FNL is here <http://www.worldscinet.com/fnl/fnl.shtml>, but the text of the cited 
issue hasn't shown up there yet.

Cheers,
RAH
-------

<http://www.technologyreview.com/articles/rnb_091103.asp>

Technology Review: 

Quantum Computing Has Limits 

Technology Research News šš September 11, 2003 

There are many long-term research efforts aimed at eventually producing a quantum 
computer, which would use the traits of atomic particles like electrons, photons and 
atoms to compute. 

Although it is extremely difficult to use such infinitesimally small parts, the weird 
quantum trait of entanglement would allow calculations to be carried out all at once 
on a series of numbers, making quantum computers fantastically fast. In theory, they 
could solve large problems that could never be solved by classical computers, 
including breaking all security codes. 

Quantum computers are not likely to ever replace classical computers for everyday use, 
however. 

Researchers from the University of Arkansas and Texas A&M University have shown that 
quantum computers, while theoretically useful for very large problems, are likely to 
always need very large amounts of power. 

According to their calculations, the statistical nature of quantum data, the practical 
requirements of inputting data into systems capable of carrying out entanglement, and 
the difficulty of error correction, or checking data, make quantum computers less 
efficient than classical computers for all but a few types of problems. 

The work appeared in the September, 2003 issue of Fluctuation and Noise Letters .

-- 
-----------------
R. A. Hettinga <mailto: [EMAIL PROTECTED]>
The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
44 Farquhar Street, Boston, MA 02131 USA
"... however it may deserve respect for its usefulness and antiquity,
[predicting the end of the world] has not been found agreeable to
experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'

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