Thermal atom-ion collisions in a K- Yb+ hybrid system

Hoang, Thai M.; Schwindt, Peter D.  D.; Jau, Yuan-Yu

doi:10.1103/PhysRevA.100.022701

Thermal atom-ion collisions in a K- ${Yb}^{+}$ hybrid system

Journal Article · Thu Aug 01 00:00:00 EDT 2019 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.100.022701· OSTI ID:1559550

Hoang, Thai M. ^[1]; Schwindt, Peter D. D. ^[1]; Jau, Yuan-Yu ^[1]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

We introduce experimental studies of atom-ion collisions using buffer-gas cooled, trapped ytterbium (Yb⁺) ions immersed in potassium (K) vapor. The range of the collisional temperature is on the order of several hundred kelvin (thermal regime). We have determined various collisional rate coefficients of the Yb⁺ ion per K-atom number density. We find the upper bounds of charge-exchange rate coefficients κ_ce to be (12.7 ± 1.6) × 10^-14 cm³s^-1 for K-¹⁷¹Yb⁺ and (5.3 ± 0.7) × 10^-14 cm³s^-1 for K-¹⁷²Yb⁺. For both isotopes, the spin-destruction rate coefficient κ_sd has an upper bound at (1.46 ± 0.77) × 10^-9 cm³s^-1. The spin-exchange rate coefficient κ_se is measured to be (1.64 ± 0.51) × 10^-9 cm³s^-1. The relatively low charge-exchange rate observed here demonstrates the advantage of using K atoms to sympathetically cool Yb⁺ ions and the relatively high spin-exchange rate may benefit research work in quantum metrology and quantum information processing on an atom-ion platform using K atoms and Yb⁺ ions.

View Accepted Manuscript (DOE)

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); Defense Advanced Research Projects Agency (DARPA)

Grant/Contract Number:: AC04-94AL85000; NA0003525

OSTI ID:: 1559550

Alternate ID(s):: OSTI ID: 1546829

Report Number(s):: SAND--2018-13053J; 669941

Journal Information:: Physical Review A, Journal Name: Physical Review A Journal Issue: 2 Vol. 100; ISSN PLRAAN; ISSN 2469-9926

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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