logo

korean english

게시판

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 1058098
502 <11/14> Resonance collective mode in novel superconductors 2008.11.11 94138
501 <4/22> How Many is Different? Ideal Bose gas revisited 2011.04.22 93874
500 <4/15(수) 오후4:30분> Who is SHE? 2015.04.08 93853
499 <10/9> Smearing effect of membrane in plane-wave matrix model 2009.10.05 93808
498 <3/9> Understanding the Nature of Metal-Insulator Transition in a Single Crystalline VO2 nanowires 2011.03.04 93679
497 <6/18> A consistent truncation of D=11 supergravity to D=4, N=2 supergravity using wrapped M5-branes 2010.06.10 93667
496 <11/21> 복잡 산화물 이종접합 및 다강체 연구(Complex oxide heterostructures and multiferroics) 2012.11.15 93575
495 <11/27> 중성자로 보는 작은 세상 속 큰 물리 2009.11.24 93573
494 <10/8(수> Astrophysical probes of Dark Matter, the case of the Milky Way 2014.10.01 93502
493 <10/16> SPM Study of CVD Graphene on h-BN Film 2013.10.04 93399
492 <4/9> Quantum oscillations at the LHC 2014.04.03 93349
491 <1/26> Hamiltonian formalism 2011.01.19 93346
490 <11/26> The Carbon New Age 2010.11.18 93308
489 영어초록 예시 2008.03.18 93293
488 2007학년도 2학기 콜로키엄 schedule 안내 2007.09.27 93143
487 <Oct.20(Tue) 16:00> Electromagnetic Response and Thermomagnetic Instabilities in Three-Dimensional Nanostructured Superconductors file 2015.10.15 93069
486 <4/10> Mapulation of spins in organic compounds 2013.04.03 93030
485 <12/21(Fri) 3:00pm ~ > Quasilocal Smarr Relations / Expanding Universe and Dynamical Compactification Using Yang-Mills Instantons 2018.12.17 92876
484 <10/10>Self-reconfigurable robots 2008.10.07 92874
483 <5/14> Synthesis of Two Dimensional Materials by Chemical vapor deposition 2014.05.07 92668