Doctoral Promotion Guang Yang

In his research project, Guang Yang has focused on the experimental and theoretical spectroscopic studies of the nuclear-spin hyperfine effects in the rovibrational spectra of small molecules. He has developed an advanced theoretical approach to calculate with sub-kHz accuracy the nuclear-spin hyperfine effects in molecules over a broad energy spectrum, spanning from microwaves to the near-infrared. He has applied this methodology to calculating the ortho-para transitions in a gas-phase water molecule, marking the first theoretical prediction of its kind [1]. Furthermore, Guang has made theoretical simulations of the hyperfine effects in the presence of a static external field and a field gradient, and investigated the effect of the external field on the ortho-para transition rates in water. In a joint project with Ingmar Hartl's research group (Laser Science & Technology) at DESY, Guang conducted high-resolution measurements of the hyperfine effects in ammonia molecule employing advanced frequency-comb laser technology [2].

We at CMI wish Guang Yang the very best for his future life and career.

[1] A. Yachmenev, G. Yang, E. Zak, S. N. Yurchenko, J. Küpper, J. Chem. Phys. 156 (2022) 204307, https://bib-pubdb1.desy.de/record/475684

[2] G. Yang, V. S. de Oliveira, D. Laumer, C. M. Heyl, A. Yachmenev, I. Hartl, J. Küpper, J. Mol. Spectrosc. 392 (2023) 111744, https://bib-pubdb1.desy.de/record/580537