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DOI | 10.1002/2016GL071767 |
Observation of the frozen charge of a Kondo resonance | |
Desjardins, M. M.1; Viennot, J. J.2,3; Dartiailh, M. C.1; Bruhat, L. E.1; Delbecq, M. R.4,7; Lee, M.5; Choi, M. -S.6; Cottet, A.1; Kontos, T.1 | |
2017-05-04 | |
发表期刊 | NATURE |
ISSN | 0028-0836 |
EISSN | 1476-4687 |
出版年 | 2017 |
卷号 | 545期号:7652页码:71-+ |
文章类型 | Article |
语种 | 英语 |
国家 | France; USA; Japan; South Korea |
英文摘要 | The ability to control electronic states at the nanoscale has contributed to our modern understanding of condensed matter. In particular, quantum dot circuits represent model systems for the study of strong electronic correlations, epitomized by the Kondo effect(1-3). We use circuit quantum electrodynamics architectures to study the internal degrees of freedom of this many-body phenomenon. Specifically, we couple a quantum dot to a highquality- factor microwave cavity to measure with exceptional sensitivity the dot's electronic compressibility, that is, its ability to accommodate charges. Because electronic compressibility corresponds solely to the charge response of the electronic system, it is not equivalent to the conductance, which generally involves other degrees of freedom such as spin. Here, by performing dual conductance and compressibility measurements in the Kondo regime, we uncover directly the charge dynamics of this peculiar mechanism of electron transfer. The Kondo resonance, visible in transport measurements, is found to be ` transparent' to microwave photons trapped in the high-quality cavity, thereby revealing that (in such a many-body resonance) finite conduction is achieved from a charge frozen by Coulomb interaction. This freezing of charge dynamics(4-6) is in contrast to the physics of a free electron gas. We anticipate that the tools of cavity quantum electrodynamics could be used in other types of mesoscopic circuits with many-body correlations7,8, providing a model system in which to perform quantum simulation of fermion-boson problems. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400480400032 |
WOS关键词 | NUMERICAL RENORMALIZATION-GROUP ; CARBON NANOTUBES ; TRANSPORT-COEFFICIENTS ; ANDERSON MODEL ; QUANTUM ; CAPACITANCE ; CIRCUIT ; SPIN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26930 |
专题 | 气候变化 |
作者单位 | 1.Univ Paris 06, Sorbonne Univ, Univ Paris Diderot Sorbonne Paris Cite, PSL Res Univ,CNRS,Ecole Normal Super,Lab Pierre A, 24 Rue Lhomond, F-75231 Paris 05, France; 2.Univ Colorado, JILA, Boulder, CO 80309 USA; 3.Univ Colorado, Dept Phys, Boulder, CO 80309 USA; 4.RIKEN, Ctr Emergent Matter Sci, 147 Main Bldg,2-1 Hirosawa, Wako, Saitama 3510198, Japan; 5.Kyung Hee Univ, Coll Appl Sci, Dept Appl Phys, 1732 Deogyeong Daero, Yongin 17104, Gyeonggi Do, South Korea; 6.Korea Univ, Dept Phys, 145 Anam Ro, Seoul 02841, South Korea; 7.PSL Res Univ, Coll France, USR CNRS 3573, JEIP, 11 Pl Marcelin Berthelot, F-75231 Paris 05, France |
推荐引用方式 GB/T 7714 | Desjardins, M. M.,Viennot, J. J.,Dartiailh, M. C.,et al. Observation of the frozen charge of a Kondo resonance[J]. NATURE,2017,545(7652):71-+. |
APA | Desjardins, M. M..,Viennot, J. J..,Dartiailh, M. C..,Bruhat, L. E..,Delbecq, M. R..,...&Kontos, T..(2017).Observation of the frozen charge of a Kondo resonance.NATURE,545(7652),71-+. |
MLA | Desjardins, M. M.,et al."Observation of the frozen charge of a Kondo resonance".NATURE 545.7652(2017):71-+. |
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