Temperature-dependent energy levels of electrons on liquid helium

Eddy Collin, William Bailey, P. Fozooni, P. G. Frayne, P. H. Glasson, K. Harrabi, Michael John Lea

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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
Pages (from-to)1-7
Number of pages7
JournalPhysical Review B
Issue number23
Publication statusPublished - 20 Dec 2017

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