THE SPIN-1/2 HEISENBERG-CHAINS IN CONSTANT MAGNETIC-FIELD AND COHERENT STATES
文献类型：期刊论文
| 作者 | ZHANG, J; FEI, SM; YAN, H , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.; YAN, H |
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 1993 |
| 卷号 | 20期号:1页码:55-64 |
| 关键词 | Quantum Groups Harmonic-oscillator Q-analogs Algebras Models Su(2) Xxz Representations |
| ISSN号 | 0253-6102 |
| 英文摘要 | In the ferromagnetic Heisenberg chains of XXX and XXZ types with the hidden symmetries of Lie bi-algebra su(2) and quantum bi-algebra su(q)(2), we show that at thermodynamic limit the algebra contractions give the boson algebra h(4) and the q-deformed boson algebra h(q)(2) as the hidden symmetries respectively. The chains in constant magnetic field are studied and the ground states and lowest excited states are given explicitly with energy spectra. The phonon (or angular momentum) excitations are shown to be bosonic for the isotropic case and q-bosonic for the anisotropic case, and the ground states and lowest excited states of the systems of the chains in field are given explicitly. We give the phonon coherent states in the isotropic Heisenberg chain and the q-coherent states of the anisotropic chain at the thermodynamic limit. The q-coherent states are shown to be a squeezed states of phonon excitations. |
| 学科主题 | Physics |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12077]  |
| 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 | YAN, H , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA. |
| 推荐引用方式 GB/T 7714 | ZHANG, J,FEI, SM,YAN, H , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.,et al. THE SPIN-1/2 HEISENBERG-CHAINS IN CONSTANT MAGNETIC-FIELD AND COHERENT STATES[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1993,20(1):55-64. |
| APA | ZHANG, J,FEI, SM,YAN, H , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.,&YAN, H.(1993).THE SPIN-1/2 HEISENBERG-CHAINS IN CONSTANT MAGNETIC-FIELD AND COHERENT STATES.COMMUNICATIONS IN THEORETICAL PHYSICS,20(1),55-64. |
| MLA | ZHANG, J,et al."THE SPIN-1/2 HEISENBERG-CHAINS IN CONSTANT MAGNETIC-FIELD AND COHERENT STATES".COMMUNICATIONS IN THEORETICAL PHYSICS 20.1(1993):55-64. |
入库方式： OAI收割
来源：理论物理研究所
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