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I have a question. Doesn't observing some signal require interacting with it? And wouldn't most interaction sufficient to gain a high fidelity signal modify the

I have a question. Doesn't observing some signal require interacting with it? And wouldn't most interaction sufficient to gain a high fidelity signal modify the underlying particles in some way that might destroy the message? How, if we can retrieve the message in the beam with accuracy, do we not simultaneously gain the technology to disrupt the beam? Isn't jamming just loud and sophisticated form of communication? If we can communicate, how are we not simultaneously able to jam?

ars 3y ago
Neutrinos are directional. Any jamming would come from a different direction. The jammer can't match the direction - as the submarine moves the direction of the source changes in a predictable way, the jammer would change in a different way. Think of it as a tiny light bulb blinking as you walk in a circle around it. Doesn't matter where you put the jamming light bulb it won't be in the center of your circle like the source light bulb is.