Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Physical Review A

Avoided level crossings betweensstates and Stark states in Rydberg Rb atoms

M. Gatzke, James Veale, W. R. Swindell, Thomas F. Gallagher

Published Sep 1, 1996• 7 citations
Publisher

Abstract

We have measured the locations and widths of the avoided level crossings between (n+3)s states and n,k Stark states in Rydberg Rb atoms with principal quantum numbers n between 16 and 25. We use two-step laser excitation to excite (n+3)s states in the presence of an electric field and observe a change in the number of atoms driven to higher-lying states by blackbody radiation as the electric field is tuned through the avoided level crossings. We have measured both the positions and widths of the avoided crossings. \textcopyright{} 1996 The American Physical Society.

DOI
10.1103/physreva.54.2492

Related papers

A novel method for the calculation of widths for avoided crossings of the highly excited Stark states: detailed implementation for alkali-metal atoms

Yong-Lin He

We have presented a novel method to calculate the widths of the avoided crossings of Rydberg states in a static electric field. The widths of avoided crossings can be decided not directly connected by scanning the static field, but indirectly connected through the Stark electric dipole moments. The method is restricted to the case in which both the two relevant states have linear Stark shifts or only one of the two involved states has linear Stark shifts, but another has no Stark shift. As test examples, we calculated the widths of avoided crossings of Li, Na and K. The Stark electric dipole moments are determined by using the Stark state wavefunctions which are obtained from the diagonalization method at a fixed static electric field amplitude. The results are in excellent agreement with experimental and other theoretical data.

Journal of Physics B Atomic Molecular and Optical Physics•Dec 9, 2011•6 citations

Anticrossing Spectroscopy of Rydberg Atoms Using Blackbody Radiation

R. C. Stoneman, Thomas F. Gallagher

We report the observation of anticrossing signals arising from the interaction of 300-K blackbody radiation with Rydberg atoms near avoided crossings of Stark levels. The role of the blackbody radiation is roughly analogous to that of the resonance fluorescence in traditional anticrossing spectroscopy. We present preliminary results for avoided crossings of $\mathrm{ns}$ states with $n\ensuremath{-}2$ Stark states in potassium for $n$ in the range 18-21.

Physical Review Letters•Dec 2, 1985•21 citations

High-lying Rydberg states of barium in crossed fields

A M Abdulla, S. D. Hogan, M S Zhan +1 more

We report recent experimental developments in the study of high-lying Rydberg states of atomic barium in crossed external electric and magnetic fields. By employing a new, high resolution, pulsed laser system in conjunction with the experimental geometry we have previously used, we have been able to extend our investigations closer to the semiclassical limit. We have compiled Stark maps which clearly indicate changes in dynamics that take place as the electric field strength is increased for a fixed magnetic field strength of 1 T. We comment on these changes and draw comparisons with those observed previously at lower principal quantum number, lower spectral resolution and higher magnetic field strength.

Journal of Physics B Atomic Molecular and Optical Physics•Apr 1, 2004•14 citations

Experimental and theoretical study of Stark patterns in Rb Rydberg levels

Eliane Luc-Koenig, Sylvain Liberman, Jacques Pinard

Stark patterns of high-lying excited states of rubidium (Rydberg states $n\ensuremath{\sim}48$) in electric fields from 0 to 20 V/cm have been studied both experimentally and theoretically. Recordings have been obtained with high-resolution laser techniques. Theoretical interpretation takes into account a great number of close-lying levels in the diagonalization process. In order to reproduce the positions as well as the intensities of the one-photon transitions from the ground state, it is necessary to use for $s$, $p$, and $d$ levels the wave functions calculated from a central potential specific to the Rb spectrum.

Physical Review A•Aug 1, 1979•20 citations

Observation of the avoided crossing of Cs Rydberg Stark states

Limei Wang, Hao Zhang, Changyong Li +2 more

The Stark effect of ultra-cold Cs Rydberg atom is investigated in a magneto-optical trap, and the avoided crossing between nS state and (n-4) manifold is observed. The ion spectrum near the avoided crossing is obtained by using state-selective field pulse ionization technique. By changing the intensity of the applied electric field, we find that the relative intensities of two Stark states near the avoided crossing exchange obviously. Furthermore, state transfer from nS Rydberg state to high-l state due to the avoided crossing is also obtained.

