|장소||Zoom and E6 #1323|
|일시||Jan 12th (Wed), 11:00 AM|
|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 (firstname.lastname@example.org)
|236||Mar. 25(Fri.) 11:00||E6-1 #1323||Prof. Ara Go (Department of Physics, Chonnam National University)||(응집물리 세미나) Hund's metallicity in ruthenate systems|
|235||2019. 8. 22 4PM & 8. 23 3PM||#1323, E6-2||Prof. Andrew N Cleland||Physics and Applications in Nanoelectronics and Nonomechanics|
|234||Dec.9(Wed), 10:00AM||Zoom||Prof. Andrew Geraci (Northwestern University)||Searching for the QCD axion with the ARIADNE experiment|
|233||Aug. 8th (Mon), 14:00||E6-2 #2502||Prof. Soonwon Choi(MIT)||Classical Shadow Tomography for Analog Quantum Simulators|
|232||8/19 (Mon), 10:00~11:30, 8/22 (Thur), 10:00~11:30||Rm. 1322, E6-2||Nicolas Treps||Tutorials on Multimode Quantum Optics in the Continuous Variable Regime|
|231||Oct. 17th (Mon) 11:00 AM||#1323,(E6-2, 1st fl.)||Nguyen Quang Liem, Institute of Materials Science, VAST, Viettnam||IMS and examples of the studies on optoelectronic materials|
|230||Nov.26(Thu), 04:00PM||Online(Zoom)||Myung-Ki Kim||2020 가을학기 광학분야 특별세미나(Light Engineering Beyond the Diffraction Limit)|
|229||Dec. 11 (Fri.), 02:30 PM||online||Myung Hwa Jung(Sogang Univ.)||Antisymmetric interlayer exchange coupling in magnetic multilayers|
|228||Apr. 13(Wed.) 10:30Am||E6 #1323/zoom||Mingu Kang (Max Planck POSTECH Korea Research Initiative)||Harnessing topology and correlations from singularities in 3d-kagome metals|
|227||January 23, 2019||Rm. C303, Creation Hall (3F), Munji Campus||Mikko Mottonen||Ultrasensitive Microwave Bolometer: Opportunity for Axion Detectors|
|226||Aug, 25(Tue), 20:00~||Zoom webinar||Mark D. Stiles (NIST, USA)||KAIST Global Forum for Spin and Beyond (Second Forum)|
|225||Aug. 17(Mon), 20:00~||Zoom webinar||Mark D. Stiles (NIST, USA)||Using magnetic tunnel junctions to compute like the brain|
|224||July 26, 2018 at 14:00||Room 5318, KAIST Natural Sciences Lecture Hall(E6).||Manki Kim (Department of Physics, Cornell University)||Inflation in String Theory and Backreaction|
|223||Jul 3rd, 2019 (Wed)||E6-2, 2501||Kyung Soo Choi||Many-body quantum electrodynamis (QED) with atoms and photons: A new platform for quantum optics"|
|222||Jun 1 (Wed) 4 PM||#1323(E6-2 1st fl.)||Kil-Byoung Chai, Caltech||Laboratory experiments relevant to mesospheric clouds, Saturn’s rings & astrophysical jets|
|221||2012/02/13-05/14||E6, 1501||Kenji Ohmori (Photo-Molecular Science, IMS)||Physics Colloquium : 2012 Spring|
|220||August. 6th (TUE), 14:00||E6 Room(#1323)||Kanghyun Chu||Visualization of in-plane piezoresponse vector fields|
|219||July 21 - August 2||E6-2,# 5318||Junmou Chen/Thomas Flacke/Kaoru Hagiwara/Junichi Kanzaki/Chris Kelso/Jeong Han Kim/Kyoungchul Kong/Gabriel Lee/Hye-Sung Lee/Ian Lewis||Challenges and Opportunities in Theoretical Particle Physics 2019|
|218||Jan. 25th (Tue), 15:00||E6 #1501/online||Junhyun Lee (Rutgers, the State University of New Jersey)||Emulating twisted double bilayer graphene with a multiorbital optical lattice|
|217||Sep10(Tue), 15:00||#2502, E6-2||Jun Ho Son||(2+1) D Duality Web from 3D Euclidean Lattice|