| RAJESH NARAYANAN |
| Indian Institute of Technology, Madras |
| Abstract |
| Impurities can have very remarkable effects in describing the physics of systems close to phase transitions. Theoretically, these effects can be particularly drastic near a class of phase transitions called Quantum Phase Transitions(QPT). Near QPTs impurities could give rise to a whole slew of very interesting phenomena like quantum Griffiths phenomenon, Infinite disorder fixed points, or even smearing of the transition. In this talk we will construct classical models that display similar interesting features. The plausible existence of a Griffiths phase in these classical systems will be argued via heuristic grounds. These heuristic arguments will be backed up by an analytical real space renormalization group arguments whenever possible. |
| Time: May. 10th, 2012 (Thursday) 14:30 |
| Place: IOP D-210 Conference Room |
| Contact: Ying Deng 82649414 |
Mimicking "quantum" Griffiths effects in Classical systems
Laboratory's of Condensed Matter Theory and Matterials Computation
Tel：86-10-82649414 Fax：86-10-62553698 Email：theory@iphy.ac.cn, chenc@iphy.ac.cn
The Institute of Physics, Chinese Academy of Sciences P.O.Box 603,Beijing,China,100190
Tel：86-10-82649414 Fax：86-10-62553698 Email：theory@iphy.ac.cn, chenc@iphy.ac.cn
The Institute of Physics, Chinese Academy of Sciences P.O.Box 603,Beijing,China,100190