New prospect of Quantum Teleportation

Quantum Teleportation is a famous concept in the Star Trek fantasy series. Recently, however, theorists at the University of Quenland and the Australian National University have proposed an idea

Quantum teleportation

new to realize this interesting concept.

The team includes: Ashton Bradley, Simon Haine, Murray Olsen and Joseph Hope. They have come up with a new way to " teleport " physical waves. "Our method allows an atomic laser beam to disappear here and reappear elsewhere." Dr. Bradley said.

"The difference in our quantum shift method is that it does not require the sending and receiving systems to have the same entangled states, ie there is no need to perform measurements related to sending information. Instead That is, systems that send and receive are sources of cooled atoms to the Bose condensate -Einstein (BEC), " Dr. Haine said.

According to Haine, when sending a pulse of atoms into a BEC trap system and illuminating them with a controlled laser beam, the atoms of the pulse will be excited and behave like the atoms already inherited. trap in

Will these imaginary films like this come true through teleportation quantum?

BEC. This results in the emission of a photon. When the atoms in the BEC have a well-defined momentum, the photons are emitted in the same direction and form a beam of signals.

"With the control laser beam, we can arrange the coordinates and momentum of each atom (ie, placing quantum information) to encode them into the signal beam." Haine said. This beam is sent to a second BEC, also illuminated with a controlled laser. Atoms trapped in this BEC will absorb photons from the signal beam, and in turn are forced to emit photons. Due to the change in momentum when emitting photons, the atoms will be removed from the BEC. Thus the atoms carry quantum information in the original pulse that has been transferred to the new pulse, ie the "atomic" pulse of the original atom is effectively.

"Our method does not need to be based on the subtle qualities of quantum entanglement, so it can achieve a more efficient movement." Bradley said. Bradley's group is still developing the theory with more detailed calculations, taking into account complex effects when atoms collide with each other.

According to University of Queensland, Australia, Vietnam Physics