quantum chip built

[Mads Rasmussen]

Steven M. Bellovin wrote:

>http://www.wired.com/news/technology/0%2c70001-0.html?tw=wn_tophead_5
>  

They seems to have built a device which can store one qubit, isolated 
from the rest of the world. They seem to be able to scale up their 
technique to store many qubits, but I strongly suspect that they cannot 
store those many qubits COHERENTLY. To store reliably individual qubits 
is not that difficult, but to prevent entangled systems from interacting 
with the environment is very, very difficult.

Maybe someone else can give more information?

-- 
Mads Rasmussen		
LEA - Laboratório de Ensaios e Auditoria	
(Cryptographic Certification Laboratory)
Office: +55 11 4208 3873 
Mobile: +55 11 9655 8885			Skype: mads_work
http://www.lea.gov.br	




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