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de_la_rosa
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re: Princeton researchers claim breakthrough on path to quantum computing
de_la_rosa   10/22/2012 10:30:41 PM
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this sounds like a headache.

ReneCardenas
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re: Princeton researchers claim breakthrough on path to quantum computing
ReneCardenas   10/22/2012 9:45:11 PM
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Resistion, I agree with your comment. A lab setting is one thing, but to scale up, it would imply that the system would have to spend large amonunt of resources to limit other sources of influence (NOISE). So from the start this new computing method is doomed. It is tough enough to control electrical domain, now add to the mix magnetic, radiation sources, gavity (?), etc...

resistion
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re: Princeton researchers claim breakthrough on path to quantum computing
resistion   10/22/2012 4:54:07 AM
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"One challenge facing scientists is that the spins of electrons, or any other quantum particles, are incredibly delicate. Any outside influences, whether a wisp of magnetism or glimpse of light, destabilizes the electrons' spins and introduces errors." Shielding from noise sources is going to be a toughie.

Sam Beal
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re: Princeton researchers claim breakthrough on path to quantum computing
Sam Beal   10/21/2012 12:53:56 AM
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scaling is the key question. Not clear what the temp requirement is but near zero won't scale.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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