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01-3-1115-2014/2018
Priority:1
Status: New

Theory of Condensed Matter


Leaders:     V.A. Osipov
J. Brankov

Participating Countries, Institutes and International organizations:
Armenia, Australia, Belarus, Belgium, Brazil, Bulgaria, Canada, Czech Republic, France, Germany, Hungary, India, Ireland, Italy, Moldova, Mongolia, Poland, Romania, Russia, Serbia, Slovak Republic, Slovenia, Spain, Switzerland, Taiwan, Ukraine, USA, Uzbekistan, Vietnam.
Scientific Programme:
Effects of strong electron correlations in high-temperature superconductors, colossal magneto-resistance compounds (manganites), heavy-fermion systems, low-dimensional quantum magnets with strong spin-orbit interaction, topological insulators, etc. will be investigated based on a variety of underlying many-band electronic models including extended Hubbard model, Anderson model, super-exchange spin-orbital models of transition metal oxides with strong relativistic spin-orbital coupling. The electronic band structure, spectral properties of charge carrier quasiparticles, magnetic and charge collective excitations, metal-insulator and magnetic phase transitions, Cu- and Fe-based high-Tc superconductivity, charge and spin-orbital ordering will be studied. The obtained results will be used to support neutron scattering experiments performed in the FLNP JINR.

Investigations in the field of nanostructures and nanoscaled phenomena will be addressed to a study of physical characteristics of nanomaterials promising for various applications in modern nanotechnologies. The electronic, thermal and transport properties of carbon nanostructures will be investigated. It is planned to study the problem of quantum transport in molecular devices. Spin dynamics of magnetic nanoclusters will be investigated. The analysis of resonance tunneling phenomena in the layered superconductors and superconducting nanostructures in the external fields will be performed. Numerical modeling of resonance, radiative and chaotic properties of intrinsic Josephson junctions in high temperature superconductors is planned to be carried out.

Models in condensed matter physics will be studied by using methods of equilibrium and non-equilibrium statistical mechanics with the aim of revealing general properties of many-particle systems based on the ideas of self-similarity and universality. Mathematical mechanisms, underlying the kinetic and stationary behavior of model systems, as well as possible links between different models, will be investigated. The study of two-dimensional lattice models by the transfer matrix method will be focused on confirming the predictions of the logarithmic conformal field theory. The theory of integrable systems will be developed in the aspect of finding new integrable boundary conditions for two-dimensional spin systems and the solution of the corresponding Yang-Baxter equations. The universal behavior of correlation functions in non-equilibrium systems will be studied as well. The research in the structure theory and the theory of representations of quantum groups and matrix algebras will be directed to further applications in the theory of integrable models in quantum mechanics and statistical physics. Applications of the elliptic hypergeometric integrals, defining the most general solutions of the Yang-Baxter equation and most complicated known exactly computable path integrals in four-dimensional quantum field theory, to two-dimensional spin systems.

Expected main results in 2014:
List of Activities
  Activity or experiment Leaders
 
  Laboratory or other
Division of JINR
Main researchers
1. Complex materials
and nanostructures
V.A. Osipov
N.M. Plakida
  BLTP
 
E.M. AnitasA.Yu. ChernyA.V. ChizhovV. IlkovichO.G. Isaeva V.L. KatkovE.A. KochetovD.V. KolesnikovS.E. KrasavinA.N. Novikov V.N. PlechkoI.R. RahmonovJ. SchmelzerYu.M. ShukrinovM.A. Smondyrev J. SmotlachaA.A. VladimirovV.Yu. Yushankhai
2. Contemporary problems
of statistical physics
J. Brankov
V.B. Priezzhev
  BLTP
 
N.Zh. BunzarovaV.M. DubovikV.I. InozemtsevT.A. IvanovaA.L. Kuzemsky V. PapoyanA.E. PatrikA.M. PovolotskyP.N. PyatovV.P. Spiridonov V.I. YukalovP.E. Zhidkov
  FLNP
 
V.L. AksenovA.M. BalagurovA.I. Kuklin

Collaboration
Country or International
Organization
City Institute or Laboratory
Armenia Yerevan ANL
YSU
Australia Melbourne Univ.
Sydney Univ.
Belarus Minsk IP NASB
ICE MES RB
JIMB NASB
JIPNR-Sosny NASB
Belgium Louvain-la-Neuve UCL
Brazil Brasilia, DF UnB
Sao Paulo, SP USP
Natal, RN IIP UFRN
Bulgaria Sofia IMech BAS
ISSP BAS
SU
INRNE BAS
Canada Montreal Concordia
Quebec ULaval
Kingston Queen's
London Western
Czech Republic Rez NPI ASCR
France Paris UPMC
Marseille UPC
Nice UN
Valenciennes UVHC
Germany Bonn UniBonn
Bremen Univ.
Braunschweig TU
Dortmund TU Dortmund
Darmstadt GSI
Dresden IFW
MPI PkS
TU Dresden
Duisburg UDE
Leipzig UoC
Magdeburg OVGU
Rostock Univ.
Stuttgart MPI-FKF
Wuppertal Univ.
Hungary Budapest Wigner RCP
India Mumbai TIFR
Ireland Dublin DIAS
Italy Catania UniCT
Salerno UniSa
Poland Krakow JU
Warsaw IPCh PAS
WUT
Katowice US
Poznan AMU
IMP PAS
Romania Bucharest IFIN-HH
Timi soara UVT
Russia Moscow MGTU MIREA
NNRU "MEPhI"
MSU
PFUR
SINP MSU
MI RAS
NRC KI
Moscow, Troitsk HPPI RAS
INR RAS
Belgorod NRU BelSU
Dubna BMSUT MIREA
Gatchina PNPI
Kazan KFU
Protvino IHEP
Saratov SSU
St. Petersburg ETU
IPTI RAS
SPbSU
Voronezh VSU
Moldova Chisinau IAP ASM
Mongolia Ulaanbaatar NUM
Serbia Belgrade INS "VINCA"
Slovak Republic Bratislava IP SAS
Kosice IEP SAS
TUKE
Slovenia Ljubljana UL
Spain Madrid ICMM
Switzerland Villigen PSI
Zurich ETH
Taiwan Taipei IP AS
Ukraine Kharkov KFTI NASU
Kiev IMP NASU
NUK
L'viv ICMP NASU
USA Louisville, KY UofL
New York, NY CUNY
Rochester, NY UR
Tallahassee, FL FSU
Uzbekistan Tashkent Assoc."P.-S." PTI
Vietnam Hanoi IMS VAST

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