Experimental investigation of excited-state lifetimes in atomic ytterbium

Bowers, C. J.; Budker, Dmitry; Commins, Eugene D.; DeMille, David; Freedman, S. J.; Nguyen, Angela-Maithy; Shang, Song; Zolotorev, M.

doi:10.1103/physreva.53.3103

Cited by 50 publications

(42 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The uncertainity of the results is mainly due to the incomplete knowledge of the intensity of the laser beam in the trap itself and to estimate this lack of knowledge we adopted a cover factor equal to the 30% of the total value of the laser intensity. In Tab.2 are also reported the value of a 2,0 , evaluated by [18] from the intensity dependence of the lifetimes, and the theoretical prediction for this branching ratio [19,20,21,22,23,24]. The value obtained from our measurement agrees with the theory and also with the experimental value [18], even if in our model an important assumption about the collisional rate was made, in order to justify the differences in the loading times.…”

Section: Measurements Of the 1 P 1 Branching Ratiossupporting

confidence: 83%

Yb optical lattice clock at INRIM

Calonico

Levi

Lorini

et al. 2010

EFTF-2010 24th European Frequency and Time Forum

View full text Add to dashboard Cite

Section: Measurements Of the 1 P 1 Branching Ratiossupporting

confidence: 83%

Yb optical lattice clock at INRIM

Calonico

Levi

Lorini

et al. 2010

EFTF-2010 24th European Frequency and Time Forum

View full text Add to dashboard Cite

“…Under present experimental conditions, coefficient C 0 is found to be 1.028 (3), and the measured PV parameter is corrected accordingly. Principles of its derivation are given in Appendix C. In Fig.…”

Section: Results and Analysismentioning

confidence: 84%

Parity violation in atomic ytterbium: Experimental sensitivity and systematics

et al. 2010

Self Cite

View full text Add to dashboard Cite

We present a detailed description of the observation of parity violation in the 1 S 0 -3 D 1 408-nm forbidden transition of ytterbium, a brief report of which appeared earlier. Linearly polarized 408-nm light interacts with Yb atoms in crossed E and B fields. The probability of the 408-nm transition contains a parity-violating term, proportional to (E · B)[(E × E) · B], arising from interference between the parity-violating amplitude and the Stark amplitude due to the E field (E is the electric field of the light). The transition probability is detected by measuring the population of the 3 P 0 state, to which 65% of the atoms excited to the 3 D 1 state spontaneously decay. The population of the 3 P 0 state is determined by resonantly exciting the atoms with 649-nm light to the 6s7s 3 S 1 state and collecting the fluorescence resulting from its decay. Systematic corrections due to E-field and B-field imperfections are determined in auxiliary experiments. The statistical uncertainty is dominated by parasitic frequency excursions of the 408-nm excitation light due to the imperfect stabilization of the optical reference with respect to the atomic resonance. The present uncertainties are 9% statistical and 8% systematic. Methods of improving the accuracy for future experiments are discussed.

show abstract

“…Cs,32.60.+i,32.80.Ys The proposal to measure parity nonconservation (PNC) in the 6s 2 1 S 0 → 5d6s 3 D 1 transition in atomic ytterbium (Yb) [1] has prompted both theoretical [2,3] and experimental [4,5] studies. The magnetic-dipole (M 1) amplitude for this transition is a key quantity for evaluating the feasibility of a PNC-Stark interference experiment as proposed in [1].…”

mentioning

confidence: 99%

Measurement of the forbidden6s21S0→5
Stalnaker
¹
,
Budker
²
,
DeMille
³

et al. 2002
Phys. Rev. A
Self Cite
25
2
33
0
View full text Add to dashboard Cite

We report on a measurement of a highly forbidden magnetic-dipole transition amplitude in ytterbium using the Stark-interference technique. This amplitude is important in interpreting a future parity nonconservation experiment that exploits the same transition. We find | 5d6s 3 D1|M 1|6s 2 1 S0 | = 1.33(6)Stat(20) β × 10 −4 µ0, where the larger uncertainty comes from the previously measured vector transition polarizability β. The M 1 amplitude is small and should not limit the precision of the parity nonconservation experiment.PACS numbers: 32.70. Cs,32.60.+i,32.80.Ys The proposal to measure parity nonconservation (PNC) in the 6s 2 1 S 0 → 5d6s 3 D 1 transition in atomic ytterbium (Yb) [1] has prompted both theoretical [2,3] and experimental [4,5] studies. The magnetic-dipole (M 1) amplitude for this transition is a key quantity for evaluating the feasibility of a PNC-Stark interference experiment as proposed in [1]. A nonzero M 1 amplitude coupled with imperfections in the apparatus can lead to systematic uncertainties in a PNC experiment. Here we present the first experimental determination of the magnetic-dipole amplitude for the 1 S 0 → 3 D 1 transition. Our method is based on the technique of Stark interference [6,7,8].In the absence of external fields, the 1 S 0 → 3 D 1 transition ( Fig. 1) whereε is the direction of the polarization of the laser light, (E ×ε) q is the q component of the vector in the spherical basis, and the vector transition polarizability β is a real parameter. The magnitude of β was measured [5]:In an electric field, the transition amplitude is the sum of the Stark-induced E1 amplitude and the forbidden M 1 amplitude. The corresponding transition rate iswhere we neglect the contribution from |A(M 1)| 2 since |A(M 1)| ≪ |A(E1 St )| with the electric fields and polarization angles used here. The Stark-induced amplitude is proportional to E. Thus, reversing E changes the total transition rate, allowing the interference term to be isolated from the larger terms. The M 1 amplitude is given bywherek is the direction of propagation of the excitation light. Equation 1 implies that only the M J = ±1 components of the upper state are excited by A(E1 St ),

show abstract

Experimental investigation of excited-state lifetimes in atomic ytterbium

Cited by 50 publications

References 23 publications

Yb optical lattice clock at INRIM

Yb optical lattice clock at INRIM

Parity violation in atomic ytterbium: Experimental sensitivity and systematics

Measurement of the forbidden6s21S0→5
Stalnaker
¹
,
Budker
²
,
DeMille
³

et al. 2002
Phys. Rev. A
Self Cite
25
2
33
0
View full text Add to dashboard Cite

Contact Info

Product

Resources

About

Experimental investigation of excited-state lifetimes in atomic ytterbium

Cited by 50 publications

References 23 publications

Yb optical lattice clock at INRIM

Yb optical lattice clock at INRIM

Parity violation in atomic ytterbium: Experimental sensitivity and systematics

Measurement of the forbidden6s21S0→5Stalnaker1, Budker2, DeMille3 et al. 2002Phys. Rev. ASelf Cite252330View full textAdd to dashboardCite

Contact Info

Product

Resources

About

Measurement of the forbidden6s21S0→5
Stalnaker
¹
,
Budker
²
,
DeMille
³

et al. 2002
Phys. Rev. A
Self Cite
25
2
33
0
View full text Add to dashboard Cite