381 citations · 1.3k across the 15 of their papers we have counts for
15 papers
Near-deterministic loading of optical tweezer arrays via repulsive barricade potentials
Archie C. Baldock, Alex J. Matthies, Luke Caldwell +1
Optical tweezers are a powerful tool for creating defect-free arrays of atoms and molecules, enabling advances in quantum simulation, computation, and precision metrology. However,…
Opportunities for Fundamental Physics Research with Radioactive Molecules
Gordon Arrowsmith-Kron, Michail Athanasakis-Kaklamanakis, Mia Au +59
Molecules containing short-lived, radioactive nuclei are uniquely positioned to enable a wide range of scientific discoveries in the areas of fundamental symmetries, astrophysics,…
A new bound on the electron's electric dipole moment
Tanya S. Roussy, Luke Caldwell, Trevor Wright +8
The Standard Model cannot explain the dominance of matter over anti-matter in our universe. This imbalance indicates undiscovered physics that violates combined CP symmetry. Many e…
Systematic and statistical uncertainty evaluation of the HfF electron electric dipole moment experiment
Luke Caldwell, Tanya S. Roussy, Trevor Wright +8
We have completed a new precision measurement of the electron's electric dipole moment using trapped HfF in rotating bias fields. We report on the accuracy evaluation of this m…
Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson
Joonseok Hur, Diana P. L. Aude Craik, Ian Counts +12
Optical precision spectroscopy of isotope shifts can be used to test for new forces beyond the Standard Model, and to determine basic properties of atomic nuclei. We measure isotop…
Spectroscopy on the eEDM-sensitive states of ThF
Kia Boon Ng, Yan Zhou, Lan Cheng +8
An excellent candidate molecule for the measurement of the electron's electric dipole moment (eEDM) is thorium monofluoride (ThF) because the eEDM-sensitive state, , is…
Collisions Between Ultracold Molecules and Atoms in a Magnetic Trap
S. Jurgilas, A. Chakraborty, C. J. H. Rich +7
We prepare mixtures of ultracold CaF molecules and Rb atoms in a magnetic trap and study their inelastic collisions. When the atoms are prepared in the spin-stretched state and the…
A general approach to state-dependent optical tweezer traps for polar molecules
L. Caldwell, M. R. Tarbutt
State-dependent optical tweezers can be used to trap a pair of molecules with a separation much smaller than the wavelength of the trapping light, greatly enhancing the dipole-dipo…
Enhancing dipolar interactions between molecules using state-dependent optical tweezer traps
L. Caldwell, M. R. Tarbutt
We show how state-dependent optical potentials can be used to trap a pair of molecules in different internal states at a separation much smaller than the wavelength of the trapping…
Sideband cooling of molecules in optical traps
L. Caldwell, M. R. Tarbutt
Sideband cooling is a popular method for cooling atoms to the ground state of an optical trap. Applying the same method to molecules requires a number of challenges to be overcome.…
Long rotational coherence times of molecules in a magnetic trap
L. Caldwell, H. J. Williams, N. J. Fitch +4
Polar molecules in superpositions of rotational states exhibit long-range dipolar interactions, but maintaining their coherence in a trapped sample is a challenge. We present calcu…
Deep laser cooling and efficient magnetic compression of molecules
L. Caldwell, J. A. Devlin, H. J. Williams +4
We introduce a scheme for deep laser cooling of molecules based on robust dark states at zero velocity. By simulating this scheme, we show it to be a widely applicable method that…
Ultracold molecules for quantum simulation: rotational coherences in CaF and RbCs
Jacob A Blackmore, Luke Caldwell, Philip D Gregory +9
We explore the uses of ultracold molecules as a platform for future experiments in the field of quantum simulation, focusing on two molecular species, CaF and …
Magnetic trapping and coherent control of laser-cooled molecules
H. J. Williams, L. Caldwell, N. J. Fitch +5
We demonstrate coherent microwave control of the rotational, hyperfine and Zeeman states of ultracold CaF molecules, and the magnetic trapping of these molecules in a single, selec…
Molecules cooled below the Doppler limit
S. Truppe, H. J. Williams, M. Hambach +5
The ability to cool atoms below the Doppler limit -- the minimum temperature reachable by Doppler cooling -- has been essential to most experiments with quantum degenerate gases, o…