[19637] in cryptography@c2.net mail archive
Re: quantum chip built
daemon@ATHENA.MIT.EDU (Mads Rasmussen)
Tue Jan 17 10:16:28 2006
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Fri, 13 Jan 2006 14:18:51 -0200
From: Mads Rasmussen <mads@lsitec.org.br>
To: cryptography@metzdowd.com
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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