#qunatum

Quantum Computers Explained – Limits of Human Technology

A video you should watch to know how computers are approaching their size limits.

This is a Teleportation Device The setup Noriyuki Lee and colleagues used to teleport quantum light.

Researchers Succeed in Quantum Teleportation of Light Waves

Like Schroedinger's cat, teleported light is both dead and alive

In a real-life use of Schroedinger's (Schrodinger's) theoretical paradoxical cat, researchers report that they were able to quickly transfer a complex set of quantum information while preserving its integrity. The information, in the form of light, was manipulated in such a way that it existed in two states at the same time, and it was destroyed in one spot and recreated in another. The new breakthrough is a major step toward building safe, effective quantum computers.-PS

Popular Science: http://goo.gl/Pkcy8

>Schroedinger's Cat

A cat, along with a flask containing a poison and a radioactive source, is placed in a sealed box shielded against environmentally induced quantum decoherence. If an internal Geiger counter detects radiation, the flask is shattered, releasing the poison that kills the cat. The Copenhagen interpretation of quantum mechanics implies that after a while, the cat is simultaneously alive and dead. Yet, when we look in the box, we see the cat either alive or dead, not both alive and dead.-W