Please use this identifier to cite or link to this item:
Title: Collisional cooling of light ions by cotrapped heavy atoms
Authors: Dutta, Sourav
Sawant, Rahul
Rangwala, S.A.
Issue Date: Mar-2017
Publisher: American Physical Society
Citation: Physical Review Letters, 2017, Vol. 118, p 113401
Abstract: We experimentally demonstrate cooling of trapped ions by collisions with cotrapped, higher-mass neutral atoms. It is shown that the lighter 39K+ ions, created by ionizing 39K atoms in a magneto-optical trap (MOT), when trapped in an ion trap and subsequently allowed to cool by collisions with ultracold, heavier 85Rb atoms in a MOT, exhibit a longer trap lifetime than without the localized 85Rb MOT atoms. A similar cooling of trapped 85Rb+ ions by ultracold 133Cs atoms in a MOT is also demonstrated in a different experimental configuration to validate this mechanism of ion cooling by localized and centered ultracold neutral atoms. Our results suggest that the cooling of ions by localized cold atoms holds for any mass ratio, thereby enabling studies on a wider class of atom-ion systems irrespective of their masses.
Description: Open Access
ISSN: 0031-9007
Alternative Location:
Copyright: 2017 American Physical Society
Appears in Collections:Research Papers (LAMP)

Files in This Item:
File Description SizeFormat 
2017_PRL_118_113401.pdfOpen Access968.56 kBAdobe PDFView/Open

Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.