Quantum communication protocols using the vacuum
arXiv:quant-ph/0302091
Abstract
We speculate what quantum information protocols can be implemented between two accelerating observers using the vacuum. Whether it is in principle possible or not to implement a protocol depends on whether the aim is to end up with classical information or quantum information. Thus, unconditionally secure coin flipping seems possible but not teleportation.
5 pages, 1 figure (upside-down). Speculative; comments are welcome