Acta Physica Sinica•Jan 1, 2013•7 citations

Interaction of xenon Rydberg atoms near a metallic surface in an electric field

Chris Oubre

We investigate the interaction of a xenon Rydberg atom with a metallic surface in an electric field. We also present a Stark map for xenon Rydberg atoms. The xenon Rydberg atom is modeled using a pseudopotential fitted to experimentally obtained quantum defects. We show that several xenon levels exhibit avoided crossings with the application of a DC electric field. Additional avoided crossings occur as the xenon Rydberg atom approaches a surface. These avoided crossings lead to mixing between levels of different principal quantum number n. Nonadiabatic transition through these avoided crossings can explain recent results involving ionization of state-selected xenon Rydberg atoms near a metal surface.

•Jan 1, 2003•0 citations
We have measured the locations and widths of the avoided level crossings between (n+3)s states and n,k Stark states in Rydberg Rb atoms with principal quantum numbers n between 16 and 25. We use two-step laser excitation to excite (n+3)s states in the presence of an electric field and observe a change in the number of atoms driven to higher-lying states by blackbody radiation as the electric field is tuned through the avoided level crossings. We have measured both the positions and widths of the avoided crossings. \textcopyright{} 1996 The American Physical Society.
We have presented a novel method to calculate the widths of the avoided crossings of Rydberg states in a static electric field. The widths of avoided crossings can be decided not directly connected by scanning the static field, but indirectly connected through the Stark electric dipole moments. The method is restricted to the case in which both the two relevant states have linear Stark shifts or only one of the two involved states has linear Stark shifts, but another has no Stark shift. As test examples, we calculated the widths of avoided crossings of Li, Na and K. The Stark electric dipole moments are determined by using the Stark state wavefunctions which are obtained from the diagonalization method at a fixed static electric field amplitude. The results are in excellent agreement with experimental and other theoretical data.
We report the observation of anticrossing signals arising from the interaction of 300-K blackbody radiation with Rydberg atoms near avoided crossings of Stark levels. The role of the blackbody radiation is roughly analogous to that of the resonance fluorescence in traditional anticrossing spectroscopy. We present preliminary results for avoided crossings of ns\mathrm{ns}ns states with $n\ensuremath{-}2$ Stark states in potassium for nnn in the range 18-21.
We report recent experimental developments in the study of high-lying Rydberg states of atomic barium in crossed external electric and magnetic fields. By employing a new, high resolution, pulsed laser system in conjunction with the experimental geometry we have previously used, we have been able to extend our investigations closer to the semiclassical limit. We have compiled Stark maps which clearly indicate changes in dynamics that take place as the electric field strength is increased for a fixed magnetic field strength of 1 T. We comment on these changes and draw comparisons with those observed previously at lower principal quantum number, lower spectral resolution and higher magnetic field strength.
Stark patterns of high-lying excited states of rubidium (Rydberg states $n\ensuremath{\sim}48$) in electric fields from 0 to 20 V/cm have been studied both experimentally and theoretically. Recordings have been obtained with high-resolution laser techniques. Theoretical interpretation takes into account a great number of close-lying levels in the diagonalization process. In order to reproduce the positions as well as the intensities of the one-photon transitions from the ground state, it is necessary to use for sss, ppp, and ddd levels the wave functions calculated from a central potential specific to the Rb spectrum.
The Stark effect of ultra-cold Cs Rydberg atom is investigated in a magneto-optical trap, and the avoided crossing between nS state and (n-4) manifold is observed. The ion spectrum near the avoided crossing is obtained by using state-selective field pulse ionization technique. By changing the intensity of the applied electric field, we find that the relative intensities of two Stark states near the avoided crossing exchange obviously. Furthermore, state transfer from nS Rydberg state to high-l state due to the avoided crossing is also obtained.
We investigate the interaction of a xenon Rydberg atom with a metallic surface in an electric field. We also present a Stark map for xenon Rydberg atoms. The xenon Rydberg atom is modeled using a pseudopotential fitted to experimentally obtained quantum defects. We show that several xenon levels exhibit avoided crossings with the application of a DC electric field. Additional avoided crossings occur as the xenon Rydberg atom approaches a surface. These avoided crossings lead to mixing between levels of different principal quantum number n. Nonadiabatic transition through these avoided crossings can explain recent results involving ionization of state-selected xenon Rydberg atoms near a metal surface.