Optimized Coplanar Waveguide Resonators for a Superconductor-Atom Interface

Fuente: arXiv
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Autori principali: Beck, M. A., Isaacs, J. A., Booth, D., Pritchard, J. D., Saffman, M., McDermott, R.
Natura: Preprint
Pubblicazione: 2016
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author Beck, M. A.
Isaacs, J. A.
Booth, D.
Pritchard, J. D.
Saffman, M.
McDermott, R.
author_facet Beck, M. A.
Isaacs, J. A.
Booth, D.
Pritchard, J. D.
Saffman, M.
McDermott, R.
contents We describe the design and characterization of superconducting coplanar waveguide cavities tailored to facilitate strong coupling between superconducting quantum circuits and single trapped Rydberg atoms. For initial superconductor-atom experiments at 4.2 K, we show that resonator quality factors above $10^4$ can be readily achieved. Furthermore, we demonstrate that the incorporation of thick-film copper electrodes at a voltage antinode of the resonator provides a route to enhance the zero-point electric fields of the resonator in a trapping region that is 40 $μ$m above the chip surface, thereby minimizing chip heating from scattered trap light. The combination of high resonator quality factor and strong electric dipole coupling between the resonator and the atom should make it possible to achieve the strong coupling limit of cavity quantum electrodynamics with this system.
format Preprint
id arxiv_https___arxiv_org_abs_1605_01996
institution arXiv
publishDate 2016
record_format arxiv
spellingShingle Optimized Coplanar Waveguide Resonators for a Superconductor-Atom Interface
Beck, M. A.
Isaacs, J. A.
Booth, D.
Pritchard, J. D.
Saffman, M.
McDermott, R.
Superconductivity
Atomic Physics
Quantum Physics
We describe the design and characterization of superconducting coplanar waveguide cavities tailored to facilitate strong coupling between superconducting quantum circuits and single trapped Rydberg atoms. For initial superconductor-atom experiments at 4.2 K, we show that resonator quality factors above $10^4$ can be readily achieved. Furthermore, we demonstrate that the incorporation of thick-film copper electrodes at a voltage antinode of the resonator provides a route to enhance the zero-point electric fields of the resonator in a trapping region that is 40 $μ$m above the chip surface, thereby minimizing chip heating from scattered trap light. The combination of high resonator quality factor and strong electric dipole coupling between the resonator and the atom should make it possible to achieve the strong coupling limit of cavity quantum electrodynamics with this system.
title Optimized Coplanar Waveguide Resonators for a Superconductor-Atom Interface
topic Superconductivity
Atomic Physics
Quantum Physics
url https://arxiv.org/abs/1605.01996