| 超导磁通量子比特中的共振隧穿现象 |
| |
| 引用本文： | 丛山桦,孙国柱,王轶文,曹俊宇,陈健,于杨,吴培亨.超导磁通量子比特中的共振隧穿现象[J].稀有金属材料与工程,2008(Z4). |
| |
| 作者姓名： | 丛山桦 孙国柱 王轶文 曹俊宇 陈健 于杨 吴培亨 |
| |
| 作者单位： | 南京大学超导电子学研究所; |
| |
| 基金项目： | 国家自然科学基金(10704034,10534060); 国家“863”(2006AA03Z214); 国家“973”(2006CB601006) |
| |
| 摘 要： | 在20mK的低温下,在由Nb/AlOx/Nb结构成的磁通量子比特样品上,通过初态的制备,成功观测到了双势阱中的共振隧穿现象。这一现象在不同的势垒高度下,都得到了证实。通过对共振峰随时间演化的测量,发现其演化受到隧穿概率与分布概率的影响。
|
| 关 键 词： | 超导磁通量子比特 共振隧穿 超导量子干涉器件 |
Observation of Resonant Tunneling in a Superconducting Flux Qubit |
| |
| Cong Shanhua,Sun Guozhu,Wang Yiwen,Cao Junyu,Chen Jian,Yu Yang,Wu Peiheng.Observation of Resonant Tunneling in a Superconducting Flux Qubit[J].Rare Metal Materials and Engineering,2008(Z4). |
| |
| Authors: | Cong Shanhua Sun Guozhu Wang Yiwen Cao Junyu Chen Jian Yu Yang Wu Peiheng |
| |
| Affiliation: | Cong Shanhua,Sun Guozhu,Wang Yiwen,Cao Junyu,Chen Jian,Yu Yang,Wu Peiheng (Research Institute of Superconductor Electronics,Nanjing University,Nanjing,210093,China) |
| |
| Abstract: | The observation of resonant tunneling in a superconducting flux qubit by preparing initial states at low temperature about 20 mK is reported. The sample is made of Nb/AlOx/Nb Josephson junctions. That phenomenon is proved in different barriers. The dependence of the resonant tunneling (RT) peaks on the delay time is affected by the RT probability and the distribution probability. |
| |
| Keywords: | superconductiing flux qubit resonant tunneling SQUID |
| 本文献已被 CNKI 等数据库收录！ |
|
