visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-09-22 15:30 
일시 Sep. 22, 2016(Thu), 3:30 PM 
장소 #1323(E6-2, 1st fl.) 
연사 Dr. Haiyang Yan (Institute of Nuclear Physics and Chemistry) 


Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model

 

Dr. Haiyang Yan (Institute of Nuclear Physics and Chemistry)
Sep. 22, 2016(Thu), 3:30 PM,  #1323(E6-2, 1st fl.)


Polarized spins are good probes to detect spin dependent new interactions beyond the standard model. In recent years, various models of new physics beyond the standard model have been studies in which new massive particles such as axion, familon,and majoron, etc. were theoretically introduced. Many of these exotic new interactions are spin dependent. Spin polarized neutron beam, atom beam or noble gases are good probes to detect these new interactions. We used spin rotation of polarized neutrons in liquid Helium to search for spin-velocity dependent new interactions. The new upper bound we obtained is more than 7 orders of magnitude more stringent than the existing laboratory constraints for interaction ranges below 1 m. We Searched for New Spin and Velocity-Dependent Interactions by spin relaxation of polarized 3He Gas. Using the best available measured T2 of polarized 3He gas atoms as the polarized source and the Earth as an unpolarized source, we obtain constraints on two new interactions. We present a new experimental upper bound on possible vector-axial-vector (VVA) type interactions for ranges between 1 and 108m.

번호 날짜 장소 제목
527 2010-02-14 16:00  E6, 1501  Physics Colloquium - 2011 Spring file
526 2023-04-14 12:00  E6-2 #1323  (응집물리 세미나)Exotic quantum phenomena in two-dimensional materials file
525 2023-05-12 11:00  E6-2 #1323  (응집물리 세미나)Interlayer conductivity and plasmon in weakly coupled layered systems
524 2022-05-26 16:00  E6 1323  (광학분야 특별세미나)Topological photonic devices
523 2023-06-01 16:00  E6-2 #1323  (광학분야 세미나)Quantum sensing using a squeezed light from hot Rb vapor
522 2015-03-09 16:00  E6, 1501  Physics Colloquium : 2015 Spring file
521 2022-03-31 16:00  online  (광학분야 특별세미나)Ultrafast time-resolved spectroscopy in topological materials
520 2023-03-30 16:00  E6-2 #1323  (광학분야 세미나)Scalable quantum entanglement in trapped-ions based quantum computer
519 2022-08-17 11:00  E6-6 #118호  Robust Hamiltonian Engineering of Large Quantum Systems (큰 양자시스템의 견고한 해밀토니안 엔지니어링)
518 2010-02-08 16:00  E6, 1501  Physics Ciolloquium : 2010 Spring file
517 2009-10-21 16:00  E6, 1501  Interdimensional Universality of Dynamic Interfaces
516 2010-09-06 16:00  E6, 1501  Physics Colloquium : 2010 Fall file
515 2017-03-21 16:00  Seminar Room 1323  Spring 2017: Physics Seminar Serises file
514 2022-05-16 16:00  E6, #1501  Design synthetic topological matter with atoms and lights
513 2020-10-15 16:00  (https://kaist.zoom.us/j/93997220310)  Towards resource-efficient and fault-tolerant quantum computation with nonclassical light
512 2022-04-25 16:00  E6, #1501  Ultrafast electron beam, a tool to explore the nanoscopic world of materials(우리말강의)
511 2017-12-13 13:30  자연과학동 대형강의실 (1501호)  KAIST-KIAS Joint Workshop in Theoretical Sciences 개최 file
510 2019-05-21 16:00  #5318, E6-2  Classification of flat bands according to the band-crossing singularity of Bloch wave functions file
509 2019-09-02 16:00  Seminar Room 1501  Fall 2019: Physics Colloquium file
508 2023-05-26 11:00  E6-2 #1323  (응집물리 세미나)Spectral Analyses of Stochastic Charge Trapping in Oxide Heterostructures file