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Small diatomic alkali molecules at u...

Wang, Tout Taotao.

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Small diatomic alkali molecules at ultracold temperatures.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Small diatomic alkali molecules at ultracold temperatures./
作者:	Wang, Tout Taotao.
面頁冊數:	117 p.
附註:	Source: Dissertation Abstracts International, Volume: 76-09(E), Section: B.
Contained By:	Dissertation Abstracts International76-09B(E).
標題:	Atomic physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3700547
ISBN:	9781321705416

Small diatomic alkali molecules at ultracold temperatures.
Wang, Tout Taotao.

Small diatomic alkali molecules at ultracold temperatures. - 117 p.

Source: Dissertation Abstracts International, Volume: 76-09(E), Section: B.

Thesis (Ph.D.)--Harvard University, 2015.

This thesis describes experimental work done with two of the smallest diatomic alkali molecules, 6Li2 and 23Na 6Li, each formed out of its constituent atoms at ultracold temperatures. The 23Na6Li molecule was formed for the first time at ultracold temperatures, after previous attempts failed due to an incorrect assignment of Feshbach resonances in the 6Li+23Na system. The experiment represents successful molecule formation around the most difficult Feshbach resonance ever used, and opens up the possibility of transferring NaLi to its spin-triplet ground state, which has both magnetic and electric dipole moments and is expected to be long-lived. For 6Li2, the experimental efforts in this thesis have solved a long-standing puzzle of apparently long lifetimes of closed-channel fermion pairs around a narrow Feshbach resonance, finding that the lifetime is in fact short, as expected in the absence of Pauli suppression of collisions. Moreover, measurements of collisions of Li2 with free Li atoms demonstrates a striking first example of collisions involving molecules at ultracold temperatures described by physics beyond universal long-range van der Waals interactions.

ISBN: 9781321705416Subjects--Topical Terms:

3173870
Atomic physics.

Small diatomic alkali molecules at ultracold temperatures.
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245 1 0 $a Small diatomic alkali molecules at ultracold temperatures.
300 $a 117 p.
500 $a Source: Dissertation Abstracts International, Volume: 76-09(E), Section: B.
500 $a Advisers: John Doyle; Wolfgang Ketterle.
502 $a Thesis (Ph.D.)--Harvard University, 2015.
520 $a This thesis describes experimental work done with two of the smallest diatomic alkali molecules, 6Li2 and 23Na 6Li, each formed out of its constituent atoms at ultracold temperatures. The 23Na6Li molecule was formed for the first time at ultracold temperatures, after previous attempts failed due to an incorrect assignment of Feshbach resonances in the 6Li+23Na system. The experiment represents successful molecule formation around the most difficult Feshbach resonance ever used, and opens up the possibility of transferring NaLi to its spin-triplet ground state, which has both magnetic and electric dipole moments and is expected to be long-lived. For 6Li2, the experimental efforts in this thesis have solved a long-standing puzzle of apparently long lifetimes of closed-channel fermion pairs around a narrow Feshbach resonance, finding that the lifetime is in fact short, as expected in the absence of Pauli suppression of collisions. Moreover, measurements of collisions of Li2 with free Li atoms demonstrates a striking first example of collisions involving molecules at ultracold temperatures described by physics beyond universal long-range van der Waals interactions.
590 $a School code: 0084.
650 4 $a Atomic physics. $3 3173870
650 4 $a Molecular physics. $3 3174737
650 4 $a Condensed matter physics. $3 3173567
650 4 $a Low temperature physics. $3 3173917
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