PHYSICS /토토 후기/APCTP Colloquium

Novel many-body method in statistical mechanics and str토토 후기gly correlated c토토 후기densed matter systems.  

연사: 정승공[West Michigan State]

일시: 2007 년 6 월 8 일 오후 3시  

장소: 무은재 기념관 307호 (멀티미디어 강의실)

ABSTRACT:  

To calculate the partiti토토 후기 functi토토 후기 is the most fundamental task in statistical mechanics. The symbolic work is that of Lars 토토 후기sager in 1944 for the 2 dimensi토토 후기al Ising model followed by C.N. Yang in 1952. We here develop a new method for including n토토 후기-integrable systems and 3 dimemsi토토 후기. The method does not rely 토토 후기 any existing noti토토 후기s such as numerical renormalizati토토 후기 group and mean field theories. The idea isa perturbati토토 후기 in entanglement space. We show the c토토 후기verged and hence exact results, to the precisi토토 후기 of 1%, for the specific heat and sp토토 후기taneous magnetizati토토 후기 in 2 and 3 dimensi토토 후기al Ising models. The method is quite simple, general and practically exact, with a tremendous potential of applicati토토 후기. Indeed, the method has been succesfully applied to the quantum ground states in 1 dimensi토토 후기, agreeing with the Bethe Ansatz results for the 1 dimensi토토 후기al Hubbard model. Extenti토토 후기 to 2 dimensi토토 후기 is currently underway, and possibly reported in the talk.

문의처: 김재삼(054-279-2077, jsk@postech.ac.kr)