Fast Preparation and Detection of a Rydberg Qubit Using Atomic Ensembles
We demonstrate a new approach for fast preparation, manipulation, and collective readout of an atomic Rydberg-state qubit. By making use of Rydberg blockade inside a small atomic ensemble, we prepare a single qubit within 3 μs with a success probability of F_{p}=0.93±0.02, rotate it, and read out i...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS)
2022
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| Online Access: | https://hdl.handle.net/1721.1/142315 |
| _version_ | 1811074412104908800 |
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| author | Xu, Wenchao Venkatramani, Aditya V Cantú, Sergio H Šumarac, Tamara Klüsener, Valentin Lukin, Mikhail D Vuletić, Vladan |
| author_facet | Xu, Wenchao Venkatramani, Aditya V Cantú, Sergio H Šumarac, Tamara Klüsener, Valentin Lukin, Mikhail D Vuletić, Vladan |
| author_sort | Xu, Wenchao |
| collection | MIT |
| description | We demonstrate a new approach for fast preparation, manipulation, and collective readout of an atomic Rydberg-state qubit. By making use of Rydberg blockade inside a small atomic ensemble, we prepare a single qubit within 3 μs with a success probability of F_{p}=0.93±0.02, rotate it, and read out its state in 6 μs with a single-shot fidelity of F_{d}=0.92±0.04. The ensemble-assisted detection is 10^{3} times faster than imaging of a single atom with the same optical resolution, and enables fast repeated nondestructive measurement. We observe qubit coherence times of 15 μs, much longer than the π rotation time of 90 ns. Potential applications ranging from faster quantum information processing in atom arrays to efficient implementation of quantum error correction are discussed. |
| first_indexed | 2024-09-23T09:49:03Z |
| format | Article |
| id | mit-1721.1/142315 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:49:03Z |
| publishDate | 2022 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1423152022-05-05T03:35:03Z Fast Preparation and Detection of a Rydberg Qubit Using Atomic Ensembles Xu, Wenchao Venkatramani, Aditya V Cantú, Sergio H Šumarac, Tamara Klüsener, Valentin Lukin, Mikhail D Vuletić, Vladan We demonstrate a new approach for fast preparation, manipulation, and collective readout of an atomic Rydberg-state qubit. By making use of Rydberg blockade inside a small atomic ensemble, we prepare a single qubit within 3 μs with a success probability of F_{p}=0.93±0.02, rotate it, and read out its state in 6 μs with a single-shot fidelity of F_{d}=0.92±0.04. The ensemble-assisted detection is 10^{3} times faster than imaging of a single atom with the same optical resolution, and enables fast repeated nondestructive measurement. We observe qubit coherence times of 15 μs, much longer than the π rotation time of 90 ns. Potential applications ranging from faster quantum information processing in atom arrays to efficient implementation of quantum error correction are discussed. 2022-05-04T15:48:41Z 2022-05-04T15:48:41Z 2021 2022-05-04T15:45:58Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142315 Xu, Wenchao, Venkatramani, Aditya V, Cantú, Sergio H, Šumarac, Tamara, Klüsener, Valentin et al. 2021. "Fast Preparation and Detection of a Rydberg Qubit Using Atomic Ensembles." Physical Review Letters, 127 (5). en 10.1103/PHYSREVLETT.127.050501 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Xu, Wenchao Venkatramani, Aditya V Cantú, Sergio H Šumarac, Tamara Klüsener, Valentin Lukin, Mikhail D Vuletić, Vladan Fast Preparation and Detection of a Rydberg Qubit Using Atomic Ensembles |
| title | Fast Preparation and Detection of a Rydberg Qubit Using Atomic Ensembles |
| title_full | Fast Preparation and Detection of a Rydberg Qubit Using Atomic Ensembles |
| title_fullStr | Fast Preparation and Detection of a Rydberg Qubit Using Atomic Ensembles |
| title_full_unstemmed | Fast Preparation and Detection of a Rydberg Qubit Using Atomic Ensembles |
| title_short | Fast Preparation and Detection of a Rydberg Qubit Using Atomic Ensembles |
| title_sort | fast preparation and detection of a rydberg qubit using atomic ensembles |
| url | https://hdl.handle.net/1721.1/142315 |
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