Narrow-line magneto-optical trap of titanium atoms

ORAL

Abstract

Ultracold titanium possesses favourable properties for optical metrology and studies of spin-orbit coupling. Here, we present a magneto-optical trap (MOT) of titanium on a narrow transition (Γ/2𝜋 = 11.3 kHz). This second-stage, narrow-line MOT reduces the temperature of atoms by more than an order of magnitude compared to the initial broad-line MOT, cooling atoms to <2 μK. We report the lifetime, constrain two-body losses and branching ratio, and show the spontaneous spin-polarization of atoms in the narrow-line MOT. Finally, we discuss next steps towards achieving a quantum degenerate gas of titanium atoms.

*We gratefully acknowledge funding provided by the Heising-Simons Foundation, the ARO, the ONR, the DOE, and the NSF. RD acknowledges support from the DOD ONR through the NDSEG Fellowship.

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Publication: We are currently preparing a paper detailing the Ti narrow-line MOT.

Presenters

  • Rowan Duim

    • University of California, Berkeley

Authors

  • Rowan Duim

    • University of California, Berkeley

  • Scott E Eustice

    • University of California, Berkeley

  • Jack Schrott

    • University of California, Berkeley

  • Hiromitsu Sawaoka

    • Harvard University
    • University of California, Berkeley

  • Dan M Stamper-Kurn

    • University of California, Berkeley