homehome Home chatchat Notifications


Quantum leap: bits of light successfully teleported

The world we live in is getting closer and closer to Star Trek everyday. Scientists announced today they were able to teleport special bits of light from one place to another. While this doesn’t mean that we will be (ever) able to teleport people, it involves some pretty awesome mind bending physics. Teleportation relies on […]

Mihai Andrei
April 15, 2011 @ 4:45 pm

share Share

The world we live in is getting closer and closer to Star Trek everyday. Scientists announced today they were able to teleport special bits of light from one place to another. While this doesn’t mean that we will be (ever) able to teleport people, it involves some pretty awesome mind bending physics.

Teleportation relies on a special quantum property called entanglement, about which I told you about in an article about quantum computers. Basically, two particles can be bonded so that even though there is a large distance between them, they are able to communicate directly, and what happens to one affects the other. This property was so bizarre that it fascinated even Einstein, who named it “spooky action at distance”.

To teleport light, researchers led by Noriyuki Lee of the University of Tokyo had to destroy it in one place, and re-create it in another. This actually isn’t the first time light has been teleported in this way, but this time it’s much more complicated because the teleported light wasn’t just light, it was a special quantum state called a Schrödinger’s-cat state. Schrödinger’s cat refers to a thought experiment, that suggests that some properties of particles are not decided until an observer decides to measure them. Kind of hits your brain, but that’s pretty much how quantum mechanics works.

Even though this represents a major breakthrough in teleporting, it is extremely unlikely we will be dealing with teleporting of any life forms in the next decades.

“There is not at present a way to teleport even a bacteria,” said Philippe Grangier, of France’s Institut d’Optique, who was not involved in the new research, but who wrote an accompanying essay on the finding in the same issue of Science . “For a real cat I don’t think this will be possible in any possible future.”

share Share

After 100 years, physicists still don't agree what quantum physics actually means

Does God play dice with the universe? Well, depends who you ask.

Physicists Make First Qubit out of Antimatter and It Could One Day Explain Why the Universe Exists At All

Antimatter was held in a qubit state for nearly a minute.

Scientists Superheated Gold to 14 Times Its Melting Point and It Remained Solid

No laws of physics were harmed in this process.

This Startup Claims It Can Turn Mercury Into Gold Using Fusion Energy and Scientists Are Intrigued

The age-old alchemist's dream may find new life in the heart of a fusion reactor.

Our Radar Systems Have Accidentally Turned Earth into a Giant Space Beacon for the Last 75 Years and Scientists Say Aliens Could Be Listening

If aliens have a radio telescope, they already know we exist.

Mesmerizing Fluid “Fireworks” Reveal Clues for Trapping Carbon Underground

Simulations show stunning patterns that could shape future carbon capture strategies.

Cycling Is Four Times More Efficient Than Walking. A Biomechanics Expert Explains Why

The answer lies in the elegant biomechanics of how our bodies interact with this wonderfully simple machine.

What Happens When You Throw a Paper Plane From Space? These Physicists Found Out

A simulated A4 paper plane takes a death dive from the ISS for science.

Scientists Found a Way to Turn Falling Rainwater Into Renewable Energy

It looks like plumbing but acts like a battery.

Scientists Are Building a Quantum Computer With Chips Made out of Glass

European researchers are developing quantum computers using light and glass, in a collaboration that promises breakthroughs in computing power, battery technology and scientific discovery.