Investigations of emergent symmetry breaking phenomena occurring in small finite-size
systems are reviewed, with a focus on the strongly correlated regime of electrons in two …

The review considers the peculiarities of symmetry breaking and symmetry transformations
and the related physical effects in finite quantum systems. Some types of symmetry in finite …

We present a new high performance configuration interaction code optimally designed for
the calculation of the lowest-energy eigenstates of a few electrons in semiconductor …

This book is devoted to the description of Bosonic and Fermionic systems: metallic clusters;
quantum dots, wires, rings and molecules; trapped Fermi and Bose atoms; liquid drops of …

Few-electron eigenstates confined in coupled concentric double quantum rings are studied
by the exact diagonalization technique. We show that the magnetic field suppresses the …

We study the binding energy and diamagnetic susceptibility of a donor impurity in multi-well
cylindrical and spherical quantum dot systems with triangular, rectangular, saw-tooth and …

We show that systematic full configuration-interaction (FCI) calculations enable prediction of
the energy spectra and the intrinsic spatial and spin structures of the many-body wave …

The few-body problem for N= 4 fermionic charge carriers in a double-well moiré quantum
dot (MQD), representing the first step in a bottom-up strategy to investigate formation of …

The few-body problem (with N≤ 6 fermionic charge carriers) in isolated moiré quantum dots
(MQDs) in transition metal dichalcogenide (TMD) bilayer materials with integer fillings, ν≥ 2 …

The spectral properties of electrons confined in a wirelike quasi-one-dimensional (1D)
elongated quantum dot coupler between silicon qubits are investigated with a valley …