Eugenio Zallo

TL;DR: It is demonstrated experimentally and theoretically that it is always possible to restore the excitonic degeneracy by the simultaneous application of large strain and electric fields, and highlights the potential of combining complementary external fields to create artificial atoms meeting the stringent requirements posed by scalable semiconductor-based quantum technology.

TL;DR: This work introduces quantum dot-based sources of polarization-entangled photons whose energy can be tuned via three-directional strain engineering without degrading the degree of entanglement of the photon pairs.

TL;DR: Light-hole excitons were observed by applying elastic stress to initially unstrained gallium arsenide-based dots as mentioned in this paper, and the quasiparticles were identified by their optical emission signature.

TL;DR: Strain-tunable entangled-light-emitting-diodes that exploit piezoelectric-induced strains to tune quantum dots for entangled-photon generation emerge as promising devices for high data-rate quantum applications.

TL;DR: In this paper, the authors integrate resonant-cavity light-emitting diodes containing quantum dots onto substrates with giant piezoelectric response, and the energy of the photons emitted by the diode can be precisely controlled during electrical injection over a spectral range larger than 20 meV.