6/8 APCTP-POSTECH Dist토토 후기guished L

"올림픽 토토올림픽 토토올림픽 토토 “Entanglement perturbation theory : a novel
many-body Method in statistical mechanics
and strong correlation physics”
  
♦Speaker : Prof. Sung Gong Chung (Western Michigan Univ.)
♦Place : Physics Seminar Room (Science Bldg, 3-201)
♦Date & Time : June,올림픽 토토2(Tue)올림픽 토토4:00올림픽 토토~올림픽 토토5:00 pm

Abstract
  
Since the very beginning of quantum theory, to calculate the partition functions and solve the Schrodinger
equation for macroscopic quantum systems have been a fundamental task of theoretical physics. It would
not be an exaggeration to say that due올림픽 토토to올림픽 토토lack올림픽 토토of올림픽 토토such올림픽 토토methods,올림픽 토토a올림픽 토토tremendous올림픽 토토effort올림픽 토토of올림픽 토토theoretical
physicists has been devoted to the development of올림픽 토토a올림픽 토토variety올림픽 토토of올림픽 토토approximate올림픽 토토methods올림픽 토토and올림픽 토토numerical
simulations. While we have seen a올림픽 토토considerable올림픽 토토progress올림픽 토토in올림픽 토토rigorous올림픽 토토treatment올림픽 토토of올림픽 토토quantum올림픽 토토1D올림픽 토토and
classical 2D systems over the last several decades, these rigorous methods cannot handle non-integrable
models nor generalizable to higher dimensions. On the other hand, the method of numerical renormalization
group has seen a remarkable success in quantum 1D systems and in finite올림픽 토토Fermi올림픽 토토systems.올림픽 토토However,올림픽 토토in
spite of a huge effort, this approach has not been quite successful for macroscopic 2D quantum systems,
indicating the very idea of Hilbert space truncation breaks down in two dimensions. Over the recent years,
we have been올림픽 토토developing올림픽 토토a올림픽 토토novel올림픽 토토many-body올림픽 토토method,올림픽 토토entanglement올림픽 토토perturbation올림픽 토토theory (EPT),올림픽 토토for
calculating partition functions and solve the Schrodinger equation,올림픽 토토particularly in the strongly correlated
condensed matter systems.

Contact Person : Prof. Byung Il Min(054-279-2074, bimin@postech.ac.kr)
"