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Micromotion-enabled improvement of quantum logic gates with trapped ions

Alejandro Bermudez, Philipp Schindler, Thomas Monz, Rainer Blatt, Markus Müller, Markus Muller

New Journal of Physics, Volume: 19, Issue: 11, Start page: 113038

Swansea University Author: Markus Muller

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DOI (Published version): 10.1088/1367-2630/aa86eb

Abstract

The micromotion of ion crystals confined in Paul traps is usually considered an inconvenient nuisance, and is thus typically minimised in high-precision experiments such as high-fidelity quantum gates for quantum infor- mation processing. In this work, we introduce a particular scheme where this beh...

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Published in: New Journal of Physics
ISSN: 1367-2630
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa36264
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first_indexed 2017-10-25T19:11:58Z
last_indexed 2020-07-14T13:02:03Z
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spelling 2020-07-14T12:09:23.2908249 v2 36264 2017-10-25 Micromotion-enabled improvement of quantum logic gates with trapped ions 9b2ac559af27c967ece69db08b83762a Markus Muller Markus Muller true false 2017-10-25 FGSEN The micromotion of ion crystals confined in Paul traps is usually considered an inconvenient nuisance, and is thus typically minimised in high-precision experiments such as high-fidelity quantum gates for quantum infor- mation processing. In this work, we introduce a particular scheme where this behavior can be reversed, making micromotion beneficial for quantum information processing. We show that using laser-driven micromotion side- bands, it is possible to engineer state-dependent dipole forces with a reduced effect of off-resonant couplings to the carrier transition. This allows one, in a certain parameter regime, to devise entangling gate schemes based on geometric phase gates with both a higher speed and a lower error, which is attractive in light of current efforts towards fault-tolerant quantum information processing. We discuss the prospects of reaching the parameters required to observe this micromotion-enabled improvement in experiments with current and future trap designs. Journal Article New Journal of Physics 19 11 113038 1367-2630 Quantum Computing, Trapped Ions, Quantum Optics, Micromotion, Entanglement 31 12 2017 2017-12-31 10.1088/1367-2630/aa86eb COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2020-07-14T12:09:23.2908249 2017-10-25T15:33:44.7097807 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Alejandro Bermudez 1 Philipp Schindler 2 Thomas Monz 3 Rainer Blatt 4 Markus Müller 5 Markus Muller 6 0036264-06122017175742.pdf Bermudez_2017_New_Jv2.pdf 2017-12-06T17:57:42.4870000 Output 1367417 application/pdf Version of Record true 2017-12-06T00:00:00.0000000 Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. true eng
title Micromotion-enabled improvement of quantum logic gates with trapped ions
spellingShingle Micromotion-enabled improvement of quantum logic gates with trapped ions
Markus Muller
title_short Micromotion-enabled improvement of quantum logic gates with trapped ions
title_full Micromotion-enabled improvement of quantum logic gates with trapped ions
title_fullStr Micromotion-enabled improvement of quantum logic gates with trapped ions
title_full_unstemmed Micromotion-enabled improvement of quantum logic gates with trapped ions
title_sort Micromotion-enabled improvement of quantum logic gates with trapped ions
author_id_str_mv 9b2ac559af27c967ece69db08b83762a
author_id_fullname_str_mv 9b2ac559af27c967ece69db08b83762a_***_Markus Muller
author Markus Muller
author2 Alejandro Bermudez
Philipp Schindler
Thomas Monz
Rainer Blatt
Markus Müller
Markus Muller
format Journal article
container_title New Journal of Physics
container_volume 19
container_issue 11
container_start_page 113038
publishDate 2017
institution Swansea University
issn 1367-2630
doi_str_mv 10.1088/1367-2630/aa86eb
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
active_str 0
description The micromotion of ion crystals confined in Paul traps is usually considered an inconvenient nuisance, and is thus typically minimised in high-precision experiments such as high-fidelity quantum gates for quantum infor- mation processing. In this work, we introduce a particular scheme where this behavior can be reversed, making micromotion beneficial for quantum information processing. We show that using laser-driven micromotion side- bands, it is possible to engineer state-dependent dipole forces with a reduced effect of off-resonant couplings to the carrier transition. This allows one, in a certain parameter regime, to devise entangling gate schemes based on geometric phase gates with both a higher speed and a lower error, which is attractive in light of current efforts towards fault-tolerant quantum information processing. We discuss the prospects of reaching the parameters required to observe this micromotion-enabled improvement in experiments with current and future trap designs.
published_date 2017-12-31T03:45:17Z
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score 11.036334

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