Energy-tunable sources of entangled photons: a viable concept for solid-state-based quantum relays
arXiv:1412.5954 · doi:10.1103/PhysRevLett.114.150502
Abstract
We propose a new method of generating triggered entangled photon pairs with wavelength on demand. The method uses a micro-structured semiconductor-piezoelectric device capable of dynamically reshaping the electronic properties of self-assembled quantum dots (QDs) via anisotropic strain-engineering. Theoretical models based on kp 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.
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- Quantum key distribution with entangled photons generated on-demand by a quantum dot
- Solutions to the generalized Eshelby conjecture for anisotropic media: Proofs of the weak version and counter-examples to the high-order and the strong versions
- GaAs quantum dots under quasi-uniaxial stress: experiment and theory
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- Counter-examples to the high-order version and strong version of the generalized Eshelby conjecture for anisotropic media