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Interacting Qubit-Photon Bound States with Superconducting Circuits
Qubits strongly coupled to a photonic crystal give rise to qubit-photon dressed bound states. These bound states, comprising the qubits and spatially localized photonic modes induced around the qubits, are the basis for many exotic physical scenarios. The localization of these states changes with qu...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7047877/ https://www.ncbi.nlm.nih.gov/pubmed/32117578 http://dx.doi.org/10.1103/physrevx.9.011021 |
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author | Sundaresan, Neereja M. Lundgren, Rex Zhu, Guanyu Gorshkov, Alexey V. Houck, Andrew A. |
author_facet | Sundaresan, Neereja M. Lundgren, Rex Zhu, Guanyu Gorshkov, Alexey V. Houck, Andrew A. |
author_sort | Sundaresan, Neereja M. |
collection | PubMed |
description | Qubits strongly coupled to a photonic crystal give rise to qubit-photon dressed bound states. These bound states, comprising the qubits and spatially localized photonic modes induced around the qubits, are the basis for many exotic physical scenarios. The localization of these states changes with qubit detuning from the photonic crystal band edge, offering an avenue of in situ control of bound-state interaction. Here, we present experimental results from a device with two transmon qubits coupled to a superconducting microwave photonic crystal and realize tunable on-site and interbound state interactions. We observe a fourth-order two-photon virtual process between bound states indicating strong coupling between the photonic crystal and transmon qubits. Because of their localization-dependent interaction, these states offer the ability to realize one-dimensional chains of bound states with tunable and potentially long-range interactions that preserve the qubits’ spatial organization. The widely tunable, strong, and robust interactions demonstrated with this system are promising benchmarks towards realizing larger, more complex systems that use bound states to build and study quantum spin models. |
format | Online Article Text |
id | pubmed-7047877 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
record_format | MEDLINE/PubMed |
spelling | pubmed-70478772020-02-28 Interacting Qubit-Photon Bound States with Superconducting Circuits Sundaresan, Neereja M. Lundgren, Rex Zhu, Guanyu Gorshkov, Alexey V. Houck, Andrew A. Phys Rev X Article Qubits strongly coupled to a photonic crystal give rise to qubit-photon dressed bound states. These bound states, comprising the qubits and spatially localized photonic modes induced around the qubits, are the basis for many exotic physical scenarios. The localization of these states changes with qubit detuning from the photonic crystal band edge, offering an avenue of in situ control of bound-state interaction. Here, we present experimental results from a device with two transmon qubits coupled to a superconducting microwave photonic crystal and realize tunable on-site and interbound state interactions. We observe a fourth-order two-photon virtual process between bound states indicating strong coupling between the photonic crystal and transmon qubits. Because of their localization-dependent interaction, these states offer the ability to realize one-dimensional chains of bound states with tunable and potentially long-range interactions that preserve the qubits’ spatial organization. The widely tunable, strong, and robust interactions demonstrated with this system are promising benchmarks towards realizing larger, more complex systems that use bound states to build and study quantum spin models. 2019 /pmc/articles/PMC7047877/ /pubmed/32117578 http://dx.doi.org/10.1103/physrevx.9.011021 Text en Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/) license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
spellingShingle | Article Sundaresan, Neereja M. Lundgren, Rex Zhu, Guanyu Gorshkov, Alexey V. Houck, Andrew A. Interacting Qubit-Photon Bound States with Superconducting Circuits |
title | Interacting Qubit-Photon Bound States with Superconducting Circuits |
title_full | Interacting Qubit-Photon Bound States with Superconducting Circuits |
title_fullStr | Interacting Qubit-Photon Bound States with Superconducting Circuits |
title_full_unstemmed | Interacting Qubit-Photon Bound States with Superconducting Circuits |
title_short | Interacting Qubit-Photon Bound States with Superconducting Circuits |
title_sort | interacting qubit-photon bound states with superconducting circuits |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7047877/ https://www.ncbi.nlm.nih.gov/pubmed/32117578 http://dx.doi.org/10.1103/physrevx.9.011021 |
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