visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-07-26 10:00 
연사  
장소 CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus 

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. Chelsea BARTRAM (SLAC National Laboratory)
 
Date: July 26, 2023 (Wednesday)   
 
Time: 10:00 AM (KST)
 
Venue: CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus
 
Meeting ID: 610 806 8959
Passcode: 131015
 
Topic: Am Expansive Search for Dark Matter with ADMX and DM Radio
 
Abstract:
One of the most well-motivated dark matter candidates is the axion, a particle that is predicted by the solution to another long-standing mystery in physics, the strong CP problem. An established axion search technique leverages the Inverse Primakoff effect by which an axion converts to a photon in a magnetic field. This so-called ‘photon channel’ can be probed using an ‘axion haloscope’ which consists of an exquisitely sensitive receiver chain in a strong magnetic field. Recent work has further advanced the theoretical motivation for axions over a wide range of masses. 

The Axion Dark Matter eXperiment (ADMX) implements one form of haloscope that relies on a microwave cavity. Previously, the ADMX collaboration has searched for axions at DFSZ sensitivity from 950-1020 MHz and two times DFSZ sensitivity from 800-950 MHz. Preliminary results from a more recent search will be presented, as well as plans to cover from 1020 to 1350 MHz with the next data-taking run. 

 

 

At low masses, O(0.1-100neV), a promising search technique uses a lumped-element detector.  A prototype experiment, ABRACADABRA-10cm, demonstrated the viability of the lumped-element approach and set world-leading limits on low-mass axions. The DMRadio program will extend the technique with a series of larger, more sensitive detectors that will be capable of probing QCD axions and axion-like particles over a wide range of masses below 1 μeV

번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
234 2019-06-12 15:00    The relation between free and interacting fermionic SPT phases file
233 2019-06-04 17:00    Stochastic nature of bacterial eradication using antibiotics file
232 2019-05-31 11:00    Cavity QED with Spin Qubits file
231 2019-05-30 16:00    Tuning the excitonic properties of semiconductors with light-matter interactions file
230 2019-05-24 16:00    Infrared spectroscopy study on metal-insulator transitions in layered perovskite iridates file
229 2019-05-21 16:00    Classification of flat bands according to the band-crossing singularity of Bloch wave functions file
228 2019-05-09 16:00    Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
227 2019-05-08 16:00    Imaging valley dependent electron transport in 2D semiconductors file
226 2019-05-03 11:00    Exotic Magnetism file
225 2019-05-02 16:00    Anomalous optical properties of halide perovskites file
224 2019-05-01 16:00    Raman and x-ray scattering study on correlated electron systems: two case examples file
223 2019-04-26 16:00    Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network file
222 2019-04-23 16:00    From Mott physics to high-temperature superconductivity file
221 2019-04-19 16:00    Graphene and hBN heterostructures file
220 2019-04-19 14:30    A family of finite-temperature electronic phase transitions in graphene multilayers file
219 2019-04-19 11:00    First-principles studies of semiconductors for solar cell applications file
218 2019-04-11 16:00    Massive screening for cathode active materials using deep neural network file
217 2019-04-04 16:00    Chiral spin-photon interaction at nanoscale file
216 2019-03-29 16:00    Coherent Quantum Control and Magnetism on atoms – Trapped ion and ESR STM file
215 2019-03-29 14:30    Epitaxial Multifunctional Oxide Thin Films for Novel Electronics file