Roaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules

Abstract Perfectly controlled molecules are at the forefront of the quest to explore chemical reactivity at ultra low temperatures. Here, we investigate for the first time the formation of the long-lived intermediates in the time-dependent scattering of cold bialkali $$^{23}\hbox {Na}^{87}$$ 23 Na 8...

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Autores principales:	Jacek Kłos, Qingze Guan, Hui Li, Ming Li, Eite Tiesinga, Svetlana Kotochigova
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/79c042d4a8924efe816b60e88d919453
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spelling	oai:doaj.org-article:79c042d4a8924efe816b60e88d9194532021-12-02T16:51:20ZRoaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules10.1038/s41598-021-90004-02045-2322https://doaj.org/article/79c042d4a8924efe816b60e88d9194532021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90004-0https://doaj.org/toc/2045-2322Abstract Perfectly controlled molecules are at the forefront of the quest to explore chemical reactivity at ultra low temperatures. Here, we investigate for the first time the formation of the long-lived intermediates in the time-dependent scattering of cold bialkali $$^{23}\hbox {Na}^{87}$$ 23 Na 87 Rb molecules with and without the presence of infrared trapping light. During the nearly 50 nanoseconds mean collision time of the intermediate complex, we observe unconventional roaming when for a few tens of picoseconds either NaRb or $$\hbox {Na}_2$$ Na 2 and $$\hbox {Rb}_2$$ Rb 2 molecules with large relative separation are formed before returning to the four-atom complex. We also determine the likelihood of molecular loss when the trapping laser is present during the collision. We find that at a wavelength of 1064 nm the $$\hbox {Na}_2\hbox {Rb}_2$$ Na 2 Rb 2 complex is quickly destroyed and thus that the $$^{23}\hbox {Na}^{87}$$ 23 Na 87 Rb molecules are rapidly lost.Jacek KłosQingze GuanHui LiMing LiEite TiesingaSvetlana KotochigovaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jacek Kłos Qingze Guan Hui Li Ming Li Eite Tiesinga Svetlana Kotochigova Roaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules
description	Abstract Perfectly controlled molecules are at the forefront of the quest to explore chemical reactivity at ultra low temperatures. Here, we investigate for the first time the formation of the long-lived intermediates in the time-dependent scattering of cold bialkali $$^{23}\hbox {Na}^{87}$$ 23 Na 87 Rb molecules with and without the presence of infrared trapping light. During the nearly 50 nanoseconds mean collision time of the intermediate complex, we observe unconventional roaming when for a few tens of picoseconds either NaRb or $$\hbox {Na}_2$$ Na 2 and $$\hbox {Rb}_2$$ Rb 2 molecules with large relative separation are formed before returning to the four-atom complex. We also determine the likelihood of molecular loss when the trapping laser is present during the collision. We find that at a wavelength of 1064 nm the $$\hbox {Na}_2\hbox {Rb}_2$$ Na 2 Rb 2 complex is quickly destroyed and thus that the $$^{23}\hbox {Na}^{87}$$ 23 Na 87 Rb molecules are rapidly lost.
format	article
author	Jacek Kłos Qingze Guan Hui Li Ming Li Eite Tiesinga Svetlana Kotochigova
author_facet	Jacek Kłos Qingze Guan Hui Li Ming Li Eite Tiesinga Svetlana Kotochigova
author_sort	Jacek Kłos
title	Roaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules
title_short	Roaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules
title_full	Roaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules
title_fullStr	Roaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules
title_full_unstemmed	Roaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules
title_sort	roaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/79c042d4a8924efe816b60e88d919453
work_keys_str_mv	AT jacekkłos roamingpathwaysandsurvivalprobabilityinrealtimecollisionaldynamicsofcoldandcontrolledbialkalimolecules AT qingzeguan roamingpathwaysandsurvivalprobabilityinrealtimecollisionaldynamicsofcoldandcontrolledbialkalimolecules AT huili roamingpathwaysandsurvivalprobabilityinrealtimecollisionaldynamicsofcoldandcontrolledbialkalimolecules AT mingli roamingpathwaysandsurvivalprobabilityinrealtimecollisionaldynamicsofcoldandcontrolledbialkalimolecules AT eitetiesinga roamingpathwaysandsurvivalprobabilityinrealtimecollisionaldynamicsofcoldandcontrolledbialkalimolecules AT svetlanakotochigova roamingpathwaysandsurvivalprobabilityinrealtimecollisionaldynamicsofcoldandcontrolledbialkalimolecules
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Roaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules

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