Imagine that you are a photon, a lighting package. You are a small burst of energy, penetrating into a universe. But you have a twin, another photon that has been closely connected since birth. No matter the distance between you, whether the width of a laboratory table or the width of the universe, you think. Everything that happens to your sister instantly affects you, and vice versa. You are like brothers and sisters of the mouse in “An American Tail”, torn by fate, but feel the same feelings and sing the same song on the same moon that glows.
It is a quantum entanglement. For non-physicists, this seems to be as fantastic as the mouse chanting, and in fact, many physicists have problems with the phenomenon. Albert Einstein, whose research helped give birth to quantum theory, ironically called the concept of a “distant action of fear.” Quantum entanglement seems to break some of the basic rules of standard physics that nothing can travel faster than light, objects are not influenced by their immediate environment. And scientists still can not explain how particles are related. Are there wormholes? An unknown dimension? The power of love? (This is a joke).
Fortunately for quantum physicists, it is not always necessary to explain a phenomenon to use. The ancient human conscious of friction before inventing the wheel; Medieval Chinese doctors did not know the antibody when people started inoculating smallpox 600 years ago. Do not know what is behind quantum entanglement has not prevented Jian-Wei Pan, a physicist from the China University of Science and Technology in Shanghai, the float in space.
In a new study published in the journal Science, Pan and his colleagues report that they were able to produce entangled photons in a satellite in orbit 300 miles above the planet and transmit particles in two different ground laboratories were 750 miles apart, all of which Without losing the strange union of particles. This is the first time that someone has already generated particles entangled in space and an increase of 10 times the distance over which the entanglement has been maintained.
“This is a truly amazing achievement, and I think it will be the first attractive and interesting studies that this particular satellite will open,” said Shohini Ghose, a physicist at Wilfrid Laurier University in Canada. “Who knows, maybe there will be a tangle of race?”
There is a good reason why governments around the world could soon try to test quantum theory in orbit, and it is not just so that they can claim the title “creepy.” Interlaced particles could be used one day by “quantum communication” – a way to send large secure messages that do not rely on cable, wireless signal or code. Due to interference with a tangled particle, even the simple act of observing, automatically assigns its partner, these letters can not be pirated. To listen to quantum physics, interlaced particles could help build a “quantum Internet”, giving rise to new types of coding and enabling faster communication than light – opportunities that have a strong appeal at a time in hospitals, companies Credit card, government agencies, even electoral systems are victims of cyber attacks.