3.6k citations
- The University of TokyoJP46 papers
- Japan Science and Technology AgencyJP38 papers
- RIKENJP37 papers
- National Institute of Advanced Industrial Science and TechnologyJP18 papers
- RIKEN Center for Emergent Matter ScienceJP18 papers
- Massachusetts Institute of TechnologyUS17 papers
- Tokyo Institute of TechnologyJP17 papers
- Tohoku UniversityJP16 papers
- RIKEN Advanced Science InstituteJP13 papers
- NEC (United States)US12 papers
- MIT Lincoln LaboratoryUS11 papers
- Tokyo Medical and Dental UniversityJP11 papers
5 papers · 2 filters
Quantum oscillations in two coupled charge qubits
Yu. A. Pashkin, T. Yamamoto, O. Astafiev +3
Despite an apparent progress in implementing individual solid-state qubits, there have been no experimental reports so far on multi-bit gates required for building a real quantum c…
Local moment formation in quantum point contacts
Kenji Hirose, Yigal Meir, Ned S. Wingreen
Spin-density-functional theory of quantum point contacts (QPCs) reveals the formation of a local moment with a net of one electron spin in the vicinity of the point contact - suppo…
Kondo model for the "0.7 anomaly" in transport through a quantum point contact
Yigal Meir, Kenji Hirose, Ned S. Wingreen
Experiments on quantum point contacts have highlighted an anomalous conductance plateau at , with features suggestive of the Kondo effect. Here we present an Anderson…
Ground-state energy and spin in disordered quantum dots
Kenji Hirose, Ned S. Wingreen
We investigate the ground-state energy and spin of disordered quantum dots using spin-density-functional theory. Fluctuations of addition energies (Coulomb-blockade peak spacings)…
The Low-Temperature Fate of the 0.7 Structure in a Point Contact: A Kondo-like Correlated State in an Open System
S. M. Cronenwett, H. J. Lynch, D. Goldhaber-Gordon +5
Besides the usual conductance plateaus at multiples of 2e2/h, quantum point contacts typically show an extra plateau at ~ 0.7(2e2/h), believed to arise from electron-electron inter…