Reactions of ultracold alkali-metal dimers

被引：198

作者：

Zuchowski, Piotr S. ^{[1
]}

Hutson, Jeremy M. ^{[1
]}

机构：

[1] Univ Durham, Dept Chem, Durham DH1 3LE, England

来源：

PHYSICAL REVIEW A | 2010年 / 81卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

GROUND ELECTRONIC-STATE; CORE-POLARIZATION; SPECTROSCOPY; PSEUDOPOTENTIALS; X-1-SIGMA(+)(G); POTENTIALS; GAS; NA;

D O I：

10.1103/PhysRevA.81.060703

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the energetics of reactions involving pairs of alkali-metal dimers. Atom exchange reactions to form homonuclear dimers are energetically allowed for some but not all of the heteronuclear dimers. We carry out high-level electronic structure calculations on the potential energy surfaces of all the heteronuclear alkali-metal trimers and show that trimer formation reactions are always energetically forbidden for low-lying singlet states of the dimers. The results have important implications for the stability of quantum gases of alkali-metal dimers.

引用

收藏

页数：4

相关论文

共 41 条

[1] The Cs2 ground electronic state by Fourier transform spectroscopy:: Dispersion coefficients [J].

Amiot, C ;

Dulieu, O .

JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (11) :5155-5164

[2] Cold and ultracold molecules: science, technology and applications [J].

Carr, Lincoln D. ;

DeMille, David ;

Krems, Roman V. ;

Ye, Jun .

NEW JOURNAL OF PHYSICS, 2009, 11

[3] Application of direct potential fitting to line position data for the X1Σ+g and A1Σu+ states of Li2 [J].

Coxon, JA ;

Melville, TC .

JOURNAL OF MOLECULAR SPECTROSCOPY, 2006, 235 (02) :235-247

[4] Interactions and dynamics in Li+Li2 ultracold collisions [J].

Cvitas, Marko T. ;

Soldan, Pavel ;

Hutson, Jeremy M. ;

Honvault, Pascal ;

Launay, Jean-Michel .

JOURNAL OF CHEMICAL PHYSICS, 2007, 127 (07)

[5] Ultracold Li+Li2 collisions:: Bosonic and fermionic cases -: art. no. 033201 [J].

Cvitas, MT ;

Soldán, P ;

Hutson, JM ;

Honvault, P ;

Launay, JM .

PHYSICAL REVIEW LETTERS, 2005, 94 (03)

[6] Ultracold collisions involving heteronuclear alkali metal dimers -: art. no. 200402 [J].

Cvitas, MT ;

Soldán, P ;

Hutson, JM ;

Honvault, P ;

Launay, JM .

PHYSICAL REVIEW LETTERS, 2005, 94 (20)

[7] Quantum gas of deeply bound ground state molecules [J].

Danzl, Johann G. ;

Haller, Elmar ;

Gustavsson, Mattias ;

Mark, Manfred J. ;

Hart, Russell ;

Bouloufa, Nadia ;

Dulieu, Olivier ;

Ritsch, Helmut ;

Naegerl, Hanns-Christoph .

SCIENCE, 2008, 321 (5892) :1062-1066

[8] An ultracold high-density sample of rovibronic ground-state molecules in an optical lattice [J].

Danzl, Johann G. ;

Mark, Manfred J. ;

Haller, Elmar ;

Gustavsson, Mattias ;

Hart, Russell ;

Aldegunde, Jesus ;

Hutson, Jeremy M. ;

Naegerl, Hanns-Christoph .

NATURE PHYSICS, 2010, 6 (04) :265-270

[9] Formation of ultracold polar molecules in the rovibrational ground state [J].

Deiglmayr, J. ;

Grochola, A. ;

Repp, M. ;

Moertlbauer, K. ;

Glueck, C. ;

Lange, J. ;

Dulieu, O. ;

Wester, R. ;

Weidemueller, M. .

PHYSICAL REVIEW LETTERS, 2008, 101 (13)

[10] The coupling of the X1Σ+ and a3Σ+ states of the atom pair Na plus Cs and modelling cold collisions [J].

Docenko, O. ;

Tamanis, M. ;

Zaharova, J. ;

Ferber, R. ;

Pashov, A. ;

Knoeckel, H. ;

Tiemann, E. .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2006, 39 (19) :S929-S943

← 1 2 3 4 5 →