Any time someone appeals to quantum physics to offer a handwaving explanation of something that classical physics covers just fine, watch out. Using path integ

Any time someone appeals to quantum physics to offer a handwaving explanation of something that classical physics covers just fine, watch out. Using path integrals to introduce interferometry is a waste of time, and in this case, just plain wrong. For a better source, I'd start with the wikipedia articles on beamforming, phased arrays, and interferometry (http://en.wikipedia.org/wiki/Beamforming http://en.wikipedia.org/wiki/Beamforming, http://en.wikipedia.org/wiki/Phased_array http://en.wikipedia.org/wiki/Phased_array, http://en.wikipedia.org/wiki/Interferometry http://en.wikipedia.org/wiki/Interferometry).