Quantum breathers in nonlinear phonon and coupled electron-phonon systems
文献类型：期刊论文
| 作者 | Gammel, JT; Wang, WZ; Bishop, AR; Salkola, MI; Gammel, JT , LOS ALAMOS NATL LAB, DIV THEORET, LOS ALAMOS, NM 87545 USA. |
| 刊名 | SYNTHETIC METALS
 |
| 出版日期 | 1997 |
| 卷号 | 86期号:40911页码:2215-2216 |
| ISSN号 | 0379-6779 |
| 英文摘要 | Nonlinear quantum phonon excitations are studied in 1D lattice models for both effective nonlinear phonon and coupled electron-phonon systems. Multi-phonon bound states exist which are eigenstates of the system Hamiltonian, and which are natural counterparts of breather solutions of classical nonlinear systems. These quantum breather states form particle-like bands and are characterized by a finite coherence length. Due to their structure and dynamics, quantum breathers have specific experimentally observable responses in many correlation functions. In the pure phonon model, the dynamic structure factor is found to have significant intensity for the breather states, with a corresponding quenching of the neighboring bands of multi-phonon extended states. In the coupled electron-phonon model, IR and optical absorption spectra for breathers are reported. |
| 学科主题 | Physics |
| WOS记录号 | WOS:A1997WZ98800201 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12509]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Gammel, JT , LOS ALAMOS NATL LAB, DIV THEORET, LOS ALAMOS, NM 87545 USA. |
| 推荐引用方式 GB/T 7714 | Gammel, JT,Wang, WZ,Bishop, AR,et al. Quantum breathers in nonlinear phonon and coupled electron-phonon systems[J]. SYNTHETIC METALS,1997,86(40911):2215-2216. |
| APA | Gammel, JT,Wang, WZ,Bishop, AR,Salkola, MI,&Gammel, JT , LOS ALAMOS NATL LAB, DIV THEORET, LOS ALAMOS, NM 87545 USA..(1997).Quantum breathers in nonlinear phonon and coupled electron-phonon systems.SYNTHETIC METALS,86(40911),2215-2216. |
| MLA | Gammel, JT,et al."Quantum breathers in nonlinear phonon and coupled electron-phonon systems".SYNTHETIC METALS 86.40911(1997):2215-2216. |
入库方式： OAI收割
来源：理论物理研究所
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