title: In-vacuum active electronics for microfabricated ion traps.
abstract: The advent of microfabricated ion traps for the quantum information community has allowed research groups to build traps that incorporate an unprecedented number of trapping zones. However, as device complexity has grown, the number of digital-to-analog converter (DAC) channels needed to control these devices has grown as well, with some of the largest trap assemblies now requiring nearly one hundred DAC channels. Providing electrical connections for these channels into a vacuum chamber can be bulky and difficult to scale beyond the current numbers of trap electrodes. This paper reports on the development and testing of an in-vacuum DAC system that uses only 9 vacuum feedthrough connections to control a 78-electrode microfabricated ion trap. The system is characterized by trapping single and multiple (40)Ca(+) ions. The measured axial mode stability, ion heating rates, and transport fidelities for a trapped ion are comparable to systems with external (air-side) commercial DACs.
authors.affiliation: Georgia Tech Research Institute, Atlanta, Georgia 30332, USA.
authors.forename: Nicholas D
authors.initials: ND
authors.lastname: Guise
authors.affiliation: Georgia Tech Research Institute, Atlanta, Georgia 30332, USA.
authors.forename: Spencer D
authors.initials: SD
authors.lastname: Fallek
authors.affiliation: Georgia Tech Research Institute, Atlanta, Georgia 30332, USA.
authors.forename: Harley
authors.initials: H
authors.lastname: Hayden
authors.affiliation: Georgia Tech Research Institute, Atlanta, Georgia 30332, USA.
authors.forename: C-S
authors.initials: CS
authors.lastname: Pai
authors.affiliation: Georgia Tech Research Institute, Atlanta, Georgia 30332, USA.
authors.forename: Curtis
authors.initials: C
authors.lastname: Volin
authors.affiliation: Georgia Tech Research Institute, Atlanta, Georgia 30332, USA.
authors.forename: K R
authors.initials: KR
authors.lastname: Brown
authors.affiliation: Georgia Tech Research Institute, Atlanta, Georgia 30332, USA.
authors.forename: J True
authors.initials: JT
authors.lastname: Merrill
authors.affiliation: Georgia Tech Research Institute, Atlanta, Georgia 30332, USA.
authors.forename: Alexa W
authors.initials: AW
authors.lastname: Harter
authors.affiliation: Georgia Tech Research Institute, Atlanta, Georgia 30332, USA.
authors.forename: Jason M
authors.initials: JM
authors.lastname: Amini
authors.affiliation: Honeywell International, Plymouth, Minnesota 55441, USA.
authors.forename: Lisa M
authors.initials: LM
authors.lastname: Lust
authors.affiliation: Honeywell International, Plymouth, Minnesota 55441, USA.
authors.forename: Kelly
authors.initials: K
authors.lastname: Muldoon
authors.affiliation: Honeywell International, Plymouth, Minnesota 55441, USA.
authors.forename: Doug
authors.initials: D
authors.lastname: Carlson
authors.affiliation: Honeywell International, Plymouth, Minnesota 55441, USA.
authors.forename: Jerry
authors.initials: J
authors.lastname: Budach