Reduction of trapped-ion anomalous heating by in situ surface plasma cleaning
Anomalous motional heating is a major obstacle to scalable quantum information processing with trapped ions. Although the source of this heating is not yet understood, several previous studies suggest that noise due to surface contaminants is the limiting heating mechanism in some instances. We demo...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2015
|
| Online Access: | http://hdl.handle.net/1721.1/98299 |
| _version_ | 1826209364234469376 |
|---|---|
| author | Chiaverini, John McConnell, Robert P. Bruzewicz, Colin D. Sage, Jeremy M. |
| author2 | Lincoln Laboratory |
| author_facet | Lincoln Laboratory Chiaverini, John McConnell, Robert P. Bruzewicz, Colin D. Sage, Jeremy M. |
| author_sort | Chiaverini, John |
| collection | MIT |
| description | Anomalous motional heating is a major obstacle to scalable quantum information processing with trapped ions. Although the source of this heating is not yet understood, several previous studies suggest that noise due to surface contaminants is the limiting heating mechanism in some instances. We demonstrate an improvement by a factor of 4 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 is considerably gentler than other treatments, such as ion milling or laser cleaning, that have previously been shown to improve ion heating rates. We do not see an improvement in the heating rate when the trap is operated at cryogenic temperatures, pointing to a role of thermally activated surface contaminants in motional heating whose activity may freeze out at low temperatures. |
| first_indexed | 2024-09-23T14:21:40Z |
| format | Article |
| id | mit-1721.1/98299 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:21:40Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/982992022-09-29T08:55:06Z Reduction of trapped-ion anomalous heating by in situ surface plasma cleaning Chiaverini, John McConnell, Robert P. Bruzewicz, Colin D. Sage, Jeremy M. Lincoln Laboratory McConnell, Robert P. Bruzewicz, Colin D. Chiaverini, John Sage, Jeremy M. Anomalous motional heating is a major obstacle to scalable quantum information processing with trapped ions. Although the source of this heating is not yet understood, several previous studies suggest that noise due to surface contaminants is the limiting heating mechanism in some instances. We demonstrate an improvement by a factor of 4 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 is considerably gentler than other treatments, such as ion milling or laser cleaning, that have previously been shown to improve ion heating rates. We do not see an improvement in the heating rate when the trap is operated at cryogenic temperatures, pointing to a role of thermally activated surface contaminants in motional heating whose activity may freeze out at low temperatures. United States. Dept. of Defense. Assistant Secretary of Defense for Research & Engineering (United States. Air Force Contract FA8721-05-C-0002) 2015-09-01T17:01:50Z 2015-09-01T17:01:50Z 2015-08 2015-05 2015-08-28T22:00:11Z Article http://purl.org/eprint/type/JournalArticle 1050-2947 1094-1622 http://hdl.handle.net/1721.1/98299 McConnell, Robert, Colin Bruzewicz, John Chiaverini, and Jeremy Sage. “Reduction of Trapped-Ion Anomalous Heating by in Situ Surface Plasma Cleaning.” Physical Review A 92, no. 2 (August 2015). © 2015 American Physical Society en http://dx.doi.org/10.1103/PhysRevA.92.020302 Physical Review A Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Chiaverini, John McConnell, Robert P. Bruzewicz, Colin D. Sage, Jeremy M. Reduction of trapped-ion anomalous heating by in situ surface plasma cleaning |
| title | Reduction of trapped-ion anomalous heating by in situ surface plasma cleaning |
| title_full | Reduction of trapped-ion anomalous heating by in situ surface plasma cleaning |
| title_fullStr | Reduction of trapped-ion anomalous heating by in situ surface plasma cleaning |
| title_full_unstemmed | Reduction of trapped-ion anomalous heating by in situ surface plasma cleaning |
| title_short | Reduction of trapped-ion anomalous heating by in situ surface plasma cleaning |
| title_sort | reduction of trapped ion anomalous heating by in situ surface plasma cleaning |
| url | http://hdl.handle.net/1721.1/98299 |
| work_keys_str_mv | AT chiaverinijohn reductionoftrappedionanomalousheatingbyinsitusurfaceplasmacleaning AT mcconnellrobertp reductionoftrappedionanomalousheatingbyinsitusurfaceplasmacleaning AT bruzewiczcolind reductionoftrappedionanomalousheatingbyinsitusurfaceplasmacleaning AT sagejeremym reductionoftrappedionanomalousheatingbyinsitusurfaceplasmacleaning |