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6 papers · 2 filters
Magic-zero wavelengths of alkali-metal atoms and their applications
Bindiya Arora, M. S. Safronova, Charles W. Clark
Using first-principles calculations, we identify "magic-zero" optical wavelengths, λ_zero, for which the ground-state frequency-dependent polarizabilities of alkali-metal atoms van…
Multichannel Quantum Defect Theory for cold molecular collisions
James F. E. Croft, Alisdair O. G. Wallis, Jeremy M. Hutson +1
Multichannel Quantum Defect Theory (MQDT) is shown to be capable of producing quantitatively accurate results for low-energy atom-molecule scattering calculations. With a suitable…
Precision calculation of blackbody radiation shifts for optical frequency metrology
M. S. Safronova, M. G. Kozlov, Charles W. Clark
We show that three group IIIB divalent ions, B+, Al+, and In+, have anomalously small blackbody radiation (BBR) shifts of the ns^2 1S0 - nsnp 3P0 clock transitions. The fractional…
Multichannel quantum-defect theory for ultracold atom-ion collisions
Zbigniew Idziaszek, Andrea Simoni, Tommaso Calarco +1
We develop an analytical model for ultracold atom-ion collisions using the multichannel quantum-defect formalism. The model is based on the analytical solutions of the r^-4 long-ra…
Systematic study of Optical Feshbach Resonances in an ideal gas
S. Blatt, T. L. Nicholson, B. J. Bloom +4
Using a narrow intercombination line in alkaline earth atoms to mitigate large inelastic losses, we explore the Optical Feshbach Resonance (OFR) effect in an ultracold gas of boson…
A pulsed Sisyphus scheme for laser cooling of atomic (anti)hydrogen
Saijun Wu, Roger C. Brown, William D. Phillips +1
We propose a laser cooling technique in which atoms are selectively excited to a dressed metastable state whose light shift and decay rate are spatially correlated for Sisyphus coo…