Tuning a 3D Microwave Cavity via Superfluid Helium at MilliKelvin Temperatures

F. Souris; H. Christiani; J. P. Davis

doi:10.1063/1.4997641

Tuning a 3D Microwave Cavity via Superfluid Helium at MilliKelvin Temperatures

Superconductivity 2018-06-07 v1 Applied Physics Quantum Physics

Authors: F. Souris , H. Christiani , J. P. Davis

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

Frequency tunability of 3D microwave cavities opens up numerous possibilities for their use in hybrid quantum systems and related technologies. For many applications it is desirable to tune the resonance at cryogenic temperatures without mechanical actuation. We show that a superconducting 3D microwave cavity can be tuned at the percent level by taking advantage of the dielectric properties of superfluid $^4$ He at milliKelvin temperatures, without affecting its intrinsic quality factor -- reaching $3\times10^5$ in the present experiment.

Keywords

3D microwave cavity frequency tunability superfluid helium milliKelvin temperatures dielectric properties quality factor

Cite

@article{arxiv.1707.09469,
  title  = {Tuning a 3D Microwave Cavity via Superfluid Helium at MilliKelvin Temperatures},
  author = {F. Souris and H. Christiani and J. P. Davis},
  journal= {arXiv preprint arXiv:1707.09469},
  year   = {2018}
}

Comments

3 pages, 3 figures, submitted version

Tuning a 3D Microwave Cavity via Superfluid Helium at MilliKelvin Temperatures

Abstract

Keywords

Cite

Comments

Related papers