5 papers
Breakdown of `phase rigidity' and variations of the Fano effect in closed Aharonov-Bohm interferometers
Amnon Aharony, Ora Entin-Wohlman, Tomohiro Otsuka +3
Although the conductance of a closed Aharonov-Bohm interferometer, with a quantum dot on one branch, obeys the Onsager symmetry under magnetic field reversal, it needs not be a per…
Observation of the Fano-Kondo Anti-Resonance in a Quantum Wire with a Side-Coupled Quantum Dot
Masahiro Sato, Hisashi Aikawa, Kensuke Kobayashi +2
We have observed the Fano-Kondo anti-resonance in a quantum wire with a side-coupled quantum dot. In a weak coupling regime, dips due to the Fano effect appeared. As the coupling s…
Interference Effect in Multi-level Transport through a Quantum Dot
Hisashi Aikawa, Kensuke Kobayashi, Akira Sano +2
We present experimental results and a model to solve the problem of "in-phase Coulomb peaks" observed in transport through a quantum dot. In a marginal region between Coulomb-block…
Fano Resonance in a Quantum Wire with a Side-coupled Quantum Dot
Kensuke Kobayashi, Hisashi Aikawa, Akira Sano +2
We report a transport experiment on the Fano effect in a quantum connecting wire (QW) with a side-coupled quantum dot (QD). The Fano resonance occurs between the QD and the "T-shap…
Observation of "Partial Coherence" in an Aharonov-Bohm Interferometer with a Quantum Dot
Hisashi Aikawa, Kensuke Kobayashi, Akira Sano +2
We report experiments on the interference through spin states of electrons in a quantum dot (QD) embedded in an Aharonov-Bohm (AB) interferometer. We have picked up a spin-pair sta…