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| Hauptseite > Publikationsdatenbank > Demonstration of Quantum Brachistochrones between Distant States of an Atom > print |
| Hauptseite > Publikationsdatenbank > Demonstration of Quantum Brachistochrones between Distant States of an Atom > print |
| 001 | 907162 | ||
| 005 | 20230123101912.0 | ||
| 024 | 7 | _ | |a 10.1103/PhysRevX.11.011035 |2 doi |
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| 037 | _ | _ | |a FZJ-2022-01871 |
| 082 | _ | _ | |a 530 |
| 100 | 1 | _ | |a Lam, Manolo R. |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Demonstration of Quantum Brachistochrones between Distant States of an Atom |
| 260 | _ | _ | |a College Park, Md. |c 2021 |b APS |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1649394926_13301 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a Transforming an initial quantum state into a target state through the fastest possible route—a quantum brachistochrone—is a fundamental challenge for many technologies based on quantum mechanics. In two-level systems, the quantum brachistochrone solutions are long known. These solutions, however, are not applicable to larger systems, especially when the target state cannot be reached through a local transformation. Here, we demonstrate fast coherent transport of an atomic wave packet over a distance of 15 times its size—a paradigmatic case of quantum processes going beyond the two-level system. Our measurements of the transport fidelity reveal the existence of a minimum duration—a quantum speed limit—for the coherent splitting and recombination of matter waves. We obtain physical insight into this limit by relying on a geometric interpretation of quantum state dynamics. These results shed light on a fundamental limit of quantum state dynamics and are expected to find relevant applications in quantum sensing and quantum computing. |
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| 700 | 1 | _ | |a Peter, Natalie |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Groh, Thorsten |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Alt, Wolfgang |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Robens, Carsten |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Meschede, Dieter |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Negretti, Antonio |0 P:(DE-HGF)0 |b 6 |
| 700 | 1 | _ | |a Montangero, Simone |0 P:(DE-HGF)0 |b 7 |
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| 700 | 1 | _ | |a Alberti, Andrea |0 P:(DE-HGF)0 |b 9 |e Corresponding author |
| 773 | _ | _ | |a 10.1103/PhysRevX.11.011035 |g Vol. 11, no. 1, p. 011035 |0 PERI:(DE-600)2622565-7 |n 1 |p 011035 |t Physical review / X |v 11 |y 2021 |x 2160-3308 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/907162/files/PhysRevX.11.011035.pdf |y OpenAccess |
| 909 | C | O | |o oai:juser.fz-juelich.de:907162 |p openaire |p open_access |p VDB |p driver |p dnbdelivery |
| 910 | 1 | _ | |a Institut für Angewandte Physik, Universität Bonn, 53115 Bonn, Germany |0 I:(DE-HGF)0 |b 0 |6 P:(DE-HGF)0 |
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| 910 | 1 | _ | |a Dipartimento di Fisica e Astronomia “G. Galilei,” Universit`a degli Studi di Padova, and Istituto Nazionale di Fisica Nucleare, 35131 Padova, Italy |0 I:(DE-HGF)0 |b 7 |6 P:(DE-HGF)0 |
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