visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-05-16 16:00 
일시 May 16, 2016 (Mon) 4PM 
장소 #1323(E6-2, 1st Fl.) 
연사 Dr. Daniel Bowring , Fermi National Accelerator Laboratory 

Tuning microwave cavities with biased nonlinear dielectrics for axion searches

 

May 16, 2016 (Mon) 4PM,  #1323(E6-2, 1st Fl.)

Dr. Daniel Bowring , Fermi National Accelerator Laboratory

 

The search for dark matter axions may be aided by haloscopes: tunable, passive, high-Q microwave resonators, placed inside multi-tesla magnetic fields and operating at cryogenic temperatures. (The Axion Dark Matter eXperiment, ADMX, is an example of this technique.) In the presence of strong B-fields, axions may couple to two photons, which in turn may be detected through the resonant excitation of the high-Q microwave cavity and subsequent low-noise amplification and readout. There are points of common interest, then, between experiments like ADMX and the particle accelerator technology community. This talk addresses several of these common points, with an emphasis on tuning strategies. Axion searches above ~1 GHz will employ multiple resonators locked to the same frequency. Fine tuning of individual resonators may be accomplished using thin films of strontium titanate (STO) and related materials, whose dielectic strength can be varied through DC voltage bias.

 

Contact: T.8166(CAPP Administration Office)

번호 날짜 장소 제목
72 2020-02-20 16:00  #1323, E6-2  Unconventional superconductivity in the locally non-centrosymmetric heavy-fermion CeRh2As2 file
71 2019-12-03 16:00  #1323, E6-2  Toward Quantum Materials with Correlated Oxides file
70 2018-10-18 10:00  #1323, E6-2  Understanding membrane protein folding using single-molecule force techniques file
69 2019-08-22 16:00  #1323, E6-2  Physics and Applications in Nanoelectronics and Nonomechanics file
68 2019-07-30 16:00  #1323, E6-2  Dirac fermions and flat bands in correlated kagome metals file
67 2019-06-04 17:00  #1323, E6-2  Stochastic nature of bacterial eradication using antibiotics file
66 2019-04-19 11:00  #1323, E6-2  First-principles studies of semiconductors for solar cell applications file
65 2019-05-24 16:00  #1323, E6-2  Infrared spectroscopy study on metal-insulator transitions in layered perovskite iridates file
64 2019-05-09 16:00  #1323, E6-2  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
63 2019-05-09 16:00  #1323, E6-2  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
62 2019-04-04 16:00  #1323, E6-2  Chiral spin-photon interaction at nanoscale file
61 2019-05-30 16:00  #1323, E6-2  Tuning the excitonic properties of semiconductors with light-matter interactions file
60 2019-04-23 16:00  #1323, E6-2  From Mott physics to high-temperature superconductivity file
59 2019-04-11 16:00  #1323, E6-2  Massive screening for cathode active materials using deep neural network file
58 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
57 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
56 2019-04-26 16:00  #1323, E6-2  Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network file
55 2019-06-17 10:30  #1323, E6-2  Chiral Spintronics file
54 2019-05-01 16:00  #1323, E6-2  Raman and x-ray scattering study on correlated electron systems: two case examples file
53 2019-05-31 11:00  #1323, E6-2  Cavity QED with Spin Qubits file