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Published on: October 13, 2017
Hyperentanglement source by intersubband two-photon emission from semiconductor quantum wells
Alex Hayat1, Pavel Ginzburg, David Neiman
1Department of Electrical Engineering, Technion, Haifa, Israel. ahayat@tx.technion.ac.il
Abstract:
We propose an efficient hyperentanglement source emitting photon pairs entangled in both energy and polarization. The compact electrically driven room-temperature source, based on intersubband two-photon emission from semiconductor quantum wells (QWs) exhibits pair generation rates several orders of magnitude higher than alternative conventional schemes. A theoretical formalism is derived for the calculation of photon pair generation spectra and rates. The results are presented for superlattice structures similar to quantum cascade lasers of GaAs/AlGaAs QWs emitting in the mid-IR and far-IR and for InN/AlN QW structures suitable for telecommunication wavelengths.
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