Measurements in high-L, n=17 and 20 Rydberg states of barium: An investigation of ion core properties of Ba $^{+}$ .Measurements in high-L, n=17 and 20 Rydberg states of barium: An investigation of ion core properties of Ba$^{+}$.

Erica L. Snow, S. R. Lundeen

Bulletin of the American Physical SocietyJun 6, 20070 citations

Spectroscopy of Rare Earth Ions

Renata Reisfeld

Springer eBooksApr 28, 200723 citations

Spectroscopy of a Synthetic Trapped Ion Qubit

David Hucul, Justin E. Christensen, Eric R. Hudson +1 more

^{133}Ba^{+} has been identified as an attractive ion for quantum information processing due to the unique combination of its spin-1/2 nucleus and visible wavelength electronic transitions. Using a microgram source of radioactive material, we trap and laser cool the synthetic A=133 radioisotope of barium II in a radio-frequency ion trap. Using the same, single trapped atom, we measure the isotope shifts and hyperfine structure of the 6^{2}P_{1/2}↔6^{2}S_{1/2} and 6^{2}P_{1/2}↔5^{2}D_{3/2} electronic transitions that are needed for laser cooling, state preparation, and state detection of the clock-state hyperfine and optical qubits. We also report the 6^{2}P_{1/2}↔5^{2}D_{3/2} electronic transition isotope shift for the rare A=130 and 132 barium nuclides, completing the spectroscopic characterization necessary for laser cooling all long-lived barium II isotopes.^{133}Ba^{+} has been identified as an attractive ion for quantum information processing due to the unique combination of its spin-1/2 nucleus and visible wavelength electronic transitions. Using a microgram source of radioactive material, we trap and laser cool the synthetic A=133 radioisotope of barium II in a radio-frequency ion trap. Using the same, single trapped atom, we measure the isotope shifts and hyperfine structure of the 6^{2}P_{1/2}↔6^{2}S_{1/2} and 6^{2}P_{1/2}↔5^{2}D_{3/2} electronic transitions that are needed for laser cooling, state preparation, and state detection of the clock-state hyperfine and optical qubits. We also report the 6^{2}P_{1/2}↔5^{2}D_{3/2} electronic transition isotope shift for the rare A=130 and 132 barium nuclides, completing the spectroscopic characterization necessary for laser cooling all long-lived barium II isotopes.

arXiv:1705.09736Physical Review LettersSep 6, 201740 citations

Measurements in high-L, n=17 and 20 Rydberg states of barium: An investigation of ion core properties of Ba

^{+}