On-demand source of maximally entangled photon-pairs using the biexciton-exciton radiative cascade

Abstract

We perform full time resolved tomographic measurements of the polarization state of pairs of photons emitted during the radiative cascade of the confined biexciton in a semiconductor quantum dot. The biexciton was deterministically initiated using a $\pi$-area pulse into the biexciton two-photon absorption resonance. Our measurements demonstrate that the polarization states of the emitted photon pair are maximally entangled. We show that the measured degree of entanglement depends solely on the temporal resolution by which the time difference between the emissions of the photon pair is determined. A route for fabricating an on demand source of maximally polarization entangled photon pairs is thereby provided.

References in corpus (19)

• Separability Criterion for Density Matrices
• On the Measurement of Qubits
• Entangled Photon Pairs from Semiconductor Quantum Dots
• On-demand generation of indistinguishable polarization-entangled photon pairs
• Improved fidelity of triggered entangled photons from single quantum dots
• Observation of strongly entangled photon pairs from a nanowire quantum dot
• Electric-field-induced coherent coupling of the exciton states in a single quantum dot
• Magnetic-field-induced reduction of the exciton polarization splitting in InAs quantum dots
• Inversion of exciton level splitting in quantum dots
• Deterministic Photon Pairs via Coherent Optical Control of a Single Quantum Dot
• Evolution of entanglement within classical light states
• Strain-tunable entangled-light-emitting diodes with high yield and fast operation speed
• Shaping the Phase of a Single Photon
• Phonon-assisted robust and deterministic two-photon biexciton preparation in a quantum dot
• Optically induced rotation of a quantum dot exciton spin
• Coherent optical writing and reading of the exciton spin state in single quantum dots
• Determinstic Generation of a Quantum Dot-Confined Triexciton and its Radiative Decay via Three-Photon Cascade
• All-Optical Depletion of Dark Excitons from a Semiconductor Quantum Dot
• Photon Frequency Mode Matching using Acousto-Optic Frequency Beam Splitters

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• Time-dependent switching of the photon entanglement type using a driven quantum emitter-cavity system
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• Self-aligned pillar arrays embedding site-controlled single quantum dots for enhanced non-classical light emission
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