297 citations · 870 across the 12 of their papers we have counts for
12 papers
Progress on Optical Clock Technology for Operational Timescales
S. Peil, W. Tobias, J. Whalen +2
While optical clock technology has advanced rapidly in recent years, incorporating the technology into operational timescales has progressed more slowly. The highest accuracy frequ…
Cold Beam Optical Clock with Multifrequency Spectroscopy
William G. Tobias, Bryan Hemingway, Steven Peil
We demonstrate an optical clock based on Ramsey-Bordé interferometry in a laser-cooled Ca beam. The mean velocity is reduced by an order of magnitude relative to a thermal…
Tunable itinerant spin dynamics with polar molecules
Jun-Ru Li, Kyle Matsuda, Calder Miller +4
Strongly interacting spins underlie many intriguing phenomena and applications ranging from magnetism to quantum information processing. Interacting spins combined with motion disp…
Reactions Between Layer-Resolved Molecules Mediated by Dipolar Exchange
William G. Tobias, Kyle Matsuda, Jun-Ru Li +5
Microscopic control over polar molecules with tunable interactions would enable realization of novel quantum phenomena. Using an applied electric field gradient, we demonstrate lay…
Tuning of dipolar interactions and evaporative cooling in a three-dimensional molecular quantum gas
Jun-Ru Li, William G. Tobias, Kyle Matsuda +8
Ultracold polar molecules possess long-range, anisotropic, and tunable dipolar interactions, providing the opportunities to probe quantum phenomena inaccessible with existing cold…
Dynamical generation of spin squeezing in ultra-cold dipolar molecules
Thomas Bilitewski, Luigi De Marco, Jun-Ru Li +5
We study a bulk fermionic dipolar molecular gas in the quantum degenerate regime confined in a two-dimensional geometry. We consider two rotational states that encode a spin 1/2 de…
Resonant collisional shielding of reactive molecules using electric fields
Kyle Matsuda, Luigi De Marco, Jun-Ru Li +4
Full control of molecular interactions, including reactive losses, would open new frontiers in quantum science. Here, we demonstrate extreme tunability of chemical reaction rates b…
Dipolar evaporation of reactive molecules to below the Fermi temperature
Giacomo Valtolina, Kyle Matsuda, William G. Tobias +3
Molecules are the building blocks of matter and their control is key to the investigation of new quantum phases, where rich degrees of freedom can be used to encode information and…
Quantum Many-Body Physics with Ultracold Polar Molecules: Nanostructured Potential Barriers and Interactions
Andreas Kruckenhauser, Lukas M. Sieberer, William G. Tobias +8
We design dipolar quantum many-body Hamiltonians that will facilitate the realization of exotic quantum phases under current experimental conditions achieved for polar molecules. T…
Thermalization and Sub-Poissonian Density Fluctuations in a Degenerate Molecular Fermi Gas
William G. Tobias, Kyle Matsuda, Giacomo Valtolina +3
We observe thermalization in the production of a degenerate Fermi gas of polar molecules. By measuring the atom--dimer elastic scattering cross se…
A Fermi Degenerate Gas of Polar Molecules
Luigi De Marco, Giacomo Valtolina, Kyle Matsuda +3
It has long been expected that quantum degenerate gases of molecules would open access to a wide range of phenomena in molecular and quantum sciences. However, the very complexity…
A low-temperature external cavity diode laser for broad wavelength tuning
William G. Tobias, Jason S. Rosenberg, Nicholas R. Hutzler +1
We report on the design and characterization of a low-temperature external cavity diode laser (ECDL) system for broad wavelength tuning. The performance achieved with multiple diod…