An effective quantum defect theory for the diamagnetic spectrum of a barium Rydberg atom
文献类型：期刊论文
| 作者 | Li Bo1; Liu Hong-Ping2 |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2013 |
| 卷号 | 22期号:1 |
| 关键词 | diamagnetic spectrum quantum defect barium Rydberg atom |
| 英文摘要 | A theoretical calculation is carried out to investigate the spectrum of a barium Rydberg atom in an external magnetic field. Using an effective approach incorporating quantum defect into the centrifugal term in the Hamiltonian, we re-examine the reported spectrum of the barium Rydberg atom in a magnetic field of 2 : 89 T [J. Phys. B 28 L537 (1995)]. Our calculation employs B-spline basis expansion and complex coordinate rotation techniques. For single photon absorption from the ground 6s(2) to 6snp Rydberg states, the spectrum is not influenced by quantum defects of channels ns and nd. The calculation is in agreement with the experimental observations until the energy reaches E = -60 cm(-1). Beyond this energy, closer to the threshold, the calculated and experimental results do not agree with each other. Possible reasons for their discrepancies are discussed. Our study affirms an energy range where the diamagnetic spectrum of the barium atom can be explained thoroughly using a hydrogen model potential. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | MAGNETIC-FIELDS ; CROSSED FIELDS ; STURMIAN DISCRETIZATION ; B-SPLINES ; HYDROGEN ; STATES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000314815200027 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/907]  |
| 专题 | 武汉物理与数学研究所_原子分子光物理研究部 |
| 作者单位 | 1.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 2.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Bo,Liu Hong-Ping. An effective quantum defect theory for the diamagnetic spectrum of a barium Rydberg atom[J]. CHINESE PHYSICS B,2013,22(1). |
| APA | Li Bo,&Liu Hong-Ping.(2013).An effective quantum defect theory for the diamagnetic spectrum of a barium Rydberg atom.CHINESE PHYSICS B,22(1). |
| MLA | Li Bo,et al."An effective quantum defect theory for the diamagnetic spectrum of a barium Rydberg atom".CHINESE PHYSICS B 22.1(2013). |
入库方式： OAI收割
来源：武汉物理与数学研究所
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