Brainy Quote of the Day

Tuesday, August 3, 2010

Quantum Memory

"Light is a useful carrier of quantum information, but no method yet exists for storing and retrieving it without significantly corrupting its quantum state. Now, Matthew Sellars (Australian National University, Canberra) and colleagues have taken a step closer to a useful quantum memory by mapping a light pulse’s state onto an ensemble of praseodymium ions doped into a transparent crystal."

See: Quantum Memory Takes a Leap Forward

This line from "Alice in Wonderland," seemed appropriate:

"'Curiouser and curiouser!' Cried Alice (she was so much surprised, that for the moment she quite forgot how to speak good English). 'Now I'm opening out like the largest telescope that ever was! Good-bye, feet!' (for when she looked down at her feet they seemed to be almost out of sight, they were getting so far off). 'Oh my poor little feet, I wonder who will put on your shoes and stockings for you now, dears? I'm sure I shan't be able! I shall be a great deal too far off to trouble myself about you: you must manage the best way you can--but I must be kind to them,' thought Alice, 'or perhaps they won't walk the way I want to go! Let me see. I'll give them a new pair of boots every Christmas.'

"And she went on planning to herself how she would manage it. 'They must go by the carrier,' she thought; and how funny it'll seem, sending presents to one's own feet! And how odd the directions will look!"

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