Quantum Walks with Dynamical Control: Graph Engineering, Initial State Preparation and State Transfer
| Autor: | Nitsche, Thomas, Elster, Fabian, Novotný, Jaroslav, Gábris, Aurél, Jex, Igor, Barkhofen, Sonja, Silberhorn, Christine |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | New J. Phys. 18 063017 (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1367-2630/18/6/063017 |
| Popis: | 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-localized 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. Comment: Updated the article to the version eventually published |
| Databáze: | arXiv |
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