Tuning a 3D microwave cavity via superfluid helium at millikelvin temperatures

@article{Souris2017TuningA3,
  title={Tuning a 3D microwave cavity via superfluid helium at millikelvin temperatures},
  author={F. Souris and Holly Christiani and J. P. Davis},
  journal={Applied Physics Letters},
  year={2017},
  volume={111},
  pages={172601}
}
Frequency tunability of three dimensional (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 4He at millikelvin temperatures, without affecting its intrinsic… 
View PDF on arXiv
16 Citations
Background Citations
1
Results Citations
1

Figures from this paper

16 Citations

Cryogenic microwave filter cavity with a tunability greater than 5 GHz.

A three-dimensional superconducting microwave cavity that shares one wall with a pressurized volume of helium is demonstrated and a tunable cryogenic phase noise filter is implemented, which reduces the phase noise of the source by approximately 10 dB above 400 kHz.

Integrating superfluids with superconducting qubit systems

Superfluid helium's low-loss dielectric properties, excellent thermal conductivity, and unique collective excitations make it an attractive candidate to incorporate into superconducting qubit…

Electro-mechanical tuning of high-Q bulk acoustic phonon modes at cryogenic temperatures

We investigate the electromechanical properties of quartz bulk acoustic wave resonators at extreme cryogenic temperatures. By applying a DC bias voltage, we demonstrate broad frequency tuning of…

Optomechanical Platform for Probing Two-Dimensional Quantum Fluids

In this chapter we present a paradigm of cavity optomechanics with thin films of superfluid helium. Two-dimensional superfluid films offer a number of desirable properties for both optomechanical…

Applying electric and magnetic field bias in a 3D superconducting waveguide cavity with high quality factor

Three-dimensional microwave waveguide cavities are essential tools for many cavity quantum electrodynamics experiments. However, the need to control quantum emitters with dc magnetic fields inside…

Noise Performance and Thermalization of a Single Electron Transistor using Quantum Fluids

We report on low-temperature noise measurements of a single electron transistor (SET) immersed in superfluid 4He. The device acts as a charge sensitive electrometer able to detect the fluctuations of…

Microwave Rabi resonances beyond the small-signal regime

The coupling between microwave fields and atoms (or atom-like systems) is inherently weaker than for optical fields, making microwave signal manipulation for applications like quantum information…

Anomalous Attenuation of Piezoacoustic Surface Waves by Liquid Helium Thin Films

We report on the observation of an anomalously high attenuation of high-frequency surface acoustic waves by thin films of liquid $$^{4}$$4He. The piezoelectric acoustic waves propagate along the…

Experimental implementation of a large scale multipost re-entrant array

We demonstrate possibilities of a large scale multi-post re-entrant cavity with two case studies implemented with the same physical structure. The first demonstration implements two discrete…

Precision measurements of the zero-temperature dielectric constant and density of liquid <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>He</mml:mi><mml:mprescripts /><mml:none /><mml:mn>4</mml:mn></mml:mmultiscripts></mml:math>

References

SHOWING 1-10 OF 24 REFERENCES

Silicon nitride membrane resonators at millikelvin temperatures with quality factors exceeding 10^8

We study the mechanical dissipation of the fundamental mode of millimeter-sized, high quality-factor (Q) metalized silicon nitride membranes at temperatures down to 14?mK using a three-dimensional…

Ground state cooling of a quantum electromechanical system with a silicon nitride membrane in a 3D loop-gap cavity

Cavity electro-(opto-)mechanics gives us a quantum tool to access mechanical modes in a massive object. Here we develop a quantum electromechanical system in which a vibrational mode of a SiNx…

Superfluid optomechanics: coupling of a superfluid to a superconducting condensate

We investigate the low loss acoustic motion of superfluid 4He parametrically coupled to a very low loss, superconducting Nb TE 011 ?> microwave resonator, forming a gram-scale, sideband resolved,…

Reaching 10 ms single photon lifetimes for superconducting aluminum cavities

Three-dimensional microwave cavities have recently been combined with superconducting qubits in the circuit quantum electrodynamics architecture. These cavities should have less sensitivity to…

A split-cavity design for the incorporation of a DC bias in a 3D microwave cavity

We report on a technique for applying a DC bias in a 3D microwave cavity. We achieve this by isolating the two halves of the cavity with a dielectric and directly using them as DC electrodes. As a…

Three-dimensional cavity quantum electrodynamics with a rare-earth spin ensemble

We present cavity QED experiments with an Er:YSO crystal magnetically coupled to a 3D cylindrical sapphire loaded copper resonator. Such waveguide cavities are promising for the realization of a…

Ultra-High Q Acoustic Resonance in Superfluid $$^4$$4He

We report the measurement of the acoustic quality factor of a gram-scale, kilohertz-frequency superfluid resonator, detected through the parametric coupling to a superconducting niobium microwave…

Towards achieving strong coupling in three-dimensional-cavity with solid state spin resonance

We investigate the microwavemagnetic field confinement in several microwave three-dimensional (3D)-cavities, using a 3D finite-element analysis to determine the best design and achieve a strong…

Superfluid nanomechanical resonator for quantum nanofluidics

We have developed a nanomechanical resonator, for which the motional degree of freedom is a superfluid 4He oscillating flow confined to precisely defined nanofluidic channels. It is composed of an…

Spin Pumping in Electrodynamically Coupled Magnon-Photon Systems.

This work uses electrical detection, in combination with microwave transmission, to investigate both resonant and nonresonant magnon-photon coupling at room temperature, and paves the way for pursuing microwave coherent manipulation of pure spin current via the combination of spin pumping and Magnon-Photon coupling.