Ultracold molecules: new probes on the variation of fundamental constants

被引：99

作者：

Chin, Cheng ^{[1
,2
]}

Flambaum, V. V. ^{[3
,4
]}

Kozlov, M. G. ^{[5
]}

机构：

[1] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

[2] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[3] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia

[4] Massey Univ, New Zealand Inst Adv Study, Auckland, New Zealand

[5] Petersburg Nucl Phys Inst, Gatchina 188300, Russia

来源：

NEW JOURNAL OF PHYSICS | 2009年 / 11卷

基金：

澳大利亚研究理事会;

关键词：

SPACE-TIME VARIATION; GAS; SPECTROSCOPY; CLOCKS; RATIO; MASS;

D O I：

10.1088/1367-2630/11/5/055048

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ultracold molecules offer brand new opportunities to probe the variation of fundamental constants with unprecedented sensitivity. This paper summarizes theoretical background and current constraints on the variation of the fine structure constant and electron-to-proton mass ratio, as well as proposals and experimental efforts to measure the variations based on ultracold molecules. In particular, we describe two novel spectroscopic schemes on ultracold molecules that have greatly enhanced sensitivity to fundamental constants: resonant scattering near Feshbach resonances and spectroscopy on close-lying energy levels of ultracold molecules.

引用

页数：14

共 82 条

[1] Narrow atomic transitions with enhanced sensitivity to variation of the fine structure constant [J].

Angstmann, E. J. ;

Dzuba, V. A. ;

Flambaum, V. V. ;

Nevsky, A. Yu ;

Karshenboim, S. G. .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2006, 39 (08) :1937-1944

[2]

[Anonymous], NIST PHYS REF DAT

[3] α dependence of transition frequencies for some ions of Ti, Mn, Na, C, and O and the search for variation of the fine-structure constant -: art. no. 064101 [J].

Berengut, JC ;

Dzuba, VA ;

Flambaum, VV ;

Marchenko, MV .

PHYSICAL REVIEW A, 2004, 70 (06) :064101-1

[4] Testing the stability of fundamental constants with the 199Hg+ single-ion optical clock -: art. no. 150802 [J].

Bize, S ;

Diddams, SA ;

Tanaka, U ;

Tanner, CE ;

Oskay, WH ;

Drullinger, RE ;

Parker, TE ;

Heavner, TP ;

Jefferts, SR ;

Hollberg, L ;

Itano, WM ;

Bergquist, JC .

PHYSICAL REVIEW LETTERS, 2003, 90 (15) :4-150802

[5]

BIZE S, 2005, ARXIVPHYSICS0502117

[6] New limits on coupling of fundamental constants to gravity using 87Sr optical lattice clocks [J].

Blatt, S. ;

Ludlow, A. D. ;

Campbell, G. K. ;

Thomsen, J. W. ;

Zelevinsky, T. ;

Boyd, M. M. ;

Ye, J. ;

Baillard, X. ;

Fouche, M. ;

Le Targat, R. ;

Brusch, A. ;

Lemonde, P. ;

Takamoto, M. ;

Hong, F. -L. ;

Katori, H. ;

Flambaum, V. V. .

PHYSICAL REVIEW LETTERS, 2008, 100 (14)

[7] Atomic transition energies and the variation of the fine-structure constant α [J].

Borschevsky, Anastasia ;

Eliav, Ephraim ;

Ishikawa, Yasuyuki ;

Kaldor, Uzi .

PHYSICAL REVIEW A, 2006, 74 (06)

[8] The cosmological evolution of the nucleon mass and the electroweak coupling constants [J].

Calmet, X ;

Fritzsch, H .

EUROPEAN PHYSICAL JOURNAL C, 2002, 24 (04) :639-642

[9]

CHIN C, 2008, REV MOD PHYS UNPUB

[10] Enhanced sensitivity to fundamental constants in ultracold atomic and molecular systems near Feshbach resonances [J].

Chin, Cheng ;

Flambaum, V. V. .

PHYSICAL REVIEW LETTERS, 2006, 96 (23)

← 1 2 3 4 5 6 7 8 9 →