| Zugriffsnummer | 22977 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Quantum dynamics of superconducting nano-circuits: phase qubit, charge qubit and rhombi chains |
| Autor(in); Institution |
Buisson, O.; Institut Néel, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
Guichard, W.; Institut Néel, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
Hekking, F. W. J.; LPMMC, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
Lévy, L.; Institut Néel, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
Pannetier, B.; Institut Néel, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
Dolata, Ralf; 2.4, Quantenelektronik, PTB-Braunschweig
Zorin, Alexander B.; 2.4, Quantenelektronik, PTB-Braunschweig
Didier, N.; LPMMC, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
Fay, A.; Institut Néel, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
Hoskinson, E.; Institut Néel, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
Lecocq, F.; Institut Néel, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
Peng, Z. H.; Institut Néel, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
Pop, I. M.; Institut Néel, C.N.R.S. and Université Joseph Fourier, Grenoble, FRANCE
|
| Quelle/Jahr | Quantum Information Processing: 8 (2009), 2/3, 155 - 182 |
| ISSN | 1570-0755 (PRINT) ; 1573-1332 (ONLINE) |
| DOI | |
| Verlag | Dordrecht [u.a.]: Springer |
| Klassifikationscode | PACS: 03.67.Lx ; PACS: 73.23.-b ; PACS: 74.81.Fa ; PACS: 85.25.Cp |
| Freie Schlagworte | Superconducting qubit device ; Josephson quantum nano-circuits |
| Zusammenfassung | We have studied different quantum dynamics of superconducting nano-circuits with Josephson junctions. A dc SQUID, when it is strongly decoupled from the environment, demonstrates two-level and multilevel dynamics. We have realized a two qubits coupled circuit based on a dc SQUID in parallel with an asymmetric Cooper pair transistor (ACPT). The ACPT behaves as a charge qubit. Its asymmetry produces a strong tunable coupling with the dc SQUID which is used to realize entangled states between the two qubits and new read-out of the charge qubit based on adiabatic quantum transfer. We have measured the current-phase relations of different rhombi chains in the presence or absence of quantum fluctuations which confirm theoretical predictions. |
Zitierung
Buisson, O., Guichard, W., Hekking, F. W. J., Lévy, L., Pannetier, B., Dolata, R., Zorin, A. B., Didier, N., Fay, A., Hoskinson, E., Lecocq, F., Peng, Z. H., & Pop, I. M. (2009). Quantum dynamics of superconducting nano-circuits: phase qubit, charge qubit and rhombi chains. Quantum Information Processing, 8(2/3), 155–182. https://doi.org/10.1007/s11128-009-0094-0