“Emergent exotic quasiparticles in quantum spin liquids”
2017.11.08 10:43
| 날짜 | 2017-11-08 13:00 |
|---|---|
| 일시 | Nov. 8 (Wed.), 1:00 PM |
| 장소 | #5318 (E6-2. 5th fl.) |
| 연사 | Prof. Y. Matsuda Department of Physics, Kyoto University |
“Emergent exotic quasiparticles in quantum spin liquids”
Prof. Y. Matsuda
Department of Physics, Kyoto University
Nov. 8 (Wed.), 1:00 PM
#5318 (E6-2. 5th fl.)
Quantum spin liquid (QSL) is an exotic quantum phase of matter whose ground state is quantum-mechanically entangled without any magnetic ordering. A central, yet poorly understood issue concerns the excitations that characterize QSLs, which are hypothetically associated with the quasiparticle fractionalization and topological order. It is widely believed that in dimensions more than one, geometrical frustrations are required to realize QSL states. Here I discuss emergent exotic quasiparticles of three types of QSL states in frustrated quantum magnets mainly by thermal transport measurements.
1) Spinon excitations in organic Mott insulator EtMe3Sb[Pd(dmit)2]2 and 1T-TaS2 with triangular lattice.
2) Magnetic monopole (M-particle), electric monopole (E-particle), and photon (n-particle) excitations in rare earth pyrochlore oxides, Yb2Ti2O7 and Pr2Zr2O7, both of which host spin-ice correlations with strong quantum fluctuations.
3) Majorana fermion excitations and the half integer thermal Hall effect in a Kitaev QSL state on honeycomb lattice of a-RuCl3
Contact: Eun Gook Moon, Physics Dept., (egmoon@kaist.ac.kr)
댓글 0
| 번호 | 날짜 | 장소 | 제목 |
|---|---|---|---|
| 146 | 2015-12-17 11:00 | E4(KI Building), Matrix Hall (2nd fl.) | Wavefront engineering for in-vivo Deep brain imaging |
| 145 | 2015-12-09 11:00 | E4(KI Building), Connect room (2nd fl.) | Functional Imaging & Monitoring of Brain & Breast with Diffuse Light |
| 144 | 2015-03-13 14:00 | Connect Room, KI Bldg. |
The 15th Innovative Workshop on Soft/Bio Materials
 |
| 143 | 2022-09-21 16:00 | College of Natural Science E6-2, Rm. 1323 |
Materials and Device Nanofabrication of Optical Metasurfaces
|
| 142 | 2023-09-14 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
[CAPP seminar] Dark matter searches in Water Cherenkov Detectors
|
| 141 | 2023-05-15 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
Role of dark Higgs boson in DM physics and cosmology
|
| 140 | 2023-09-18 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
[CAPP Seminar] Searching for axions in quantum vacuum birefringence
|
| 139 | 2023-10-11 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
[CAPP seminar] Particle Physics with Neutrinos
|
| 138 | 2023-09-21 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
[CAPP seminar] Axion Magnetic Resonance
|
| 137 | 2023-06-14 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
[CAPP seminar] EMC at CERN
|
| 136 | 2024-01-25 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP seminars] Detecting Gravitational Waves by Elecromagnetic Cavity |
| 135 | 2023-03-27 15:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
A coherent mechanical oscillator pumped by a suspended quantum dot
|
| 134 | 2023-03-30 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
Detecting axions with chiral magnetic effects
|
| 133 | 2023-07-26 10:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | [CAPP Seminar] Am Expansive Search for Dark Matter with ADMX and DM Radio |
| 132 | 2023-06-22 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
[CAPP Seminar] The muon g-2 puzzle
|
| 131 | 2023-06-15 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
[CAPP Seminar] Cryogenic electronics for ion traps
|
| 130 | 2023-12-14 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
Superconducting qubits for large-scale quantum computers
|
| 129 | 2023-07-20 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
[CAPP Seminar] Cosmoparticle Physics of Dark Universe
|
| 128 | 2022-07-21 16:00 | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus |
Quintessential axions
|
| 127 | 2020-10-15 16:00 | CAPP Seminar Room #C303, Creation Hall (3F), KAIST Munji Campus |
Graphene-based Josephson junction microwave bolometer
|