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 [1], a two-dimensional graph that maps the measured ISs [2]. 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 [3]. 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.
[1] 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).
[2] W. H. King, Isotope Shifts in Atomic Spectra (Plenum Press, New York, 1984).
[3] I. Counts*, J. Hur* et al., Physical Review Letters 125, 123002 (2020) for the early stage of the work.
Contact: Myeongsoo Kang (mskang@kaist.ac.kr)
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
367 | 5. 2(월),16:00 | E6, #1501 | 유상운교수 (한밭대) | What can we learn from the history of science and technology?(우리말강의) |
366 | 4. 25(월), 16:00 | E6, #1501 | 정영욱 책임연구원 (한국원자력연구원) | Ultrafast electron beam, a tool to explore the nanoscopic world of materials(우리말강의) |
365 | 4. 11(월),16:00 | E6, #1501 | 노재동교수 (서울시립대 물리학과) | Emergence of Statistical Mechanics in Quantum Systems |
364 | 4. 4(월), 16:00 | E6, #1501 | 김희철교수 (Postech 물리학과) | New paradigms in Quantum Field Theory |
363 | 3. 28(월), 16:00 | E6, #1501 | 이준희교수 (UNIST 에너지 및 화학공학부) | Ultimate-density atomic semiconductor via flat bands |
362 | 3. 21(월),16:00 | E6, #1501 | 이상성교수 (한국천문연구원) | Multi-wavelength Studies on Relativistic Jets from Gamma-ray Bright Active Galactic Nuclei |
361 | 3. 14(월),16:00 | E6, #1501 | 박용근교수 (KAIST 물리학과) | Quantitative phase imaging and artificial intelligence: label-free 3D imaging, classification, and inference |
360 | 3. 7(월),16:00` | E6, #1501 | 손석우교수 (서울대 지구환경과학부) | Climate Physics and Modelling(우리말강의) |
359 | 2. 28(월),16:00 | E6, #1501 | 김동규교수 (KAIST 물리학과) | Spin-based training of optical microscopes |
358 | May. 19(Thu), 4pm | E6-2. #1323 & Zoom | Dr.Jay Hyun Jo (Yale University, Department of Physics) | Chasing Long Standing Neutrino Anomalies with MicroBooNE |
357 | May. 18(Wed), 4pm | E6-2. #1323 & Zoom | Dr.Heeyeon Kim (Rutgers University, Department of Physics and Astronomy) | Geometry, Algebra, and Quantum Field Theory |
356 | May. 12(Thu), 4pm | E6-2. #1323 & Zoom | Dr.Philip Chang (University of California San Diego, Department of Physics) | New frontiers of electroweak physics at the LHC |
355 | May. 11(Wed), 4pm | E6-2. #1323 & Zoom | Dr. Sunok Josephine Suh (Kavli Institute for Theoretical Physics) | Gravity as a phenomenon in quantum dynamics |
354 | 3pm, 19th May | online | Jonghee Yoon, PhD (Assistant professor, Department of Physics, Ajou University) | (광학분야 특별세미나)Development of a multimodal optical system for improved disease diagnosis |
353 | 4pm, 10th May | E6 1323 | 권혁준 (Korea Institute for Advanced Study, KIAS) | (광학분야 특별세미나)Testing quantum thermodynamics using quantum optics |
352 | 4pm, 28th April | E6 1323 | 유경식 (KAIST 전기및전자공학부) | (광학분야 특별세미나)Adiabaticity and symmetry in optical waveguide design |
351 | 4pm, 14th April | E6 1323 | 신승우 (KAIST 물리학과) | (광학분야 특별세미나)Holographic tomography of dielectric tensors at optical frequency |
350 | 4pm, 31th March | online | 최현용 (서울대학교 물리천문학부) | (광학분야 특별세미나)Ultrafast time-resolved spectroscopy in topological materials |
349 | May. 13 (Fri.), 04:00 PM | 자연과학동(E6-2) 1st fl. #1323 | Dr. Yosep Kim(Center for Quantum Information, KIST) |
High-fidelity iToffoli gate for fixed-frequency superconducting qubits
![]() |
348 | May. 13 (Fri.), 02:30 PM | Zoom webinar | Dr. Kun-Rok Jeon(Department of Physics, Chung-Ang University) |
Topological Superconducting Spintronics Towards Zero-Power Computing Technologies
![]() |