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

Abstract

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 κce 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 κsd has an upper bound at (1.46 ± 0.77) × 10-9 cm3s-1. The spin-exchange rate coefficient κse 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.

Authors:
 [1];  [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); Defense Advanced Research Projects Agency (DARPA)
OSTI Identifier:
1559550
Alternate Identifier(s):
OSTI ID: 1546829
Report Number(s):
SAND-2018-13053J
Journal ID: ISSN 2469-9926; PLRAAN; 669941; TRN: US2000367
Grant/Contract Number:  
AC04-94AL85000; NA0003525
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 100; Journal Issue: 2; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Hoang, Thai M., Schwindt, Peter D. D., and Jau, Yuan-Yu. Thermal atom-ion collisions in a K- Yb+ hybrid system. United States: N. p., 2019. Web. doi:10.1103/PhysRevA.100.022701.
Hoang, Thai M., Schwindt, Peter D. D., & Jau, Yuan-Yu. Thermal atom-ion collisions in a K- Yb+ hybrid system. United States. doi:https://doi.org/10.1103/PhysRevA.100.022701
Hoang, Thai M., Schwindt, Peter D. D., and Jau, Yuan-Yu. Thu . "Thermal atom-ion collisions in a K- Yb+ hybrid system". United States. doi:https://doi.org/10.1103/PhysRevA.100.022701. https://www.osti.gov/servlets/purl/1559550.
@article{osti_1559550,
title = {Thermal atom-ion collisions in a K- Yb+ hybrid system},
author = {Hoang, Thai M. and Schwindt, Peter D. D. and Jau, Yuan-Yu},
abstractNote = {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 κce 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 κsd has an upper bound at (1.46 ± 0.77) × 10-9 cm3s-1. The spin-exchange rate coefficient κse 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.},
doi = {10.1103/PhysRevA.100.022701},
journal = {Physical Review A},
number = 2,
volume = 100,
place = {United States},
year = {2019},
month = {8}
}

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