Reduction of Trapped-Ion Anomalous Heating by in situ Surface Plasma Cleaning
Abstract
Anomalous motional heating represents a major obstacle to scalable quantum information processing with trapped ions. While the source of this heating is not yet understood, several previous studies [1-3] suggest that surface contaminants may be largely responsible. We demonstrate an improvement by a factor of four in the room-temperature heating rate of a niobium surface electrode trap by in situ plasma cleaning of the trap surface. This surface treatment was performed with a simple homebuilt coil assembly and commercially-available matching network and produces less surface heating than other treatments, such as ion milling or laser cleaning, that have previously been shown to improve heating rates. The observed heating-rate reduction persists for at least several days if the system is maintained under ultra-high-vacuum conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 28, 2015
- Accession Number
- AD1034948
Entities
People
- Colin D. Bruzewicz
- Jeremy M. Sage
- John Chiaverini
- Robert P. Mcconnell
Organizations
- MIT Lincoln Laboratory