Quantum particles may be exchanging secret messages

<p>Imagine that Alice is piloting a space ship light years away from Earth. Bob steers his space ship in the opposite direction, also light years away.</p> <p>Back on Earth, scientists prepare in a lab two particles from a single reaction, such as the decay of a pion. These particles are sent out into space, one towards Alice and the other towards Bob. The particles are traveling fast enough to overtake their ships and, years later, each receives their particle and measures it.</p> <p>If I were to draw a picture of what this looks like on paper, we might imagine a set of coordinates with space on the horizontal axis and time on the vertical. Each particle is a line traveling at an angle, say 45 degrees. In velocity units where the speed of light is c=1, a 45 degree angle means they are massless particles traveling at the speed of light in vacuum such as photons.</p> <p><a href="https://medium.com/the-infinite-universe/quantum-particles-may-be-exchanging-secret-messages-42411b9598f4"><strong>Visit Now</strong></a></p>