|일시||Jan 12th (Wed), 11:00 AM|
|장소||Zoom and E6 #1323|
|연사||Joonseok Hur (MIT)|
Title: Spectroscopic study of trapped ions towards probing dark matter and new physics
Speaker: Joonseok Hur (MIT)
January 12th (Wednesday), 11:00, E6 #1323 &
Zoom link: https://kaist.zoom.us/j/86232436126
Historically, precise atomic spectroscopy has led to new physics in many instances. Precision low-energy experiments may thus supplement high-energy and astrophysical approaches. It has been proposed to measure the isotope shifts (ISs) in ions to probe new physics using King plots , a two-dimensional graph that maps the measured ISs . The Standard Model (SM) predicts in the leading order that the points in King plots should lie on a straight line. Departure from such linearity is unambiguously observed in our recent experiments with narrow optical transitions in trapped ions . However, the contribution of higher-order corrections to the non-linearity within the SM complicates the test. The sources of the observed violation should be examined carefully to decouple the SM corrections arising from nuclear physics from possible new-physics contributions.
Here I will present our latest experimental and theoretical efforts to observe the non-linearity, identify its physical origin, and obtain the bound on dark boson-mediated interaction as a particular type of new physics that is of increasing interest. Future works will be discussed subsequently.
 J. C. Berengut et al., Physical Review Letters 120, 091801 (2018); V. V. Flambaum, A. J. Geddes, and A. V. Viatkina, Physical Review A 97, 032510 (2018); C. Delaunay et al., Physical Review D 96, 093001 (2017).
 W. H. King, Isotope Shifts in Atomic Spectra (Plenum Press, New York, 1984).
 I. Counts*, J. Hur* et al., Physical Review Letters 125, 123002 (2020) for the early stage of the work.
Contact: Myeongsoo Kang (email@example.com)
|공지||2023-02-27 12:00||E6-1 #1501||2023 봄학기 콜로키움 전체 일정|
|공지||2023-03-16 16:00||E6-2 #1323||2023 봄학기 광학분야 및 응집물리 특별세미나 전체 일정|
|49||2015-06-03 12:00||Room 101, E11||The First Wednesday Multidisciplinary Forum|
|48||2023-02-20 16:00||Room 1323, KAIST Natural Sciences Lecture Hall(E6)||Physics of ferromagnet/superconductor junctions|
|47||2018-07-12 17:00||Room 5318, KAIST Natural Sciences Lecture Hall(E6)||The MilliQan Experiment: Search for Milli-Charged Particles at the LHC|
|46||2018-07-13 14:00||Room 5318, KAIST Natural Sciences Lecture Hall(E6).||Loop Induced Single Top Partner Production and Decay at the LHC|
|45||2018-07-27 15:00||Room 5318, KAIST Natural Sciences Lecture Hall(E6).||Muon g-2 in the 2HDM and MSSM: comprehensive numerical analysis and absolute maxima|
|44||2018-07-27 15:00||Room 5318, KAIST Natural Sciences Lecture Hall(E6).||Muon g-2 in the 2HDM and MSSM: comprehensive numerical analysis and absolute maxima|
|43||2018-07-26 14:00||Room 5318, KAIST Natural Sciences Lecture Hall(E6).||Inflation in String Theory and Backreaction|
|42||2018-07-26 14:00||Room 5318, KAIST Natural Sciences Lecture Hall(E6).||Inflation in String Theory and Backreaction|
|41||2019-09-18 16:00||Seminar Room #1323||Fall 2019: Physics Seminar Serises|
|40||2016-11-01 14:30||Seminar Room #1323(E6-2)||Search for dark sector particles in the B-factory experiments|
|39||2016-06-14 16:00||Seminar Room (#2502, 2nd fl.)||Photonic quantum network based on multimode squeezed vacuums and single-photon subtraction|
|38||2017-12-14 15:00||Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus||Exploring the Universe via GWs in the era of multi-messenger astronomy|
|37||2018-07-02 15:00||Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus||High Precision Magnetic Field Measurement for the Muon g-2 Experiment|
|36||2017-03-21 16:00||Seminar Room 1323||Spring 2017: Physics Seminar Serises|
|35||2017-03-06 16:00||Seminar Room 1501||Spring 2017: Physics Colloquium|
|34||2019-09-02 16:00||Seminar Room 1501||Fall 2019: Physics Colloquium|
|33||2017-04-27 16:00||Seminar Room(#1323, E6-2)||반도체 양자점을 이용한 단광자 광원|
|32||2020-09-11 14:00||zoom||SRC Seminar|
|31||2020-12-02 10:00||Zoom||Recent progress in Axion Dark Matter eXperiment (ADMX) technology|
|30||2020-12-09 10:00||Zoom||Searching for the QCD axion with the ARIADNE experiment|