Shallow donor impurities in silicon, once frozen out at low temperature, share many properties in common with free hydrogen atoms, with a single electron orbiting a singly positively charged ion core. Phosphorus donors in silicon show extremely long spin relaxation lifetimes making them very attractive for encoding quantum information, and the orbitals are very large, suggesting good prospects...
The electron-hole bound states (excitons) in the semiconductor quantum wells (QW) are remarkable examples of Coulomb systems, in which the external potential of the heterostructure plays a role of the third particle, thus making such a system to be a three-body one. The exciton states and the exciton-light coupling in heterostructures with QWs have been experimentally and theoretically studied...
In latest years, there have been a promptly increasing number of experimental and theoretical publications focusing on transition metal dichalcogenides (TMD) crystals. Quantum dots TMD have the potential to combine the essential features of both optically active and electrically defined quantum dots. Strong electron–hole binding in TMDs suggests that it would be possible to obtain a discrete...
By considering symmetric and asymmetric dipolar coupled mixtures (with dysprosium, erbium and rubidium isotopes), we reporta study on relevant anisotropic effects, related to spatial separation and miscibility, due to dipole-dipole interactions (DDI) in rotating binary dipolar mixtures Bose-Einstein condensates [1].
The binary mixtures are kept in strong pancake-shaped trap, with repulsive...