Hi, is anyone interested in testing a little idea I had?
I've now acquired some quantum sensors otherwise known as APDs, namely AD500-8 TO52S1 which avalanche at between 80 and 200V but for my purposes running them at 119V is better because the HV850 chips natively output +/-60V when running at a stable 4.2V
My idea is essentially to test entanglement over a large distance, for this purpose I've designed a prototype EPE device (entangled photon emitter) consisting of nonlinear crystals and some other off-the-shelf components including superconductors and large area red Phlatlight(tm) LED which when cooled with LN2 should emit a stream of entangled photons to my two spatially separated detectors.
According to the latest research in Nature the range of EP's in air is about 20km but obviously this depends on other factors such as atmospheric dust and water vapor.
So a test over a mere 5km should work fine if everything else is set up properly, also can compensate for radioactive triggering of the APDs using an event masker based on GM tubes.