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
228 2019-05-09 16:00  #1323, E6-2  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
227 2019-05-08 16:00  E6 Room(#1323)  Imaging valley dependent electron transport in 2D semiconductors file
226 2019-05-03 11:00  E6-2. 2st fl. #2502  Exotic Magnetism file
225 2019-05-02 16:00  #1323, E6-2  Anomalous optical properties of halide perovskites file
224 2019-05-01 16:00  #1323, E6-2  Raman and x-ray scattering study on correlated electron systems: two case examples file
223 2019-04-26 16:00  #1323, E6-2  Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network file
222 2019-04-23 16:00  #1323, E6-2  From Mott physics to high-temperature superconductivity file
221 2019-04-19 16:00  E6-2. 1st fl. #1323  Graphene and hBN heterostructures file
220 2019-04-19 14:30  E6-2. 1st fl. #1323  A family of finite-temperature electronic phase transitions in graphene multilayers file
219 2019-04-19 11:00  #1323, E6-2  First-principles studies of semiconductors for solar cell applications file
218 2019-04-11 16:00  #1323, E6-2  Massive screening for cathode active materials using deep neural network file
217 2019-04-04 16:00  #1323, E6-2  Chiral spin-photon interaction at nanoscale file
216 2019-03-29 16:00  E6-2. 1st fl. #1323  Coherent Quantum Control and Magnetism on atoms – Trapped ion and ESR STM file
215 2019-03-29 14:30  E6-2. 1st fl. #1323  Epitaxial Multifunctional Oxide Thin Films for Novel Electronics file
214 2019-03-26 15:00  E6-2. 2st fl. #2501  Consideration of thermal Hall effect in frustrated and un-frustrated quantum magnets file
213 2019-03-21 16:00  RM. 1323, E6-2  Spring 2019: Physics Seminar Serises file
212 2019-02-25 16:00  Rm. 1501 (E6)  Spring 2019: Physics Colloquium file
211 2019-02-21 16:00  #5313, E6-2  B-meson charged current anomalies - Theoretical status file
210 2019-01-23 16:00  Rm. C303, Creation Hall (3F), Munji Campus  Ultrasensitive Microwave Bolometer: Opportunity for Axion Detectors file
209 2019-01-09 16:00  E6-2. 2nd fl. #2501  Molecular Mott state in the deficient spinel GaV4S8 file