Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session N27: Superconductivity:Low_Temp_3
11:30 AM–2:30 PM,
Wednesday, March 8, 2023
Room: Room 219
Sponsoring
Unit:
DCMP
Chair: Durga Paudyal, Ames National Laboratory
Abstract: N27.00007 : Intermodulation in a superconducting radio-frequency cavity*
12:42 PM–12:54 PM
Presenter:
Hikaru Ueki
(Louisiana State University)
Authors:
Hikaru Ueki
(Louisiana State University)
Mehdi Zarea
(Louisiana State University)
James A Sauls
(Louisiana State University)
There is another contribution from a cavity wall to intermodulation in an SRF cavity since supercurrents also have a cubic term for the vector potential [2]. This is called the nonlinear Meissner (NLM) effect, and has been performed several studies, both theoretical and experimental. Therefore, we calculate the number of signal photons at intermodulation frequency due to the NLM effect by solving the quasiclassical equations of superconductivity with Maxwell's equations, and discuss impact of the NLM effect on the axion and EH signals in Bogorad's setup [1].
[1] Z. Bogorad et al., Phys. Rev. Lett. 123, 021801 (2019).
[2] J. A. Sauls, Prog. Theor. Exp. Phys. 2022, 033I03 (2022).
*The research of HU and MZ was supported by National Science Foundation Grant PHY-1734332 and the Northwestern-Fermilab Center for Applied Physics & Superconducting Technologies. The work of JAS is supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Superconducting Quantum Materials and Systems Center (SQMS) under contract number DE-AC02-07CH11359.
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