APS

Hyperfine Structure in the $^{87}$Rb$_{2}$ $1_{g}$ State Below $5^{2}S+5^{2}P_{1/2}$

T. H. Bergeman, Eite Tiesinga, Paul S. Julienne, C.-C. Tsai, Daniel J. Heinzen

Published Jun 1, 2012• 1 citation

OpenAlex

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APS

Hyperfine Structure in the $^{87}$ Rb $_{2}$ $1_{g}$ State Below $5^{2}S+5^{2}P_{1/2}$ Hyperfine Structure in the $^{87}$Rb$_{2}$ $1_{g}$ State Below $5^{2}S+5^{2}P_{1/2}$

T. H. Bergeman, Eite Tiesinga, Paul S. Julienne, C.-C. Tsai, Daniel J. Heinzen

Published Jun 1, 2012• 1 citation

OpenAlex

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Max Peter Baumann, H. Liening, G. Wandel

Jan 1, 19690 citations

Hyperfine Structure in the

^{87}

_{2}

1_{g}

State Below

5^{2}S+5^{2}P_{1/2}

Hyperfine structure measurement of

^{87}

Rb atoms injected into superfluid helium as highly energetic ion beam

Measurements of collisional loss of optically trapped Rb atoms are presented for excitation of the colliding atoms by light tuned near the 5

{\mathit{S}}_{1/2}

\ensuremath{\rightarrow}5

{\mathit{P}}_{1/2}

transitions of

^{85}\mathrm{Rb}

and

^{87}\mathrm{Rb}

. Using the

{\mathit{P}}_{1/2}

state allows the effects of spontaneous emission on excited-state collisions to be studied with minimal complications arising from hyperfine structure. The shapes of the collision spectra are nearly identical for the two isotopes and are consistent with a simple model for the role of spontaneous emission during the collision.

HYPERFINE STRUCTURE OF THE ELECTRONIC GROUND STATES OF Rb

sup 85

AND Rb

sup 8

sup 7

We present measurements of the hyperfine structure (HFS) of the

n{P}_{J}

Rydberg states for a large range of principal quantum number

n

(n=41--55)

employing microwave spectroscopy in an ultracold cesium Rydberg ensemble. A microwave field with $30\text{\ensuremath{-}}\textmu{}\mathrm{s}$ duration couples the $nS\ensuremath{\rightarrow}nP$ transition, yielding a narrow linewidth spectroscopy that approaches the Fourier limit, which allows us to resolve the hyperfine structure of

n{P}_{J}

states. By analyzing the hyperfine splittings of

n{P}_{J}

states, we determine the magnetic dipole HFS coupling constant

{\overline{A}}_{\mathrm{HFS},{P}_{1/2}}=3.760(26)

GHz for the

{P}_{1/2}

state, and

{\overline{A}}_{\mathrm{HFS},{P}_{3/2}}=0.718(27)

GHz and ${\overline{B}}_{\mathrm{HFS},{P}_{3/2}}=\ensuremath{-}0.084(102)$ GHz for the

{P}_{3/2}

state. Systematic uncertainties caused by stray electromagnetic field, microwave field power, and Rydberg interaction are analyzed. This measurement is significant for the investigation of Rydberg electrometry and quantum simulation with dipole interaction involving the

n{P}_{J}

state.

HYPERFINE STRUCTURE OF THE 6s6p

sup 3

sub 1

STATE OF

sup 171

Yb AND

sup 173

Yb.