Efficient bosonic nonlinear phase gates
Abstract Continuous-variable (CV) quantum information processing harnesses versatile experimental tools that leverage the power of infinite-dimensional oscillators controlled by a single qubit. Increasingly available elementary Rabi gates have been proposed as a resource for implementing universal C...
Main Authors: | , |
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Format: | Article |
Language: | English |
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Nature Portfolio
2024-02-01
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Series: | npj Quantum Information |
Online Access: | https://doi.org/10.1038/s41534-024-00816-x |
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author | Kimin Park Radim Filip |
author_facet | Kimin Park Radim Filip |
author_sort | Kimin Park |
collection | DOAJ |
description | Abstract Continuous-variable (CV) quantum information processing harnesses versatile experimental tools that leverage the power of infinite-dimensional oscillators controlled by a single qubit. Increasingly available elementary Rabi gates have been proposed as a resource for implementing universal CV gates, but the requirement of many weak, non-commuting gates is a bottleneck in scaling up such an approach. In this study, we propose a resource-efficient technique using Fourier expansion to implement arbitrary non-linear phase gates in a single oscillator. This method reduces the number of sequentially required gates exponentially. These gates represented by cubic, quartic, and other arbitrary nonlinear potentials have applications in CV quantum information processing with infinite-dimensional oscillators controlled by a single qubit. Our method outperforms previous approaches and enables the experimental realization of a wide range of applications, including the development of bosonic quantum sensors, simulations, and computation using trapped ions and superconducting circuits. |
first_indexed | 2024-03-07T14:47:33Z |
format | Article |
id | doaj.art-578d6604fdb642a8ac49e74bcd3cc934 |
institution | Directory Open Access Journal |
issn | 2056-6387 |
language | English |
last_indexed | 2024-03-07T14:47:33Z |
publishDate | 2024-02-01 |
publisher | Nature Portfolio |
record_format | Article |
series | npj Quantum Information |
spelling | doaj.art-578d6604fdb642a8ac49e74bcd3cc9342024-03-05T19:52:28ZengNature Portfolionpj Quantum Information2056-63872024-02-011011610.1038/s41534-024-00816-xEfficient bosonic nonlinear phase gatesKimin Park0Radim Filip1Department of Optics, Palacky UniversityDepartment of Optics, Palacky UniversityAbstract Continuous-variable (CV) quantum information processing harnesses versatile experimental tools that leverage the power of infinite-dimensional oscillators controlled by a single qubit. Increasingly available elementary Rabi gates have been proposed as a resource for implementing universal CV gates, but the requirement of many weak, non-commuting gates is a bottleneck in scaling up such an approach. In this study, we propose a resource-efficient technique using Fourier expansion to implement arbitrary non-linear phase gates in a single oscillator. This method reduces the number of sequentially required gates exponentially. These gates represented by cubic, quartic, and other arbitrary nonlinear potentials have applications in CV quantum information processing with infinite-dimensional oscillators controlled by a single qubit. Our method outperforms previous approaches and enables the experimental realization of a wide range of applications, including the development of bosonic quantum sensors, simulations, and computation using trapped ions and superconducting circuits.https://doi.org/10.1038/s41534-024-00816-x |
spellingShingle | Kimin Park Radim Filip Efficient bosonic nonlinear phase gates npj Quantum Information |
title | Efficient bosonic nonlinear phase gates |
title_full | Efficient bosonic nonlinear phase gates |
title_fullStr | Efficient bosonic nonlinear phase gates |
title_full_unstemmed | Efficient bosonic nonlinear phase gates |
title_short | Efficient bosonic nonlinear phase gates |
title_sort | efficient bosonic nonlinear phase gates |
url | https://doi.org/10.1038/s41534-024-00816-x |
work_keys_str_mv | AT kiminpark efficientbosonicnonlinearphasegates AT radimfilip efficientbosonicnonlinearphasegates |