Quantum walks with dynamical control: graph engineering, initial state preparation and state transfer
Quantum walks are a well-established model for the study of coherent transport phenomena and provide a universal platform in quantum information theory. Dynamically influencing the walker’s evolution gives a high degree of flexibility for studying various applications. Here, we present time-multiple...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2016-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/18/6/063017 |
| _version_ | 1797750903848042496 |
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| author | Thomas Nitsche Fabian Elster Jaroslav Novotný Aurél Gábris Igor Jex Sonja Barkhofen Christine Silberhorn |
| author_facet | Thomas Nitsche Fabian Elster Jaroslav Novotný Aurél Gábris Igor Jex Sonja Barkhofen Christine Silberhorn |
| author_sort | Thomas Nitsche |
| collection | DOAJ |
| description | Quantum walks are a well-established model for the study of coherent transport phenomena and provide a universal platform in quantum information theory. Dynamically influencing the walker’s evolution gives a high degree of flexibility for studying various applications. Here, we present time-multiplexed finite quantum walks of variable size, the preparation of non-localised input states and their dynamical evolution. As a further application, we implement a state transfer scheme for an arbitrary input state to two different output modes. The presented experiments rely on the full dynamical control of a time-multiplexed quantum walk, which includes adjustable coin operation as well as the possibility to flexibly configure the underlying graph structures. |
| first_indexed | 2024-03-12T16:39:36Z |
| format | Article |
| id | doaj.art-8c39ac2144314e3785d9eb1e2cc71c2d |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:39:36Z |
| publishDate | 2016-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-8c39ac2144314e3785d9eb1e2cc71c2d2023-08-08T14:34:06ZengIOP PublishingNew Journal of Physics1367-26302016-01-0118606301710.1088/1367-2630/18/6/063017Quantum walks with dynamical control: graph engineering, initial state preparation and state transferThomas Nitsche0Fabian Elster1https://orcid.org/0000-0003-0084-058XJaroslav Novotný2Aurél Gábris3Igor Jex4Sonja Barkhofen5Christine Silberhorn6https://orcid.org/0000-0002-2349-5443Applied Physics, University of Paderborn , Warburger Str. 100, D-33098 Paderborn, GermanyApplied Physics, University of Paderborn , Warburger Str. 100, D-33098 Paderborn, GermanyDepartment of Physics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague , Břehová 7, 11519 Prague, Czech RepublicDepartment of Physics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague , Břehová 7, 11519 Prague, Czech Republic; Department of Theoretical Physics, University of Szeged , Tisza Lajos körút 84, H-6720 Szeged, HungaryDepartment of Physics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague , Břehová 7, 11519 Prague, Czech RepublicApplied Physics, University of Paderborn , Warburger Str. 100, D-33098 Paderborn, GermanyApplied Physics, University of Paderborn , Warburger Str. 100, D-33098 Paderborn, GermanyQuantum walks are a well-established model for the study of coherent transport phenomena and provide a universal platform in quantum information theory. Dynamically influencing the walker’s evolution gives a high degree of flexibility for studying various applications. Here, we present time-multiplexed finite quantum walks of variable size, the preparation of non-localised input states and their dynamical evolution. As a further application, we implement a state transfer scheme for an arbitrary input state to two different output modes. The presented experiments rely on the full dynamical control of a time-multiplexed quantum walk, which includes adjustable coin operation as well as the possibility to flexibly configure the underlying graph structures.https://doi.org/10.1088/1367-2630/18/6/063017dynamic coin controlstate transfergraph engineeringquantum walkstime-multiplexingstate preparation |
| spellingShingle | Thomas Nitsche Fabian Elster Jaroslav Novotný Aurél Gábris Igor Jex Sonja Barkhofen Christine Silberhorn Quantum walks with dynamical control: graph engineering, initial state preparation and state transfer New Journal of Physics dynamic coin control state transfer graph engineering quantum walks time-multiplexing state preparation |
| title | Quantum walks with dynamical control: graph engineering, initial state preparation and state transfer |
| title_full | Quantum walks with dynamical control: graph engineering, initial state preparation and state transfer |
| title_fullStr | Quantum walks with dynamical control: graph engineering, initial state preparation and state transfer |
| title_full_unstemmed | Quantum walks with dynamical control: graph engineering, initial state preparation and state transfer |
| title_short | Quantum walks with dynamical control: graph engineering, initial state preparation and state transfer |
| title_sort | quantum walks with dynamical control graph engineering initial state preparation and state transfer |
| topic | dynamic coin control state transfer graph engineering quantum walks time-multiplexing state preparation |
| url | https://doi.org/10.1088/1367-2630/18/6/063017 |
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