| Zugriffsnummer | 21087 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Quasiparticle transitions in charge-phase qubits probed by rf oscillations |
| Autor(in); Institution |
Könemann, Jens; 2.4, Quantenelektronik, PTB-Braunschweig
Zangerle, Hermann; 2.4, Quantenelektronik, PTB-Braunschweig
Mackrodt, Brigitte; 2.4, Quantenelektronik, PTB-Braunschweig
Dolata, Ralf; 2.4, Quantenelektronik, PTB-Braunschweig
Zorin, Alexander B.; 2.4, Quantenelektronik, PTB-Braunschweig
|
| Quelle/Jahr | Physical Review B: 76 (2007), 13, 134507-1 - 134507-7 |
| ISSN | 1098-0121 |
| DOI | |
| Verlag | Melville, NY: APS |
| Klassifikationscode | PACS: 74.50.+r ; PACS: 85.25.Cp ; PACS: 73.40.Gk |
| Freie Schlagworte | Josephson charge-phase qubit ; Quasiparticle tunneling ; Selection rule for quantum transitions |
| Zusammenfassung | We investigated transitions in an Al charge-phase qubit of superconducting quantum interference device configuration which was inductively coupled to an rf tank circuit that made it possible to read out the state by measuring the Josephson inductance of the qubit. Depending on the flux and charge bias and on the amplitude of the rf oscillations, we probed either the ground state or a dynamic change of the qubit states which we attributed to stochastic single quasiparticle tunneling onto and off the qubit island, involving an exchange of energy with the qubit. Within the scope of this model, a selection rule for quasiparticle-induced transitions in the qubit is discussed. Online auch erschienen in: Virtual Journal of Applications of Superconductivity 13(2007),8 Online auch erschienen in: Virtual Journal of Nanoscale Science & Technology 16(2007),17 Online auch erschienen in: Virtual Journal of Quantum Information 7(2007),10 |
