ANDREI ANATOLIEVICH ZVYAGIN
Doctor of Sciences in Physics and Mathematics (emphasis on the Theoretical Physics) from the B.I. Verkin Institute for Low Temperature Physics and Engineering of the Ukrainian Academy of Sciences, Kharkov, 1993. Thesis: Quantum Effects in Interacting Spin and Strongly Correlated Electron Low-Dimensional Systems
Candidate of Science in Physics and Mathematics (emphasis on the Physics of Magnetism), equivalent to Ph.D., from the Institute for Low Temperature Physics and Engineering, of the Academy of Sciences of the Ukrainian SSR, Kharkov, 1985. Advisor Prof. V.M. Tsukernik. Thesis: Role of Anisotropic Interactions in Static and Kinetic Properties of Magnets.
Diploma in Physics (emphasis on the Theoretical Physics) from the Kharkov State University, 1981.
Full Professor (Theoretical Physics), from the Ministry of Education and Science of Ukraine, Kiev, 2005.
Senior Research Fellow (Theoretical Physics), equivalent to Associate Professor, from the Ukrainian Academy of Sciences, Kiev, 1993.
Principal Researcher , Staff Position, B.I. Verkin Institute for Low Temperature Physics and Engineering, of the National Academy of Sciences of Ukraine, Kharkov, 2021 - to the present time.
Leading Researcher , Staff Position, B.I. Verkin Institute for Low Temperature Physics and Engineering, of the National Academy of Sciences of Ukraine, Kharkov, 1995 - 2021.
Senior Researcher , Staff Position, the same Institute, 1989-1995.
Researcher , Staff position, the same Institute, 1986--1989.
Junior Researcher , the same Institute, 1986--1986.
Engineer , the same Institute, 1981--1986.
Graduate and undergraduate student , Kharkov State University, Department of Physics, 1976-1981.
PH.D. THESES SUPERVISED
Ya.Yu. Segal, Thesis: Quantum Features of Static and Kinetic Properties of Low-Dimensional and Low-Symmetric Magnets, Kharkov, 1993.
T.V. Bandos , Thesis: Thermal and Electro-Magnetic Field Effect on Current and Critical States of Superconductors and Normal Metals, Kharkov, 1995.
A.V. Makarova , Thesis: Features of Magnetic Phase Transitions in Low Dimensional and Correlated Electron Systems, Kharkov, 2005.
E.S. Orel, Thesis: “Effects of inter-site spin correlations in the excitation spectra of d-f metals”, Kharkov, 2012.
OTHER PROFESSIONAL ACTIVITIES
Member of the Advisory Board (2005-2008), Member of the Editorial board (since 2009) of the journal Fizika Nizkih Temperatur (American Institute of Physics translation: Low Temperature Physics); the scientific editor of the journal 1992--2000.
Member of Scientific Councils of the Institute for Low Temperature Physics and Engineering (Physics of Magnetism) 1995-2002; 2010-2018, of the Institute for Single Crystals (Theoretical Physics) 1994-1999, and of the National Scientific Center "KhFTI" 2010-2018.
Member of Scientific Councils at the Institute for Low Temperature Physics and Engineering: New Problems of Mathematics, Theoretical Physics of the Condensed Matter, Low Temperature Magnetism and Optics of Ferroics;
Referee for the journals: Physical Review Letters, Physical Review A,B,E, Europhysics Letters, European Physical Journal B, Journal of Physics: A, Journal of Physics: Condensed Matter, Physics Letters A, JETP, Modern Physics Letters A,B, Low Temperature Physics.
• Strongly correlated electron systems, magnetic and hybridization impurities, Kondo effect, Kondo and Anderson lattices, heavy fermions, disordered correlated electron systems, non-Fermi-liquid behavior, “unconventional” superconductivity, co-existence of magnetic and superconducting fluctuations, strong correlations between spin, charge and orbital degrees of freedom in correlated electron systems, interactions between electrons and a crystal lattice (phonons), Electron Spin Resonance in correlated electron systems;
• Mesoscopic and nanoscale effects in condensed matter physics: Aharonov-Bohm-Casher topological effects, persistent currents, conductance, Coulomb blockade oscillations, interference of these effects, Kondo effects in quantum dots and wires;
• Magnetism theory: phase transitions, low-dimensional magnetic models and systems, resonance excitations of spin systems, incommensurate magnetic structures (Dzyaloshinsky-Moriya interaction, spin frustrations, next-nearest-neighbor and further couplings), gapped states in 1D spin systems (RVB-like, spin-Peierls, integer-spin Heisenberg systems, spin ladders), electron spin resonance, nuclear magnetic resonance and muon spin rotation in low-dimensional magnets, multisublattice spin systems (magnetization plateaux), chiral magnets, quantum spin liquids, the co-operative Jahn-Teller effect and other interactions of orbitals with spin degrees of freedom, magneto-acoustic effects, magnetic impurities, disordered spin systems; laser effects in spin systems;
• Low dimensional many-body theories: nonlinear dynamics, exactly solvable quantum models (1D and 2D quantum spin models, 2D statistical models, 1D strongly correlated electron systems (Hubbard model, t-J model, Luttinger liquid, etc.)), conformal field theory, (1+1) quantum field theories;
• Quantum computers: qubits, gates, condensed matter realizations, topological quantum computers, Majorana fermions;
• Behavior of ultra-cold interacting atoms in one-dimensional traps;
• Topological insulators and superconductors;
• Non-equilibrium dynamics of quantum systems
• Excitons in molecular aggregates
• Superfluid : magnetic excitations.