Fast Preparation and Detection of a Rydberg Qubit Using Atomic Ensembles.
Phys Rev Lett
; 127(5): 050501, 2021 Jul 30.
Article
em En
| MEDLINE
| ID: mdl-34397223
ABSTRACT
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.
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1
Bases de dados:
MEDLINE
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Estados Unidos