PHYSICS/BK21 Seminar[09.06.02]
관련링크
본문
" “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, 2(Tue) 4:00 ~ 5:00 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 due to lack of such methods, a tremendous effort of theoretical
physicists has been devoted to the development of a variety of approximate methods and numerical
simulations. While we have seen a considerable progress in rigorous treatment of quantum 1D and
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 finite Fermi systems. However, in
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 been developing a novel many-body method, entanglement perturbation theory (EPT), for
calculating partition functions and solve the Schrodinger equation, particularly in the strongly correlated
condensed matter systems.
Contact Person : Prof. Byung Il Min(054-279-2074, bimin@postech.ac.kr)
"
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, 2(Tue) 4:00 ~ 5:00 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 due to lack of such methods, a tremendous effort of theoretical
physicists has been devoted to the development of a variety of approximate methods and numerical
simulations. While we have seen a considerable progress in rigorous treatment of quantum 1D and
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 finite Fermi systems. However, in
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 been developing a novel many-body method, entanglement perturbation theory (EPT), for
calculating partition functions and solve the Schrodinger equation, particularly in the strongly correlated
condensed matter systems.
Contact Person : Prof. Byung Il Min(054-279-2074, bimin@postech.ac.kr)
"
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