Scalable Arrays of Micro-Penning Traps for Quantum Computing and Simulation

We propose the use of two-dimensional Penning trap arrays as a scalable platform for quantum simulation and quantum computing with trapped atomic ions. This approach involves placing arrays of microstructured electrodes defining static electric quadrupole sites in a magnetic field, with single ions...

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Autores principales:	S. Jain, J. Alonso, M. Grau, J. P. Home
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2020
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/3fe559a0b34f4b9eb3518e42c77ae95c
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spelling	oai:doaj.org-article:3fe559a0b34f4b9eb3518e42c77ae95c2021-12-02T14:23:07ZScalable Arrays of Micro-Penning Traps for Quantum Computing and Simulation10.1103/PhysRevX.10.0310272160-3308https://doaj.org/article/3fe559a0b34f4b9eb3518e42c77ae95c2020-08-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.10.031027http://doi.org/10.1103/PhysRevX.10.031027https://doaj.org/toc/2160-3308We propose the use of two-dimensional Penning trap arrays as a scalable platform for quantum simulation and quantum computing with trapped atomic ions. This approach involves placing arrays of microstructured electrodes defining static electric quadrupole sites in a magnetic field, with single ions trapped at each site and coupled to neighbors via the Coulomb interaction. We solve for the normal modes of ion motion in such arrays and derive a generalized multi-ion invariance theorem for stable motion even in the presence of trap imperfections. We use these techniques to investigate the feasibility of quantum simulation and quantum computation in fixed ion lattices. In homogeneous arrays, we show that sufficiently dense arrays are achievable, with axial, magnetron, and cyclotron motions exhibiting interion dipolar coupling with rates significantly higher than expected decoherence. With the addition of laser fields, these can realize tunable-range interacting spin Hamiltonians. We also show how local control of potentials allows isolation of small numbers of ions in a fixed array and can be used to implement high-fidelity gates. The use of static trapping fields means that our approach is not limited by power requirements as the system size increases, removing a major challenge for scaling which is present in standard radio-frequency traps. Thus, the architecture and methods provided here appear to open a path for trapped-ion quantum computing to reach fault-tolerant scale devices.S. JainJ. AlonsoM. GrauJ. P. HomeAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 10, Iss 3, p 031027 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 S. Jain J. Alonso M. Grau J. P. Home Scalable Arrays of Micro-Penning Traps for Quantum Computing and Simulation
description	We propose the use of two-dimensional Penning trap arrays as a scalable platform for quantum simulation and quantum computing with trapped atomic ions. This approach involves placing arrays of microstructured electrodes defining static electric quadrupole sites in a magnetic field, with single ions trapped at each site and coupled to neighbors via the Coulomb interaction. We solve for the normal modes of ion motion in such arrays and derive a generalized multi-ion invariance theorem for stable motion even in the presence of trap imperfections. We use these techniques to investigate the feasibility of quantum simulation and quantum computation in fixed ion lattices. In homogeneous arrays, we show that sufficiently dense arrays are achievable, with axial, magnetron, and cyclotron motions exhibiting interion dipolar coupling with rates significantly higher than expected decoherence. With the addition of laser fields, these can realize tunable-range interacting spin Hamiltonians. We also show how local control of potentials allows isolation of small numbers of ions in a fixed array and can be used to implement high-fidelity gates. The use of static trapping fields means that our approach is not limited by power requirements as the system size increases, removing a major challenge for scaling which is present in standard radio-frequency traps. Thus, the architecture and methods provided here appear to open a path for trapped-ion quantum computing to reach fault-tolerant scale devices.
format	article
author	S. Jain J. Alonso M. Grau J. P. Home
author_facet	S. Jain J. Alonso M. Grau J. P. Home
author_sort	S. Jain
title	Scalable Arrays of Micro-Penning Traps for Quantum Computing and Simulation
title_short	Scalable Arrays of Micro-Penning Traps for Quantum Computing and Simulation
title_full	Scalable Arrays of Micro-Penning Traps for Quantum Computing and Simulation
title_fullStr	Scalable Arrays of Micro-Penning Traps for Quantum Computing and Simulation
title_full_unstemmed	Scalable Arrays of Micro-Penning Traps for Quantum Computing and Simulation
title_sort	scalable arrays of micro-penning traps for quantum computing and simulation
publisher	American Physical Society
publishDate	2020
url	https://doaj.org/article/3fe559a0b34f4b9eb3518e42c77ae95c
work_keys_str_mv	AT sjain scalablearraysofmicropenningtrapsforquantumcomputingandsimulation AT jalonso scalablearraysofmicropenningtrapsforquantumcomputingandsimulation AT mgrau scalablearraysofmicropenningtrapsforquantumcomputingandsimulation AT jphome scalablearraysofmicropenningtrapsforquantumcomputingandsimulation
_version_	1718391422509383680

Scalable Arrays of Micro-Penning Traps for Quantum Computing and Simulation

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