| Presentation | 2006-01-27 Recent Progress in the Research of Superconducting Qubit : interaction between a qubit and a quantum of LC-resonator Kouichi SEMBA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Superconducting circuit containing Josephson junctions is one of the promising candidates as a quantum bit (qubit) which is an essential building block for quantum computation. A flux qubit is represented by energetically lowest two collective states of macroscopic numbers of Cooper pairs which are linear combination of clockwise and counterclockwise persistent-current states. By replacing an atom with a flux qubit (artificial atom), and a high-Q cavity with an LC-circuit, quantum optics type experiments[1] are possible on a superconductor chip[2][3]. We have observed, for the first time, the vacuum Rabi oscillations in a superconducting flux qubit LC-oscillator coupled system [4]. We have also obtained evidence of level quantization of the LC circuit by observing the change in the oscillation frequency when the LC circuit was not initially in the vacuum state. Sharing a single superconducting LC-circuit with many flux qubits as a quantum information bus, we are able to manipulate separated multiple qubits by a set of microwave pulses. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | superconductivity / qubit / resonator / vacuum Rabi oscillation |
| Paper # | SCE2005-29 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2006/1/20(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Superconductive Electronics (SCE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Recent Progress in the Research of Superconducting Qubit : interaction between a qubit and a quantum of LC-resonator |
| Sub Title (in English) | |
| Keyword(1) | superconductivity |
| Keyword(2) | qubit |
| Keyword(3) | resonator |
| Keyword(4) | vacuum Rabi oscillation |
| 1st Author's Name | Kouichi SEMBA |
| 1st Author's Affiliation | NTT Basic Research Laboratories, NTT Corporation() |
| Date | 2006-01-27 |
| Paper # | SCE2005-29 |
| Volume (vol) | vol.105 |
| Number (no) | 575 |
| Page | pp.pp.- |
| #Pages | 6 |
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