A three-dimensional optical lattice of ytterbium and lithium atomic gas mixture

Hideaki Hara, Hideki Konishi, Shuta Nakajima, Yosuke Takasu, Yoshiro Takahashi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We develop an optical lattice system for an ultracold atomic gas mixture of ytterbium (174Yb) and lithium (6Li), which is an ideal system for studying disorder and impurity problems. We load a Bose-Einstein condensate of 174Yb into a three-dimensional optical lattice and observe its interference patterns in time-of-flight (TOF) images. Furthermore, we perform laser spectroscopy of 174Yb in an optical lattice using the ultranarrow optical transition 1S0-3P 2 in both cases with and without 6Li. Owing to the weak interspecies interaction, we do not observe clear effects of 6Li in the obtained interference patterns or excitation spectra. However, this is an important first step in the optical control of atomic impurity in ultracold fermions. We also measure the polarizabilities of the 3P2 state of 174Yb atoms in an optical trap with a wavelength of 1070 nm. We reveal that the polarizability can be tuned to be positive, zero, or the same as the ground state, which is useful for certain applications.

Original languageEnglish
Article number014003
JournalJournal of the Physical Society of Japan
Volume83
Issue number1
DOIs
Publication statusPublished - Jan 15 2014
Externally publishedYes

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monatomic gases
ytterbium
gas mixtures
lithium
interference
impurities
optical control
laser spectroscopy
Bose-Einstein condensates
optical transition
fermions
traps
disorders
ground state
wavelengths
excitation
atoms

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

A three-dimensional optical lattice of ytterbium and lithium atomic gas mixture. / Hara, Hideaki; Konishi, Hideki; Nakajima, Shuta; Takasu, Yosuke; Takahashi, Yoshiro.

In: Journal of the Physical Society of Japan, Vol. 83, No. 1, 014003, 15.01.2014.

Research output: Contribution to journalArticle

Hara, Hideaki ; Konishi, Hideki ; Nakajima, Shuta ; Takasu, Yosuke ; Takahashi, Yoshiro. / A three-dimensional optical lattice of ytterbium and lithium atomic gas mixture. In: Journal of the Physical Society of Japan. 2014 ; Vol. 83, No. 1.
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