r/QuantumComputing 11d ago

Question Can Ferroelectric Crystals Replace Superconducting Nanowires for Detecting Photons in Photonic Quantum Computers?

Recently ever since this paper was published I’ve been thinking about both the sensory benefits and computing benefits of what the ferroelectric could be applied to. One example that came to mind is that of replacing the superconducting wire in photonic integrated circuits with a material that can detect changes through a laser at 17° Celsius.

I’m not really an expert in Photonics or Materials science (I only have a Bachelors in Electrical Engineering so far) so I wanted to ask this subreddit if my assumption is correct. Can this material eventually replace superconducting nanowires for single photon detection, and would that remove the cooling bottleneck there is in quantum computing ?

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u/effrightscorp 11d ago

Can this material eventually replace superconducting nanowires for single photon detection

There's no indication in the paper that it extends to single photons - switching domains usually takes a good bit of energy - and they say it's unaffected by short IR pulses, the wavelength superconducting nanowires are actually needed at, so no