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Coupling between Rydberg states and Landau levels of electrons trapped on liquid helium | | K.M. Yunusova
; D. Konstantinov
; H. Bouchiat
; A.D. Chepelianskii
; | | Date: |
10 Apr 2019 | | Abstract: | We investigate the coupling between Rydberg states of electrons trapped on a
liquid Helium surface and Landau levels induced by a perpendicular magnetic
field. We show that this realises a prototype quantum system equivalent to an
atom in a cavity, where their coupling strength can be tuned by a parallel
magnetic field. We determine experimentally the renormalisation of the atomic
transition energies induced by the coupling to the cavity, which can be seen as
an analogue of the Lamb shift. When the coupling is sufficiently strong the
transition between the ground and first excited Rydberg states splits into two
resonances corresponding to dressed states with vacuum and one photon in the
cavity. Our results are in quantitative agreement with the energy shifts
predicted by the effective atom in a cavity model where all parameters are
known with high accuracy. | | Source: | arXiv, 1904.5035 | | Services: | Forum | Review | PDF | Favorites | |
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