visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-09-18 16:00 
일시 Sep 18(Mon), 16:00 
장소 CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus 
연사 Dr. Stefan EVANS (Helmholtz-Zentrum Dresden-Rossendorf) 

물리학과 야니스 교수 연구실/액시온 및 극한상호작용 연구단 (CAPP/IBS) 입니다.

아래 세미나에 관심 있으신 연구자들의 참석을 요청드립니다.

CAPP seminars will be held. Anyone interested in this topic is warmly welcome.

 

Speaker: Dr. Stefan EVANS (Helmholtz-Zentrum Dresden-Rossendorf)

 

Date: September 18, 2023 (Monday) 

 

Time: 4:00 PM (KST)

 

Venue: CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus

 

https://kaist.zoom.us/j/6108068959?pwd=TXV2OGlWdVRtcGhmNXVTRWlla2pHQT09

 

Meeting ID: 610 806 8959
Passcode: 131015
 
Topic: Searching for axions in quantum vacuum birefringence
 
Abstract:
 
After the discovery of the Higgs particle, axions or axion-like particles (ALPs) are among the most favorite candidates for new physics beyond the standard model. The axion arises by promoting the constant governing CP-violation in the QCD Lagrangian to a dynamical field, as a solution to the long-standing CP problem [1]. Possible existence of the axion would have observable implications for both astrophysical phenomena and strong EM field laboratory environments.
 
We explore the role of possible axions and ALPs in emerging ultra-intense laboratory probes of quantum vacuum structure. Axions interact with applied EM fields via their coupling  to the pseudoscalar EM field invariant E·B. As a consequence virtual axion excitations may drive vacuum birefringence and dichroism, producing effects comparable to the long sought-after Euler-Heisenberg-Schwinger QED vacuum response [2].
 
[1] R. D. Peccei and H. R. Quinn, Phys. Rev. Lett. 38, 1440-1443 (1977).
[2] J. Schwinger, Phys. Rev. 82, 664 (1951).

 

번호 날짜 장소 제목
342 2017-03-24 16:00  #1323 (1st fl. E6-2)  Graphene based nano electronics and nano electromechanics; focusing on precise control of nano structures for studying accurate physical properties
341 2016-09-29 16:00  E6-2 #1323 (1st floor)  Large-scale Silicon Photonic MEMS Switches
340 2015-07-15 14:00  E6-2,1323  Electronic and optical properties of titanate-based oxide superlattices
339 2019-06-17 10:30  #1323, E6-2  Chiral Spintronics file
338 2019-04-19 16:00  E6-2. 1st fl. #1323  Graphene and hBN heterostructures file
337 2023-09-21 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  [CAPP seminar] Axion Magnetic Resonance file
336 2023-10-11 16:00  E6-2, Rm2502  [High Energy Theory Seminar] Axion Magnetic Resonance
335 2016-01-26 14:00  E6-2, #1323  Electrochemistry on Nano- and Atomic Levels: Scanning Probe Microscopy Meets Deep Data
334 2019-03-29 14:30  E6-2. 1st fl. #1323  Epitaxial Multifunctional Oxide Thin Films for Novel Electronics file
333 2018-06-01 11:00  E6-2. 1st fl. #1323  Topological phases in low-dimensional quantum materials file
332 2019-10-29 16:00  #1323 (E6-2, 1st fl.)  Particles and Gravity via String Geometry file
331 2018-04-09 11:00  E6-2. 1st fl. #1323  Doublon-holon origin of the subpeaks at the Hubbard band edges file
330 2019-10-31 10:00  #1323 (E6-2, 1st fl.)  Kondo meets Hubbard: Impurity physics for correlated lattices file
329 2022-06-10 14:30  E6-2. 1st fl. #1323  Combinatorial strategy for condensed matter physics: study on rare earth hexaborides thin films file
328 2020-02-13 16:30  E6-6, #119  Enhanced Light-Matter Interactions in Graphene with Noble Metal Plasmonic Structures file
327 2019-11-20 16:00  #5302, E6-2  Correlation between superconducting transition temperature and critical current density in irradiated iron-based superconductors file
326 2019-11-05 16:00  #1323, E6-2  Study on nanomaterials by the development of ultrahigh resolution laser-photoelectron microscopy (PEEM) file
325 2021-12-03 14:30  Zoom webinar  Topological Spin Textures: Skyrmions and Beyond file
324 2019-04-26 16:00  #1323, E6-2  Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network file
» 2023-09-18 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  [CAPP Seminar] Searching for axions in quantum vacuum birefringence file