Yshai Avishai

Tunneling through triple quantum dots with mirror symmetry

Indirect exchange interactions between itinerant electrons and nanostructures with nontrivial geometrical configurations manifest a plethora of unexpected results. These configurations can be realized either in quantum dots with several potential valleys or in real complex molecules with strong correlations. Here we demonstrate that the Kondo effect may be suppressed under certain conditions in triple quantum dots with mirror symmetry at odd electron occupation. First, we show that the indirect exchange has a ferromagnetic sign in the ground state of triple quantum dots in a two-terminal cross geometry for electron occupation

Model for overscreened Kondo effect in ultracold Fermi gas

N=3

Dynamical scaling analysis of the optical Hall conductivity in the quantum Hall regime

. Second, we show that for electron occupation

Magnetization of two coupled rings

N=1

Anti-levitation in integer quantum Hall systems

in three-terminal fork geometry the zero-bias anomaly in the tunnel conductance is absent (despite the presence of Kondo screening) due to the special symmetry of the dot wave function.

Absence of localization in disordered two-dimensional electron gas at weak magnetic field and strong spin-orbit coupling.

The feasibility of realizing overscreened Kondo effect in ultra-cold Fermi gas of atoms with spin

Charge and current oscillations in fractional quantum Hall systems with edges

s \ge \tfrac{3}{2}

Localization problem of a two-dimensional lattice in a random magnetic field

in the presence of a localized magnetic impurity atom is proved realistic. Specifying to a system of ultra cold

Persistent currents and edge states in a magnetic field.

^{22}

In-gap bound states induced by nonmagnetic impurities in two-band s ± superconductors

Na Fermi gas and a trapped