуцированная Границей Поляризация Вакуума В Пространстве Де Ситтера С Компактными Измерениями

2019 | Article

Известия НАН РА. Физика (Journal of Contemporary Physics (Armenian Academy of Sciences)), 2019, 54 (1), 3-15 էջ

D. H. Simonyan , A. A. Saharian , A. S. Kotanjyan

Vacuum Polarization Induced by a Boundary in de Sitter Space with Compact Dimensions

2019 | Article

Journal of Contemporary Physics (Armenian Academy of Sciences), 54 (1), 1-10, (2019)

G. G. Harutyunyan , A. S. Kotanjyan , R. M. Avagyan , N. A. Saharyan

Dynamics of the Quasi-de Sitter Model of the Early Universe

2018 | Article

Physics of Atomik Nuclei, no.6. 860-864, 2018

A. S. Kotanjyan , A. R. Mkrtchyan, A. A. Saharian , V. Kh. Kotanjyan

Radiation of surface waves from a charge rotating around a dielectric cylinder

2018 | Article

Journal of Instrumentation, 2018, Vol. 13, Issue 1, C01016(1-6) pp.

Р. М. Авагян , Н. А. Саарян, Г. Г. Арутюнян , А. С. Котанджян

Об одном сценарии расширения ранней Вселенной

2017 | Thesis

XVI Всероссийская гравитационная конференция, Международная конференция по гравитации, космологии и астрофизике. 2017, стр. 50

A. S. Kotanjyan , A. A. Saharian

Electromagnetic Quantum Effects in Anti-De Sitter Spacetime

2017 | Article

Physics of Atomic Nuclei. 2017, Vol.80, N3, pp. 562-571

A. A. Saharian , A. S. Kotanjyan , A. R. Mkrtchyan, B. V. Khachatryan

Synchrotron and Smith-Purcell radiations from a charge rotating around a cylindrical grating

2017 | Article

Nuclear instruments & methods in physics research section b-beam interactio1. 2017, 402, pp. 162-166

A. S. Kotanjyan , A. R. Mkrtchyan, A. A. Saharian

Radiation from a charge rotating inside a cylindrical grating

2017 | Article

Nuclear instruments & methods in physics research section b-beam interactions with materials and atoms. 2017, 402, pp. 173-176

Саарян А. А. , Котанджян А. С. , Варданян Т. С.

Излучение заряда, вращающегося вокруг идеально проводящего цилиндра

2017 | Article

Известия НАН РА. Физика (Journal of Contemporary Physics (Armenian Academy of Sciences). 2017, Volume 52, Issue 3, pp. 298-306

Anna S. Kotanjyan, Aram A. Saharian , Astghik A. Saharyan

Electromagnetic Casimir Effect in AdS Spacetime

2017 | Article

Galaxies, 2017, Vol. 5, Issue 4, 102(1-11) pp.

R. M. Avagyan , G. H. Harutunyan , A. V. Hovsepyan , A. A. Saharian , A. S. Kotanjyan

Էդուարդ Վարդանի Չուբարյան. գիտնականը, ուսուցիչը և գիտության կազմակերպիչը (Ակադեմիկոս Էդուարդ Չուբարյանի 80 ամյակին)

2016 | _____________

ԵՊՀ գիտական տեղեկագիր, Ֆիզիկա և մաթեմատիկա, 2016, #3, 3-5

A. A. Saharian , A. S. Kotanjyan , A. A. Saharyan

Electromagnetic Casimir densities for a plate in anti-de Sitter spacetime (Կազիմիրի էլեկտրամագնիսական խտությունները թիթեղի համար անտի դե Սիտերի տարածաժամանակում)

2016 | Article

ԵՊՀ գիտական տեղեկագիր, Ֆիզիկա և մաթեմատիկա, 2016, #3, 37-41

Anna Kotanjyan , A. Saharian , B. Khachatryan

Synchrotron radiation from a relativistic charged particle rotating around a cylindrical diffraction grating

