Temperature Dependent Energy Levels of Electrons on Liquid Helium

Autor: Collin, E., Bailey, W., Fozooni, P., Frayne, P. G., Glasson, P., Harrabi, K., Lea, M. J.
Rok vydání: 2017
Předmět:
Zdroj: Phys. Rev. B 96, 235427 (2017)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevB.96.235427
Popis: We present measurements of the resonant microwave absorption by the Rydberg energy levels of surface state electrons on the surface of superfluid liquid helium, in the frequency range 165 - 220 GHz. The resonant frequency was strongly temperature dependent from 0.1 to 2 K. The experiments are in agreement with recent theoretical calculations of the renormalisation of the electron energy levels due to zero-point and thermal ripplons, analogous to a condensed matter Lamb shift. The temperature-dependent contribution to the linewidth for excitation to the first excited state at 189.6 GHz is compared with other measurements and theoretical predictions.
Comment: 24 pages, 9 figures
Databáze: arXiv