Temperature-dependent energy levels of electrons on liquid helium

E. Collin, W. Bailey, P. Fozooni, P. G. Frayne, P. Glasson, K. Harrabi, M. J. Lea*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


We present measurements of the resonant microwave absorption between 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 temperature dependent. The experiments are in agreement with recent theoretical calculations of the renormalization of the electron energy levels due to zero-point and thermal ripplons. The temperature-dependent contribution to the linewidth γ(T) for excitation to the first excited state at 189.6 GHz is compared with other measurements and theoretical predictions.

Original languageEnglish
Article number235427
JournalPhysical Review B
Issue number23
StatePublished - 20 Dec 2017

Bibliographical note

Funding Information:
We thank A. J. Dahm, J. Goodkind, K. Kono, S. A. Lyon, P. J. Meeson, Y. Mukharsky, P. M. Platzman, J. Saunders, and especially M. I. Dykman and D. Konstantinov for discussions and F. Greenough, A. K. Betts, and others for technical support. The work was supported by the EPSRC (UK) Grant No. GR/R12602, by the EU Human Potential Programme under Contract No. HPRN-CT-2000-00157 Surface Electrons, and by Royal Holloway, University of London.

Publisher Copyright:
© 2017 American Physical Society.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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