We present an all-optical mass spectrometry technique to identify trapped ions. The new
method uses laser-cooled ions to determine the mass of a cotrapped dark ion with a sub …

The recently demonstrated trapping and laser cooling of 133Ba+ has opened the door to the
use of this nearly ideal atom for quantum information processing. However, before high …

This paper reports the development of a highly efficient, flexible hardware platform, which is
suitable for the control of spin-based quantum systems including quantum computation and …

Ba 133+ 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 …

Compact, high power lasers with narrow linewidth are important tools for the manipulation of
quantum systems. We demonstrate a compact, self-injection locked, Fabry-Perot …

We demonstrate a method of qubit state preparation and measurement (SPAM) based on a
weakly open quantum channel that achieves a higher fidelity than previous demonstrations …

The unstable radium nucleus is appealing for probing new physics due to its high mass,
octupole deformation, and energy level structure. Ion traps, with long hold times and low …

Experiments in Atomic, Molecular, and Optical (AMO) physics require precise and accurate
control of digital, analog, and radio frequency (RF) signals. We present control hardware …

We demonstrate the use of a frequency-doubled optical frequency comb to load, cool, and
crystallize trapped atomic ions as an alternative to ultraviolet (UV) or even deep UV …

Nitrogen-vacancy (NV) centers in diamond are extremely promising solid-state spin
quantum sensors for magnetic field in recent years. The rapid development of NV-ensemble …