Energy-tunable sources of entangled photons

A viable concept for solid-state-based quantum relays

Rinaldo Trotta, Javier Martín-Sánchez, I. Daruka, Carmine Ortix, Armando Rastelli

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

We propose a new method of generating triggered entangled photon pairs with wavelength on demand. The method uses a microstructured semiconductor-piezoelectric device capable of dynamically reshaping the electronic properties of self-assembled quantum dots (QDs) via anisotropic strain engineering. Theoretical models based on k·p theory in combination with finite-element calculations show that the energy of the polarization-entangled photons emitted by QDs can be tuned in a range larger than 100 meV without affecting the degree of entanglement of the quantum source. These results pave the way towards the deterministic implementation of QD entanglement resources in all-electrically-controlled solid-state-based quantum relays.

Original languageEnglish
Article number150502
JournalPhysical Review Letters
Volume114
Issue number15
DOIs
Publication statusPublished - Apr 15 2015

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relay
quantum dots
solid state
photons
energy
resources
engineering
polarization
electronics
wavelengths

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Energy-tunable sources of entangled photons : A viable concept for solid-state-based quantum relays. / Trotta, Rinaldo; Martín-Sánchez, Javier; Daruka, I.; Ortix, Carmine; Rastelli, Armando.

In: Physical Review Letters, Vol. 114, No. 15, 150502, 15.04.2015.

Research output: Contribution to journalArticle

Trotta, Rinaldo ; Martín-Sánchez, Javier ; Daruka, I. ; Ortix, Carmine ; Rastelli, Armando. / Energy-tunable sources of entangled photons : A viable concept for solid-state-based quantum relays. In: Physical Review Letters. 2015 ; Vol. 114, No. 15.
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