Sending a message through quantum entanglement, the question of PURSUE Release 06 record DOW-UAP-D133, The Space-Communication Implications of Quantum Entanglement and Nonlocality, a Defense Intelligence Reference Document of 30 March 2010 (DIRDs).
The paper frames the problem as light time: up to 20 minutes to Mars and hours to Neptune, which makes real-time control of remote space devices impossible. It argues that at least some published no-signal proofs are tautological, leaving the possibility open to experiment, and proposes a coincidence-free version of the 1995 Ghost Interference experiment in which switching a fibre route would change the pattern on a camera and so send a 0 or a 1. It then assumes such signalling possible and follows it into a direct violation of causality, a message received 40 microseconds before it was sent, and to real-time control of a Mars rover by a signal sent back up the time stream. A second route, through nonlinear quantum mechanics, it says appears to be blocked in weak gravity. Its Conclusion calls the question experimental and ends: We await the outcome of such tests.
It sits in the release beside two other papers that design no vehicle, material or energy source: a statistical recasting of the Drake Equation and a typology of Maverick Inventors.