2016 | Thesis

4th International Symposium Optics and its applications. 2016, p. 78

Vardan Martikyan, R. G. Petrosyan , A. S. Kotanjyan

Neutrons diffraction on periodic structures in the presence of external electromagnetic field

2016 | Thesis

4th International Symposium Optics and its applications. 2016, p. 83

Anna Kotanjyan

Influence of medium on the radiation processes

2016 | Thesis

3rd International Advanced School on Frontiers in Optics & Photonics. 2016, p. 2

E. V. Chubaryan , A. S. Kotanjyan , A. A. Saharian , D. H. Simonyan

Vacuum Densities for a Charged Scalar Field in de Sitter Space-Time with Compact Dimensions

2016 | Article

Gravitation & Cosmology. 2016, Vol. 22,, 187-192 pp.

E. V. Chubaryan , R. M. Avagyan , G. H. Harutyunyan , A. V. Hovsepyan , A. S. Kotanjyan

Conformal Representations of the General Scalar-Tensor Theory and Cosmological Models

2016 | Article

Gravitation & Cosmology. 2016, Vol. 22, 193-198 pp.

A. S. Kotanjyan , A. A. Saharian , H. G. Sargsyan, D. H. Simonyan

Quantum effects in anti-de Sitter spacetime for the electromagnetic vacuum

2016 | Article

Proceedings of Science. 2016, MPCS2015, 021/1-13 pp.

G. H. Harutyunyan , R. M. Avagyan , A. S. Kotanjyan , A. V. Hovsepyan

Representation of the evolution of the Universe in the JBD theory considering vacuum phenomena

2016 | Article

Proceedings of Science. 2016, MPCS2015, 019/1-8 pp.

A. S. Kotanjyan , A. A. Saharian

Radiation from a longitudinal oscillator moving along a circular trajectory

2016 | Article

Journal of Physics: Conference Series. 2016, 672, 012005/1-7 p.

A. S. Kotanjyan , A. A. Saharian

The study of undulator radiation of transversal oscillator

2016 | Article

Journal of Physics: Conference Series. 2016, 732, 012009/7 p.

A. S. Kotanjyan , A. A. Saharian

The study of undulator radiation of transversal oscillator

2016 | Article

Journal of Physics: Conference Series 673 (2016) 012010, doi:10.1088/1742-6596/673/1/012010

Kotanjyan Anna , Avagyan Roland , Harutyunyan Gohar , Sushkov Sergey, Chubaryan Edvard

Late stage of the Universe evolution taking into account the vacuum effects

2015 | Thesis

The Modern Physics of Compact Stars, 2015, p. 8

Kotanjyan Anna , Saharian Aram , Sargsyan Hayk, Simonyan David

Quantum effects in anti-de Sitter spacetime for electromagnetic vacuum state

2015 | Thesis

The Modern Physics of Compact Stars and Relativistic Gravity 2015, p. 8

A. Kotanjyan , A. Saharian

The Synchrotron Radiation of the Transversal Oscillator

2015 | Thesis

Radiation from Relativistic Electrons in Periodic Structures, 2015, p. 137

A. R. Mkrtvhyan, B. V. Khachatryan , A. A. Saharian , A. S. Kotanjyan

On a possible interference of synchrotron and Smith-Purcell radiation

2015 | Thesis

International Conference On Electron, Positron, Neutron and X-ray Scattering Under the External Influences, 2015, p. 18

Anna Kotanjyan , Aram Saharian

The study of undulator radiation of transversal oscillator

2015 | Thesis

3rd International Symposium Optics and its applications, 2015, p. 97

A. S. Kotanjyan , A. A. Saharian

Electromagnetic Casimir effect for conducting plates in de Sitter spacetime

2015 | Article

Physica Scripta, Switzerland, 2015, 90, 065304/1-9 pp.

