Electric field control and optical signature of entanglement in quantum dot molecules

Abstract

The degree of entanglement of an electron with a hole in a vertically coupled self-assembled dot molecule is shown to be tunable by an external electric field. Using atomistic pseudopotential calculations followed by a configuration interaction many-body treatment of correlations, we calculate the electronic states, degree of entanglement and optical absorption. We offer a novel way to spectroscopically detect the magnitude of electric field needed to maximize the entanglement.

4 pages, 6 figures

References in corpus (2)

• Direct Observation of Controlled Coupling in an Individual Quantum Dot Molecule
• Theory of excitonic spectra and entanglement engineering in dot molecules

Cited by in corpus (8)

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• Gate control of a quantum dot single-electron spin in realistic confining potentials: anisotropy effects
• Carrier-carrier entanglement and transport resonances in semiconductor quantum dots
• Understanding electric field control of electronic and optical properties of strongly-coupled multi-layer quantum dot molecules
• Entanglement Dynamics of Molecular Exciton States in Coupled Quantum Dots
• Excitonic entanglement of protected states in quantum dot molecules
• Fine-structure splitting of exciton states in quantum dot molecules: symmetry and tunnel-coupling effects