This may seem like a lot of work to pass along one measly piece of information, but quantum teleportation enables completely secure communication. I can also control robotics and people some times.. The resulting sequence of bits is the message. To send a message to Bob, Alice communicates which bits in the key Bob should flip. For some ways in which entanglement may be achieved for experimental purposes, see the section below on methods. This information can be processed and communicated but, because of the peculiarities of quantum measurement, at most one bit can be accessed. As mentioned above, a state of a quantum system is given by a unit vector in a Hilbert space. Jesse likes to stay active and holds a fourth degree black belt in Karate, which just means he now knows how much he has to learn and the importance of good teaching. When two particles are entangled, the state of one is tied to the state of the other. General Relativity and Gravitation.