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Counts I, Hur J, Aude Craik DPL, Jeon H, Leung C, Berengut JC, Geddes A, Kawasaki A, Jhe W, Vuletić V. Evidence for Nonlinear Isotope Shift in Yb^{+} Search for New Boson. PHYSICAL REVIEW LETTERS 2020; 125:123002. [PMID: 33016768 DOI: 10.1103/physrevlett.125.123002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/27/2020] [Indexed: 06/11/2023]
Abstract
We measure isotope shifts for five Yb^{+} isotopes with zero nuclear spin on two narrow optical quadrupole transitions ^{2}S_{1/2}→^{2}D_{3/2}, ^{2}S_{1/2}→^{2}D_{5/2} with an accuracy of ∼300 Hz. The corresponding King plot shows a 3×10^{-7} deviation from linearity at the 3σ uncertainty level. Such a nonlinearity can indicate physics beyond the Standard Model (SM) in the form of a new bosonic force carrier, or arise from higher-order nuclear effects within the SM. We identify the quadratic field shift as a possible nuclear contributor to the nonlinearity at the observed scale, and show how the nonlinearity pattern can be used in future, more accurate measurements to separate a new-boson signal from nuclear effects.
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Affiliation(s)
- Ian Counts
- Department of Physics and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Joonseok Hur
- Department of Physics and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Diana P L Aude Craik
- Department of Physics and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Honggi Jeon
- Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
| | - Calvin Leung
- Department of Physics and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Julian C Berengut
- School of Physics, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Amy Geddes
- School of Physics, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Akio Kawasaki
- W. W. Hansen Experimental Physics Laboratory and Department of Physics, Stanford University, Stanford, California 94305, USA
| | - Wonho Jhe
- Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
| | - Vladan Vuletić
- Department of Physics and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Burd SC, du Toit PJW, Uys H. Coupled optical resonance laser locking. OPTICS EXPRESS 2014; 22:25043-25052. [PMID: 25401537 DOI: 10.1364/oe.22.025043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We have demonstrated simultaneous laser frequency stabilization of a UV and IR laser, to coupled transitions of ions in the same spectroscopic sample, by detecting only the absorption of the UV laser. Separate signals for locking the different lasers are obtained by modulating each laser at a different frequency and using lock-in detection of a single photodiode signal. Experimentally, we simultaneously lock a 369 nm and a 935 nm laser to the (2)S(1/2) → (2)(P(1/2) and (2)D(3/2) → (3)D([3/2]1/2) transitions, respectively, of Yb(+) ions generated in a hollow cathode discharge lamp. Stabilized lasers at these frequencies are required for cooling and trapping Yb(+) ions, used in quantum information and in high precision metrology experiments. This technique should be readily applicable to other ion and neutral atom systems requiring multiple stabilized lasers.
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Gustavsson MG, Mårtensson-Pendrill AM. Four Decades of Hyperfine Anomalies. ADVANCES IN QUANTUM CHEMISTRY 1998. [DOI: 10.1016/s0065-3276(08)60516-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Lindroth E, Mårtensson-Pendrill A. (2p2)1S state of beryllium. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1996; 53:3151-3156. [PMID: 9913256 DOI: 10.1103/physreva.53.3151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Kurth F, Gudjons T, Hilbert B, Reisinger T, Werth G, M�rtensson-Pendrill AM. Doppler free ?dark resonances? for hyperfine measurements and isotope shifts in Ca+ isotopes in a Paul trap. ACTA ACUST UNITED AC 1995. [DOI: 10.1007/bf01437567] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mårtensson-Pendrill A, Lindgren I, Lindroth E, Salomonson S, Staudte DS. Convergence of relativistic perturbation theory for the 1s2p states in low-Z heliumlike systems. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 51:3630-3635. [PMID: 9912029 DOI: 10.1103/physreva.51.3630] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Mårtensson-Pendrill AM. Magnetic moment distributions in Tl nuclei. PHYSICAL REVIEW LETTERS 1995; 74:2184-2187. [PMID: 10057864 DOI: 10.1103/physrevlett.74.2184] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Lindgren I, Persson H, Salomonson S, Labzowsky L. Full QED calculations of two-photon exchange for heliumlike systems: Analysis in the Coulomb and Feynman gauges. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 51:1167-1195. [PMID: 9911698 DOI: 10.1103/physreva.51.1167] [Citation(s) in RCA: 116] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Berzinsh U, Gustafsson M, Hanstorp D, Klinkmüller A, Ljungblad U, Mårtensson-Pendrill A. Isotope shift in the electron affinity of chlorine. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 51:231-238. [PMID: 9911578 DOI: 10.1103/physreva.51.231] [Citation(s) in RCA: 114] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Lindroth E. Calculation of doubly excited states of helium with a finite discrete spectrum. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1994; 49:4473-4480. [PMID: 9910763 DOI: 10.1103/physreva.49.4473] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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