Details
| Original language | English |
|---|---|
| Article number | L012013 |
| Journal | Physical Review Research |
| Volume | 5 |
| Issue number | 1 |
| Publication status | Published - 7 Feb 2023 |
| Externally published | Yes |
Abstract
To operate an optical lattice clock at a fractional uncertainty below 10-17, one must typically consider not only electric-dipole (E1) interaction between an atom and the lattice light field when characterizing the resulting lattice light shift of the clock transition but also higher-order multipole contributions, such as electric-quadrupole (E2) and magnetic-dipole (M1) interactions. However, strongly incompatible values have been reported for the E2-M1 polarizability difference of the clock states (5s5p)3P0 and (5s2)1S0 of strontium [Ushijima, Phys. Rev. Lett. 121, 263202 (2018)0031-900710.1103/PhysRevLett.121.263202; Porsev, Phys. Rev. Lett. 120, 063204 (2018)0031-900710.1103/PhysRevLett.120.063204; Wu, Phys. Rev. A 100, 042514 (2019)2469-992610.1103/PhysRevA.100.042514]. This largely precludes operating strontium clocks with uncertainties of a few 10-18, as the resulting lattice light shift corrections deviate by up to 1×10-17 from each other at typical trap depths. We have measured the E2-M1 light shift coefficient using our Sr87 lattice clock and find a value of Δαqm=-987-223+174μHz. This result is in very good agreement with the value reported by Ushijima et al. [Phys. Rev. Lett. 121, 263202 (2018)0031-900710.1103/PhysRevLett.121.263202].
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical Review Research, Vol. 5, No. 1, L012013, 07.02.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experimental determination of the E2−M1 polarizability of the strontium clock transition
AU - Dörscher, S.
AU - Klose, J.
AU - Maratha palli, S.
AU - Lisdat, Christian
N1 - Publisher Copyright: © 2023 authors. Published by the American Physical Society.
PY - 2023/2/7
Y1 - 2023/2/7
N2 - To operate an optical lattice clock at a fractional uncertainty below 10-17, one must typically consider not only electric-dipole (E1) interaction between an atom and the lattice light field when characterizing the resulting lattice light shift of the clock transition but also higher-order multipole contributions, such as electric-quadrupole (E2) and magnetic-dipole (M1) interactions. However, strongly incompatible values have been reported for the E2-M1 polarizability difference of the clock states (5s5p)3P0 and (5s2)1S0 of strontium [Ushijima, Phys. Rev. Lett. 121, 263202 (2018)0031-900710.1103/PhysRevLett.121.263202; Porsev, Phys. Rev. Lett. 120, 063204 (2018)0031-900710.1103/PhysRevLett.120.063204; Wu, Phys. Rev. A 100, 042514 (2019)2469-992610.1103/PhysRevA.100.042514]. This largely precludes operating strontium clocks with uncertainties of a few 10-18, as the resulting lattice light shift corrections deviate by up to 1×10-17 from each other at typical trap depths. We have measured the E2-M1 light shift coefficient using our Sr87 lattice clock and find a value of Δαqm=-987-223+174μHz. This result is in very good agreement with the value reported by Ushijima et al. [Phys. Rev. Lett. 121, 263202 (2018)0031-900710.1103/PhysRevLett.121.263202].
AB - To operate an optical lattice clock at a fractional uncertainty below 10-17, one must typically consider not only electric-dipole (E1) interaction between an atom and the lattice light field when characterizing the resulting lattice light shift of the clock transition but also higher-order multipole contributions, such as electric-quadrupole (E2) and magnetic-dipole (M1) interactions. However, strongly incompatible values have been reported for the E2-M1 polarizability difference of the clock states (5s5p)3P0 and (5s2)1S0 of strontium [Ushijima, Phys. Rev. Lett. 121, 263202 (2018)0031-900710.1103/PhysRevLett.121.263202; Porsev, Phys. Rev. Lett. 120, 063204 (2018)0031-900710.1103/PhysRevLett.120.063204; Wu, Phys. Rev. A 100, 042514 (2019)2469-992610.1103/PhysRevA.100.042514]. This largely precludes operating strontium clocks with uncertainties of a few 10-18, as the resulting lattice light shift corrections deviate by up to 1×10-17 from each other at typical trap depths. We have measured the E2-M1 light shift coefficient using our Sr87 lattice clock and find a value of Δαqm=-987-223+174μHz. This result is in very good agreement with the value reported by Ushijima et al. [Phys. Rev. Lett. 121, 263202 (2018)0031-900710.1103/PhysRevLett.121.263202].
UR - http://www.scopus.com/inward/record.url?scp=85148325985&partnerID=8YFLogxK
U2 - 10.1103/PhysRevResearch.5.L012013
DO - 10.1103/PhysRevResearch.5.L012013
M3 - Article
VL - 5
JO - Physical Review Research
JF - Physical Review Research
SN - 2643-1564
IS - 1
M1 - L012013
ER -