| Presentation | 2013-10-02 Large dispersive shift observed in a superconducting circuit-QED system Kunihiro INOMATA, Tsuyoshi YAMAMOTO, Pierre-marie BILLANGEON, Yasunobu NAKAMURA, Jaw-shen TSAI, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We demonstrate enhancement of the dispersive frequency shift in a coplanar waveguide resonator induced by a capacitively-coupled superconducting flux qubit in the straddling regime. The magnitude of the observed shift, 80MHz for the qubit-resonator detuning of 5GHz, is quantitatively explained by the generalized Rabi model which takes into account the contribution of the qubit higher energy levels. By applying the enhanced dispersive shift to the qubit readout, we achieved 90% contrast of the Rabi oscillations which is mainly limited by the energy relaxation of the qubit. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | superconducting flux qubit / superconducting resonator / dispersive shift |
| Paper # | SCE2013-27 |
| Date of Issue |
| Conference Information | |
| Committee | SCE |
|---|---|
| Conference Date | 2013/9/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Large dispersive shift observed in a superconducting circuit-QED system |
| Sub Title (in English) | |
| Keyword(1) | superconducting flux qubit |
| Keyword(2) | superconducting resonator |
| Keyword(3) | dispersive shift |
| 1st Author's Name | Kunihiro INOMATA |
| 1st Author's Affiliation | RIKEN, Center for Emergent Matter Science() |
| 2nd Author's Name | Tsuyoshi YAMAMOTO |
| 2nd Author's Affiliation | RIKEN, Center for Emergent Matter Science:Smart Energy Research Laboratories |
| 3rd Author's Name | Pierre-marie BILLANGEON |
| 3rd Author's Affiliation | RIKEN, Center for Emergent Matter Science |
| 4th Author's Name | Yasunobu NAKAMURA |
| 4th Author's Affiliation | RIKEN, Center for Emergent Matter Science:Research Center for Advanced Science and Technology, The University of Tokyo |
| 5th Author's Name | Jaw-shen TSAI |
| 5th Author's Affiliation | RIKEN, Center for Emergent Matter Science:Smart Energy Research Laboratories |
| Date | 2013-10-02 |
| Paper # | SCE2013-27 |
| Volume (vol) | vol.113 |
| Number (no) | 232 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |