Thanks for these posts which I have found inspiring. On the microwave power front I calculate that for a cavity magnetron transmitting at a wavelength of 1 x 10**-3 m to achieve a photon rate as low as 1000 photons per second a power of 2 x 10**-24 watts would be required. It would be difficult to envisage a system where this would not be swamped by noise. I chose 1000 photons per second as rate that one might expect to be detectable. This supports AJB's post.
I believe all electromagnetic radiation is comprised of photons.
Is there any experimental evidence that radio transmitters emit photons rather than continuous em waves?
We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.