Testing the time dependence of fundamental constants in the spectra of multicharged ions

被引：18
作者：
Andreev, OY
Labzowsky, LN
Plunien, G
Soff, G
机构：
[1] Tech Univ Dresden, Inst Theoret Phys, D-01062 Dresden, Germany
[2] St Petersburg State Univ, VA Fock Inst Phys, St Petersburg 198504, Russia
[3] Petersburg Nucl Phys Inst, St Petersburg 188300, Russia
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 24期
关键词：
D O I：
10.1103/PhysRevLett.94.243002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A new method for measuring a possible time dependence of the fine-structure constant (alpha) is proposed. The method is based on the level crossing in two-electron highly charged ions facilitating resonance laser measurements of the distance between the levels at the point of crossing. This provides an enhancement factor of about 10(3) in heliumlike dysprosium and thus reduces the requirements for the relative accuracy of resonance laser measurements at about 10(-12).
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页数：4
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共 22 条
  • [1] Evaluation of the low-lying energy levels of two- and three-electron configurations for multicharged ions
    Andreev, OY
    Labzowsky, LN
    Plunien, G
    Soff , G
    [J]. PHYSICAL REVIEW A, 2003, 67 (01) : 11
  • [2] [Anonymous], 1937, Nature, DOI DOI 10.1038/139323A0
  • [3] DEMITRODER W, 1998, LASER SPECTROSCOPY
  • [4] Two-photon decay of 2 S-1(0) and 2 S-3(1) states of heliumlike ions
    Derevianko, A
    Johnson, WR
    [J]. PHYSICAL REVIEW A, 1997, 56 (02): : 1288 - 1294
  • [5] ENERGY-LEVEL CALCULATIONS AND E1M1 2 PHOTON TRANSITION RATES IN 2 ELECTRON U-90+
    DRAKE, GWF
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1985, 9 (04) : 465 - 470
  • [6] Continuous coherent Lyman-α excitation of atomic hydrogen
    Eikema, KSE
    Walz, J
    Hänsch, TW
    [J]. PHYSICAL REVIEW LETTERS, 2001, 86 (25) : 5679 - 5682
  • [7] Properties and planned use of the intense THz radiation from ELBE at Dresden-Rossendorf
    Fahmy, K
    Furlinski, G
    Gippner, P
    Grosse, E
    Piest, H
    Seidel, W
    Sczepan, M
    Wohlfarth, D
    Wolf, A
    Wuensch, R
    [J]. JOURNAL OF BIOLOGICAL PHYSICS, 2003, 29 (2-3) : 303 - 307
  • [8] New limits on the drift of fundamental constants from laboratory measurements -: art. no. 230802
    Fischer, M
    Kolachevsky, N
    Zimmermann, M
    Holzwarth, R
    Udem, T
    Hänsch, TW
    Abgrall, M
    Grünert, J
    Maksimovic, I
    Bize, S
    Marion, H
    Dos Santos, FP
    Lemonde, P
    Santarelli, G
    Laurent, P
    Clairon, A
    Salomon, C
    Haas, M
    Jentschura, UD
    Keitel, CH
    [J]. PHYSICAL REVIEW LETTERS, 2004, 92 (23) : 230802 - 1
  • [9] Possible link between the changing fine-structure constant and the accelerating universe via scalar-tensor theory
    Fujii, Y
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2002, 11 (07): : 1137 - 1147
  • [10] *GSI, CONC DES REP INT ACC
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