أُجريت الدراسة للتأثير الأحرانوف-بوم الجزئي (FABO) لحلقات كمونية ضيقة مع إثنين من الإلكترونات، وشرحت بطريقة تحليلية، وقد وصلت التطورات للفترة والأمواج ضد المجال المغناطيسي تكون مصطلحة تماما. بالإضافة إلى ذلك، وجد أن الانتقال الديبولي للحالة الأرضية كان له أساسا فوقتين، وتظهر فرقهما كتأثير تتأثر فيه تماما مع تأثير التيار المستمر. وجدت عدد من المساويات تربط المقاييس الملاحظة والمعلمات الديناميكية.
The fractional Aharonov-Bohm oscillation (FABO) of narrow quantum rings with two electrons has been studied and has been explained in an analytical way, the evolution of the period and amplitudes against the magnetic field can be exactly described. Furthermore, the dipole transition of the ground state was found to have essentially two frequencies, their difference appears as an oscillation matching the oscillation of the persistent current exactly. A number of equalities relating the observables and dynamical parameters have been found.
The low-lying spectrum of a 3-electron narrow ring has been analyzed analytically. A phase-diagram for the ground state band against the magnetic field and the radius of the ring is obtained. The symmetry background of the fractional Aharonov-Bohm os
We have measured the persistent current in individual normal metal rings over a wide range of magnetic fields. From this data, we extract the first six cumulants of the single-ring persistent current distribution. Our results are consistent with the
We report measurements of the spin susceptibility in dilute two-dimensional electrons confined to a 45$AA$ wide AlAs quantum well. The electrons in this well occupy an out-of-plane conduction-band valley, rendering a system similar to two-dimensional
We theoretically study a current switch that exploits the phase acquired by a charge carrier as it tunnels through a potential barrier in graphene. The system acts as an interferometer based on an armchair graphene quantum ring, where the phase diffe
We study theoretically the contribution of fluctuating Cooper pairs to the persistent current in superconducting rings threaded by a magnetic flux. For sufficiently small rings, in which the coherence length $xi$ exceeds the radius $R$, mean field th