News

In the past month, the group has put up two new preprints. 

- In the strontium experiment, we report the generation of entangled Bell states, prepared in optical clock qubits, whose phase coherence persists for more than 4 seconds. This uses a gate scheme proposed by M. Martin and I. Deutsch, based on Rydberg-mediated interactions. See the preprint here.

- On the Ytterbium experiment, we report our first results preparing, controlling, and detecting arrays of nuclear spin qubits of ¹⁷¹Yb. We observe high fidelity control with sub-microsecond pulse times. We also demonstrate low-entropy array preparation through deterministic loading techniques via the use of narrow-line transitions and Raman-sideband cooling to near the motional ground state. See the preprint here.

This year’s Q2B (Quantum 2 Business) conference took place on December 7-9 at the Santa Clara Convention Center. Several big names spoke at the event, and it was a place to forge new partnerships and connections. For one lucky JILAn, the trip to this conference was sponsored by CUbit Quantum Initiative, (CUbit). "I am very grateful to Women in Quantum and CUbit for sponsoring me to attend the Q2B conference," Joanna Lis said. Lis is a graduate student within JILA Fellow Adam Kaufman's laboratory. "My research is looking at neutral atoms in tweezers. I was positively surprised on how much presence neutral atom platforms had within the conference," she added.

Our paper on high power light sources at magic wavelengths for neutral atom optical atomic clocks is published in RSI! http://aip.scitation.org/doi/10.1063/5.0057619

A new national quantum research center draws on JILA Fellows' and their expertise to make the United States an international leader in quantum technology.

Congratulations Will!

The Office of Naval Research program rewards early career scientists “who show exceptional promise for doing creative research”—and JILA's Adam Kaufman's work with optical tweezers has earned that recognition.

Our paper was published in science; you can find it here. See also the news highlight by NIST: http://www.nist.gov/news-events/news/2019/09/jilas-novel-atomic-clock-design-offers-tweezer-control

Our recent manuscript — "Microscopic control and detection of ultracold strontium in optical tweezer arrays" — was published in PRX (Phys. Rev. X 8, 041054). See also the viewpoint from Antoine Browaeys (Viewpoint: Alkaline Atoms Held with Optical Tweezers) and the JILA highlight!

We recently posted our first paper on arxiv! We demonstrate tweezer-trapping, single-particle imaging, light-shift free spectroscopy, and three-dimensional ground-state cooling of strontium!

In September, Aaron installed a camera to assemble a timelapse of the lab's development --- it takes a picture every 30 minutes from a corner in the ceiling. Here are some shots from that over the past 4 months, as well as some closeups of our new science system!