Properties of the ground 3F2 state and the excited 3P0 state of atomic thorium in cold collisions with 3He

被引：2

作者：

Au, Yat Shan ^{[1
,3
]}

Connolly, Colin B. ^{[1
,3
]}

Ketterle, Wolfgang ^{[2
,3
]}

Doyle, John M. ^{[1
,3
]}

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] MIT, Dept Phys, Cambridge, MA 02139 USA

[3] Harvard MIT Ctr Ultracold Atoms, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW A | 2014年 / 90卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.90.032702

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Inelastic cross sections for collisions between thorium (Th) and helium (He-3) are measured. For Th[F-3(2)]-He-3, we determine the ratio of momentum transfer to Zeeman relaxation cross sections to be gamma similar to 500 at 800 mK. For Th[P-3(0)]-He-3, we find no quenching of this metastable state during 10(6) collisions. We measure the radiative lifetime of Th[P-3(0)] to be tau > 130 ms. The observed stability of Th[P-3(0)] opens up the possibility of trapping this metastable species.

引用

页数：4

共 50 条

[11] OPTICAL ORIENTATION OF 3P0 GROUND STATE OF PB207 [J].

GIBBS, HM ;

CHANG, B ;

GREENHOW, RC .

PHYSICAL REVIEW LETTERS, 1969, 22 (07) :270-&

[12] Hypersensitive transition 3P0 → 3F2 of Pr3+ related to the polarizability and structure of glass host [J].

Tikhomirov, VK ;

Tikhomirova, SA .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2000, 274 (1-3) :50-54

[13] Discovery of an excited pair state in superfluid 3He [J].

Davis, J. P. ;

Pollanen, J. ;

Choi, H. ;

Sauls, J. A. ;

Halperin, W. P. .

NATURE PHYSICS, 2008, 4 (07) :571-575

[14] Discovery of an excited pair state in superfluid 3He [J].

J. P. Davis ;

J. Pollanen ;

H. Choi ;

J. A. Sauls ;

W. P. Halperin .

Nature Physics, 2008, 4 :571-575

[15] Ground state properties of liquid 3He in the presence of magnetic field [J].

Bordbar, G. H. ;

Sabet, M. T. Mohammadi ;

Dehghani, M. .

IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A-SCIENCE, 2015, 39 (A2) :199-204

[16] Zeeman relaxation of cold atomic iron and nickel in collisions with 3He [J].

Johnson, Cort ;

Newman, Bonna ;

Brahms, Nathan ;

Doyle, John M. ;

Kleppner, Daniel ;

Greytak, Thomas J. .

PHYSICAL REVIEW A, 2010, 81 (06)

[17] Ground state of 3He atoms in narrow tube [J].

Okaue, Yoshitsugu ;

Saiga, Yasuhiro ;

Hirashima, Dai S. .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (05)

[18] GROUND-STATE AND LOW-EXCITED PROPERTIES OF LIQUID 3HE CALCULATED WITH A 2-BODY POTENTIAL [J].

BURKHARDT, TW .

ANNALS OF PHYSICS, 1968, 47 (03) :516-+

[19] 2P FINAL-STATE INTERACTION IN 3HE(3HE,ALPHA) 2P REACTION [J].

SLOBODRIAN, RJ ;

MCKEE, JSC ;

TIVOL, WF ;

CLARK, DJ ;

TOMBRELLO, TA .

PHYSICS LETTERS B, 1967, B 25 (01) :19-+

[20] Analog giant resonances excited by (p,n),(n,p),(π±,γ0), (π+,π-)(d, 2He), (t, 3He) and (3He, 3H) Reactions [J].

Hanna, SS .

NUCLEAR PHYSICS A, 1999, 649 :271C-274C

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