Ֆիզիկայի ֆակուլտետ
Faculty of Physics
The process of training specialists in the field of physics and mathematics began in 1922 in YSU.:
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Lyudvig A. Vardanyan

Researcher | Faculty of Physics
Education
Chair of Solid State Physics, YSU
1999–2003: Yerevan State University, Bachelor’s degree with honor diploma in physics
2003–2005: Yerevan State University, Master's degree physics
2006-2008: University of Trieste, Department of theoretical physics, Master's degree.
2005–2008: Russian-Armenian (Slavic) State University, PhD in Semiconductor Physics

Employment
2009 January – present: Researcher, Research laboratory of the Chair of solid state physics, YSU

Specialization
Low dimensional systems and nanostructures

Awards and Grants
''Decay of the coherent polaron states in quantum dots in the presence of uniform magnetic and electric fields''

lvardan@ysu.am

Influence of image charge effect on impurity-related optical absorption coefficients and refractive index changes in a spherical quantum dot
2017 | Article
Superlattices and Microstructures. 2017, 103, pp. 205-212
Energy-loss rate of hot electrons due to confined acoustic phonon modes in a semiconductor quantum wire under transverse electric field
2017 | Article
Physica B-Condensed Matter. 2017, 519, pp. 102-107
Image Charge and Electric Field Effects on Hydrogen-like Impurity-bound Polaron Energies and Oscillator Strengths in a Quantum Dot
2016 | Article
Journal of ELECTRONIC MATERIALS. 2016, 45. 11, 5847-5852 pp.
Electric field and image charge effects on impurity-bound polarons in a CdS colloidal quantum dot embedded in organic matrices
2016 | Article
Physica B: Physics of Condensed Matter. 2016, 503, 70-74 pp.
Influence of the image charge effect on the hydrogen-like impurity-bound polaron in a spherical quantum dot in the presence of an electric field
2016 | Article
Physica E: Low-dimensional Systems and Nanostructures, Volume 75, pp. 174-180 (2016). dx.doi.org/10.1016
Effect of image charges on the impurity-bound polaronic states in colloidal quantum dots embedded in different organic matrices
2015 | Thesis
International Symposium and Young Scientist School on Disordered and Ordered Materials Analysis and Characterization, 2015, p. 74-75
Impurity-bound polaronic states under an external electric field in quantum dots: Image charge effect
2015 | Thesis
3rd International Symposium “Optics and its Applications”, 2015, p. 119
Influence of both electric and magnetic fields on the polaron properties in a finite-potential quantum well wire
2013 | Article
Physica E 47, 134-140, 2013. dx.doi.org/10.1016
Phonon confinement effect on the polaron basic parameters in nanowires in the presence of external fields
2012 | Article
Journal of Physics: Conference Series, Volume 350, Issue 1, pp. 012022 (2012), 6 pp.. dx.doi.org
Confined and interface polarons in cylindrical quantum wire in perpendicular magnetic and electric fields
2011 | Article
Proc. VIII Int. Conf. “Se-miconductor Micro and Nanoelectronics”, Yerevan, 2011, pp. 163-166
The effect of an applied electric field on the polaron basic parameters in a quantum well wire
2009 | Article
Physica E, Volume 41, Issue 8, p. 1417-1422 (2009). dx.doi.org/10.1016
Влияние электрического поля на собственную энергию и эффективную массу полярона в полупроводниковой квантовой проволоке (Էլեկտրական դաշտի ազդեցությունը քվանտային լարում պոլարոնի սեփական էներգիայի և արդյունարար զանգվածի վրա)
2008 | Article
ԵՊՀ Գիտական տեղեկագիր, Բնական գիտություններ, 2008, #2, էջ 49-52 (ռուսերեն)49-52
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Effect of electric and magnetic fields on the binding energy of a Coulomb impurity bound polaron in a cylindrical quantum dot
2008 | Article
Physica Status Solidi (B), vol. 245, issue 1, pp. 123-131 (2008). dx.doi.org/10.1002
Effect of electric and magnetic fields on the binding energy of the Coulomb impurity bound polaron in a quantum dot
2008 | Article
Physica E, v. 40, iss. 5, p. 1513-1516 (2008). dx.doi.org/10.1016
Energy-loss rate of hot electrons via LA-phonon scattering in free standing quantum wire
2007 | Article
ԵՊՀպինդ մարմնի ‎ֆիզիկայի ամբիոնի հիմնադրման 50-ամյակին նվիրված գիտաժողովի նյութեր, Երևան, 2007թ., էջ 84-89
A.L.Vartanian , E.M. Kazaryan
Effect of electric and magnetic fields on the binding energy of the Coulomb impurity bound polaron in a quantum dot
2007 | Thesis
International Conference on Electronic Properties of Two-dimensional Systems and Modulated Semiconductor Structures (EP2DS-17), Genova, Italy, 2007 , p.358
Hydrogenic impurity bound polaron in a cylindrical quantum dot in an electric field
2007 | Article
Physics Letters A, Volume 360, Issue 4-5, p. 649-654 (2007). dx.doi.org/10.1016
A.L.Vartanian , E.M.Kazaryan
Effect of electron-phonon interaction in hydrogenic impurity binding energy in quantum dot in presence of magnetic and electric fields
2006 | Article
International conference “New Technologies for development of heterosemiconductors for device applications”, Yerevan, Armenia, p. 73-74, 2006
A.L.Vartanian , E.M.Kazaryan
Effect of electric and magnetic field on the hydrogenic impurity bound polaronbindibg energy in quantum dot
2006 | Article
Proc. Conf. on Laser Physics -2006, p.177-180 Ashtarak, Armenia, 2006.