Wednesday, January 19, 2011

First silicon entanglement will aid quantum computing - physics-math - 19 January 2011 - New Scientist

First silicon entanglement will aid quantum computing: John Morton of the University of Oxford and colleagues succeeded by using a half-millimetre-wide crystal of silicon studded with phosphorus atoms. Cooling this to a few degrees above absolute zero and applying a magnetic field aligned the spins of one phosphorus electron per atom.

They then applied two microwave pulses. One sent these electrons into a fuzzy quantum state, in which the spin of each electron had a 50-50 chance of being either up or down. The second forced the spin of each electron's nearest phosphorus nucleus to align with it, producing billions of pairs of entangled objects...

No comments:

Post a Comment