How does 'Squeezed Vacuum' technology aid in the creation of quantum computing networks.....................

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Ok...so how does the technology quoted as being called 'Squeezed Vacuum' technology applied in this

 

http://www.sciencedaily.com/releases/2009/02/090203130708.htm

 

help provide a means for quantum computing.....................

 

How could a better vacuum make for better changes in chiral states and create say a quantum comparator?

I remember the first time I read that how crappy an article it was — it explains nothing about squeezed states or how the squeezed vacuum will improve the measurement.

 

 

Basically, squeezing refers to the Heisenberg Uncertainty principle, and by putting a lot of the uncertainty into one of the variables, the other variable has a small uncertainty — it has been "squeezed." e.g. you can get a very well-defined momentum state if you don't care where the particle is located. Almost all of the uncertainty is in the position, and almost none of it in the momentum.

 

What Hogan is apparently doing is "squeezing" the noise when no particles are present — the vacuum. Noise under certain conditions will be very small, so you can get a good measurement, because the noise in quadrature has become very large.

 

http://en.wikipedia.org/wiki/Squeezed_coherent_state#Examples_of_squeezed_coherent_states