korean english


Home > 게시판 > 세미나

아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다. 아 래 1. 제목: Dynamics of one-dimensional electrons and exotic elementary excitations 2. 연사: Y. Kuramoto 교수 (일본 동북대학교) 3. 일시: 2006년 9월 8일(금요일) 오후 4시 30분 4. 장소: 물리학과 세미나실(31355호실) 5. 초록: Interactions among one-dimensional electrons cause nonperturbative effects such as instability of the Fermi liquid and the spin-charge separation. Understanding of dynamics probed by neutron scattering and photoemission requires a global theory beyond the scope of the standard Tomonaga-Luttinger or conformal field theories focusing on the infrared limit. We first review relevant experimental results, and take the supersymmetric t-J model with a long-range (1/r^2) interaction which permits derivation of explicit dynamical quantities. We present exact results for static correlation functions, dynamical structure factor, and one-particle spectral functions. It is shown that spin and charge excitations are carried by exotic quasi-particles which obey neither Fermi nor Bose statistics. In the particular momentum range, these fractional particles seem to recombine to make up an electron. Hence an electron can be regarded as a composite particle from an excitation point of view.
번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1078799
290 <4/10> Mapulation of spins in organic compounds 2013.04.03 96745
289 2016학년도 2학기 콜로퀴움 일정 2016.08.02 96461
288 2007학년도 2학기 콜로키엄 schedule 안내 2007.09.27 96243
287 <3/9> Understanding the Nature of Metal-Insulator Transition in a Single Crystalline VO2 nanowires 2011.03.04 96007
286 <11/21> 복잡 산화물 이종접합 및 다강체 연구(Complex oxide heterostructures and multiferroics) 2012.11.15 95510
285 <May.16(Wed.) 4:30 PM> Single crystal growth of metal film and metal oxide film on different substrates and their various applications 2018.05.09 95169
» <9/8>Dynamics of one-dimensional electrons and exotic elementary excitations 2006.09.04 95153
283 <9/18> 생체계에서의 협동현상: 박테리아 수영에서부터 고분자 수송현상까지 2009.09.14 94832
282 <4/17> Probing Stellar Explosions with Radioactive Beams* 2013.04.10 94415
281 <5/14> Synthesis of Two Dimensional Materials by Chemical vapor deposition 2014.05.07 94266
280 <6/12> Latest Results from the IceCube Neutrino Observatory 2013.06.07 94219
279 <12/7>유럽입자물리연구소에서의 CMS 실험 2007.12.03 94212
278 <11/26> The Carbon New Age 2010.11.18 94130
277 <5/23> Nanotechnology in Korea: Present Status and Perspective 2008.05.21 94048
276 <11/20> Particle Accelerators: Driving Forces for Energy 2009.11.16 94006
275 <Nov.18(Wed.)>When Physics meets the Living Cells 2020.11.11 93906
274 <3/12> Nano Structure of wide Band Gap Semiconductors 2010.03.08 93793
273 <9/11> Epitaxial Oxygen Sponge 2013.09.09 93777
272 <Sep. 30(Wed.) 4:30 PM>Local electronic structures of stacking grain boundary in bilayer graphene 2015.09.23 93522
271 <10/13> What has happened in the beginning of the universe? 2006.10.11 93439