Experimental determination of the helium 2 3P1-1 1S0 transition rate

被引：21

作者：

Dall, R. G. ^{[1
,2
]}

Baldwin, K. G. H. ^{[1
,2
]}

Byron, L. J. ^{[1
,2
]}

Truscott, A. G. ^{[1
,2
]}

机构：

[1] Australian Natl Univ, ARC Ctr Excellence Quantum Atom Opt, Canberra, ACT 0200, Australia

[2] Australian Natl Univ, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.100.023001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first experimental determination of the 2 (3)P(1)-1 (1)S(0) transition rate in helium and compare this measurement with theoretical quantum-electrodynamic predictions. The experiment exploits the very long (similar to 1 minute) confinement times obtained for atoms magneto-optically trapped in an apparatus used to create a Bose-Einstein condensate of metastable (2 (3)S(1)) helium. The 2 (3)P(1)-1 (1)S(0) transition rate is measured directly from the decay rate of the cold atomic cloud following 1083 nm laser excitation from the 2 (3)S(1) to the 2 (3)P(1) state, and from accurate knowledge of the 2 (3)P(1) population. The value obtained is 177 +/- 8 s(-1), which agrees very well with theoretical predictions, and has an accuracy that compares favorably with measurements for the same transition in heliumlike ions higher in the isoelectronic sequence.

引用

页数：4

共 50 条

[21] Observation of the 1S0→3P0 clock transition in 27Al+
Rosenband, T.
Schmidt, P. O.
Hume, D. B.
Itano, W. M.
Fortier, T. M.
Stalnaker, J. E.
Kim, K.
Diddams, S. A.
Koelemeij, J. C. J.
Bergquist, J. C.
Wineland, D. J.
PHYSICAL REVIEW LETTERS, 2007, 98 (22)
[22] EXPERIMENTAL DETERMINATION OF SINGLE-PHOTON TRANSITION RATE BETWEEN 2S-3(1) AND 1S-1(0) STATES OF HEI
WOODWORTH, JR
MOOS, HW
PHYSICAL REVIEW A, 1975, 12 (06): : 2455 - 2463
[23] UNIFIED RELATIVISTIC THEORY FOR 1S2P3P1-1S21S0 AND 1S2P1P1-1S21S0 FREQUENCIES AND TRANSITION RATES IN HELIUM-LIKE IONS
DRAKE, GWF
PHYSICAL REVIEW A, 1979, 19 (04): : 1387 - 1397
[24] Storage-ring measurement of the hyperfine induced 2s2p 3P0 → 2s2 1S0 transition rate in berylliumlike sulfur
Schippers, S.
Bernhardt, D.
Grieser, M.
Hahn, M.
Krantz, C.
Lestinsky, M.
Mueller, A.
Novotny, O.
Repnow, R.
Savin, D. W.
Wolf, A.
XXVIII INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC COLLISIONS (ICPEAC), 2014, 488
[25] QUANTUM ELECTRODYNAMIC CORRECTIONS TO 2S-3(1)-]1S-1(0) + ONE PHOTON TRANSITION RATE IN HELIUM AND HELIUM-LIKE IONS
KELSEY, EJ
ANNALS OF PHYSICS, 1976, 98 (02) : 462 - 489
[26] Absolute frequency measurement of the 1S0 - 3P0 transition of 171Yb
Pizzocaro, Marco
Thoumany, Pierre
Rauf, Benjamin
Bregolin, Filippo
Milani, Gianmaria
Clivati, Cecilia
Costanzo, Giovanni A.
Levi, Filippo
Calonico, Davide
METROLOGIA, 2017, 54 (01) : 102 - 112
[27] RADIATIVE CORRECTION TO THE 1S2P 3P1-1S2P1P1 TRANSITION ENERGY IN NEUTRAL HELIUM
HATA, J
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1984, 17 (08) : L241 - L244
[28] The probabilities of the ν′ 1(3P2)-ν" 0+ (1S0) transitions and the radiative lifetimes of the ν′ 1(3P2) states of the CdAr and CdKr molecules
Alekseeva, O. S.
Devdariani, A. Z.
Lednev, M. G.
Zagrebin, A. L.
XXI INTERNATIONAL CONFERENCE ON SPECTRAL LINE SHAPES (ICSLS 2012), 2012, 397
[29] Theoretical study of the HgAr2(3P1 1S0) vibronic spectrum
Zuniga, Jose
Bastida, Adolfo
Requena, Alberto
Halberstadt, Nadine
Beswick, J. Alberto
Journal of Chemical Physics, 1993, 98 (02):
[30] Storage-ring measurement of the hyperfine-induced 2s2p 3P0 → 2s2 1S0 transition rate in berylliumlike sulfur
Schippers, S.
Bernhardt, D.
Mueller, A.
Lestinsky, M.
Hahn, M.
Novotny, O.
Savin, D. W.
Grieser, M.
Krantz, C.
Repnow, R.
Wolf, A.
PHYSICAL REVIEW A, 2012, 85 (01):

← 1 2 3 4 5 →