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 1078768
504 <April. 12 (Wed.) 4:30 PM>디랙물질을 통해서 본 강상관 계의 양자 홀로그래피적 조명: 2017.04.05 51235
503 <4/5(Wed.) 18:00pm> 저에너지 가속기의 활용 2017.04.05 49579
502 <4/5(Wed.) 11:00am>Adhesion forces between nanoparticles in gas-phase processes and application 2017.04.03 105611
501 <April. 5 (Wed.) 4:30 PM>Majorana quasiparticles emergent in Kitaev quantum magnets 2017.03.31 79913
500 <Mar. 29(Wed.) 4:30 PM>Search for New Elements 2017.03.22 99872
499 <Mar. 22(Wed.) 4:30 PM>Symmetry and topology in the electronic structure of solids 2017.03.15 56598
498 <Mar. 15(Wed.) 4:30 PM>반도체 Fab Process와 물리학 전공자 2017.03.14 54270
497 2017학년도 1학기 콜로퀴움 일정 2017.01.05 305734
496 <Dec. 14(Wed.) 4:30 PM>중력과 양자 얽힘 (tentative) 2016.12.07 54326
495 <12/2(Fri.) 14:00>Overview of HIMAC facility 2016.12.01 55506
494 <Dec. 7(Wed.) 4:30 PM>Mechanotransduction of cells in vitro(세포기능의 역학적 조절) 2016.11.30 82299
493 <Nov. 30(Wed.) 4:30 PM> Chiral solitons for topological informatics 2016.11.23 81280
492 <Nov. 23(Wed.) 4:30 PM> Dry (Plasma) etch process in Semiconductor Device 2016.11.16 62185
491 <Nov. 16(Wed.) 4:30 PM> Two-dimensional Chiral Materials and Topological Insulators 2016.11.10 200811
490 <Nov. 9(Wed.) 4:30 PM> 20-nm resolution imaging of brain circuitry by next-generation expansion microscopy 2016.11.02 54292
489 <Nov. 2(Wed.) 4:30 PM> 현대 우주론 이론과 관찰 (Theories and observations of modern cosmology) 2016.10.19 55528
488 <10/25(Tue.) 11:00am>Crystallization of Water under Modulating Pressures 2016.10.14 62616
487 <Oct. 19(Wed.) 10:00 AM> Hyper-Kamiokande project -The future of neutrino physics in Japan 2016.10.12 62790
486 <10/11(Tue.) 15:00>Analysis of Individual Terrestrial Gamma-ray Flashes 2016.10.10 71678