A. A. Saharian , A. S. Kotanjyan , H. A. Nersisyan

Electromagnetic two-point functions and Casimir densities for a conducting plate in de Sitter spacetime

2014 | Article

Phys. Lett. B 728, 141-147 (2014); dx.doi.org/10.1016/j.physletb.2013.11.041; arXiv:1307.5536

A. S. Kotanjyan , A. A. Saharian , H. A. Nersisyan

Casimir densities for a conducting plate in de Sitter spacetime

2014 | Thesis

2nd International Symposium on the Modern Physics of Compact Stars and Relativistic Gravity, Journal of Physics: Conference Series 496, 012027, doi:10.1088/1742-6596/496/1/012027, 1-6, 2014

Р.М. Авакян , Г.Г. Арутюнян , Э.В. Чубарян , А.В. Овсепян , А.С. Котанджян

Модель де-Ситтера в присутствии скалярных полей III

2014 | Article

Астрофизика, 2014, 57, вып. 1.

A. S. Kotanjyan , A. A. Saharian

Electromagnetic fields and the radiation of a charged particle rotating along a closed trajectory around a dielectric cylinder

2014 | Article

Journal of Physics: RREPS13 and Meghri13, Conference Series 517, 012025 doi:10.1088/1742-6596/517/1/012025, 1-6, 2014

A.S. Kotanjyan , A.A. Saharian

Undulator radiation inside a dielectric waveguide

2013 | Thesis

Nucl. Instr. Methods B 309, 177{182 (2013); DOI: 10.1016/j.nimb.2013.01.076

A. S. Kotanjyan , A. A. Saharian

Electromagnetic _elds and the radiation of a charged particle rotating along a closed trajectory around a dielectric cylinder

2013 | Article

X International Symposium RREPS13+Meghri13, Lake Sevan, Armenia, September 23-28, 2013

Р. М. Авакян , Г. Г. Арутюнян , А. В. Овсепян , А. С. Котанджян

Модель де-Ситтера в присутствии скалярных полей II

2013 | Article

Астрофизика, 56, вып.4, 2013, Astrophysics.Vol.56. No.4 December, с. 617-623, pp. 561-568, 2013

A.S. Kotanjyan , A.A. Saharian , V.M. Bardeghyan

Casimir-Polder potential in the geometry of cosmic string with cylindrical boundary

2012 | Article

Int.J.Mod. Phys.: Conf. Ser. 14, No.01, 416-424 (2012), DOI: 10.1142/S2010194512007532

A.A. Saharian , A.S. Kotanjyan

Synchrotron radiation inside a dielectric cylinder

2012 | Article

Int. J.Mod. Phys. B 26, No. 7, 1250033 (17 pages), 2012; DOI: 10.1142/S0217979212500336; arXiv:1105.5245

A.A. Saharian , A.S. Kotanjyan

Synchrotron radiation inside a dielectric waveguide, Journal of Physics

2012 | Thesis

Conference Series 357, 012009 (2012); doi:10.1088/1742-6596/357/1/012009, IX International Symposium on Radiation from Relativistic Electrons in Periodic Structures

A. A. Saharian , A. S. Kotanjyan

Casimir-Polder potential for a metallic cylinder in cosmic string spacetime

2012 | Thesis

Phys. Lett. B 713, 133{139 (2012); dx.doi.org/10.1016/j.physletb.2012.06.009; arXiv:1201.0135

A.S. Kotanjyan , A.A. Saharian , V.M. Bardeghyan

Casimir-Polder forces in the geometry of cosmic string

2012 | Article

In "Astrophysics, Gravitation and Quantum Physics", A volume in honour of academician Edvard Chubaryan, pp. 281-289, Yerevan State University Publishing House, Yerevan, 2012, ISBN 978-5-8084-1579-9

A.S. Kotanjyan , A.A. Saharian

Undulator radiation inside a dielectric waveguide

2012 | Article

TUSCC3, Proceedings of ICAP2012, Rostock-Warnemunde, Germany, pp. 96-98; ISBN 978-3-95450-116-8

A.A. Saharian , A.S. Kotanjyan

Repulsive Casimir-Polder forces from cosmic strings

2011 | Thesis

Eur. Phys. J. C 71, 1765 (2011) (10pp); DOI:10.1140/epjc/s10052-011-1765-4; arXiv:1108.0195