波谱学杂志 ›› 1996, Vol. 13 ›› Issue (4): 311-320.

• 研究论文 •    下一篇

当能级间隔较小时三能级核四极共振自旋系统对脉冲的响应

夏佑林1,2, 胡红兵2, 杨保联2, 李丽云2, 叶朝辉2   

  1. 1. 中国科学技术大学生物系, 合肥 230026;
    2. 中国科学院武汉物理研究所波谱与原子分子物理国家重点实验室, 武汉 430071
  • 收稿日期:1995-11-16 修回日期:1996-01-18 出版日期:1996-08-05 发布日期:2018-01-17
  • 基金资助:
    国家自然科学基金资助项目

THE RESPONSES OF THREE ENERGY LEVELS SPIN SYSTEM WITH SMALL ENERGY LEVEL SEPARATION TO PULSES

Xia Youlin1,2, HU Hongbin2, Yang Baolian2, Li Liyun2, Ye Chaohui2   

  1. 1. Department of Biology, University of Sciences and Technology of China, Hefei 230026;
    2. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, The China
  • Received:1995-11-16 Revised:1996-01-18 Online:1996-08-05 Published:2018-01-17

摘要: 用虚拟自旋-1/2算符理论考察了I=1的核四极共振自旋系统在其能级间隔较小时对1-2个脉冲的响应.由于核四极相互作用表象中的射频场与核自旋的相互作用(Hrf)包含时间,因而用Dyson时序算符来计算密度算符在Hrf作用下的演化.

关键词: 核四极共振, 对脉冲的响应, Dyson时序算符

Abstract: Responses to 1-2 pulses for NQR spin system of I=1 with small energy level separation are examined with fictitious spin -1/2 operator formalism.Because the interaction of nuclear spin and radio frequency field in the framework of nuclear quadrupolar interaction is time dependent, time evolutions of density operator are calculated with Dyson time order operator.

Key words: NQR, Responses to pulses, Dyson time-order operator