Wavelength is as good for encoding. Current communications using fiber optics do something like that. The hyper-entangled photons trick was to transmit almost 2 bits by encoding on a binary property of one of the photons... which classically can only encode one bit.
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Wavelength is as good for encoding. Current communications using fiber optics do something like that. The hyper-entangled photons trick was to transmit almost 2 bits by encoding on a binary property of one of the photons... which classically can only encode one bit.
Satellites already communicate with each other. Ah! I get it, you don't have a satellite... sorry to hear that.
They didn't just change the polarisation (polarity). A qubit can be more than just reversed, you can change the phase between the two "polarities".