| Topic: |
Science > Physics |
| User: |
"Jack Sarfatti" |
| Date: |
29 Sep 2005 09:32:16 PM |
| Object: |
No-cloning theorem a Red Herring? |
The no-cloning theorem is misleading. I mean, yes you cannot clone
arbitrary quantum states perfectly, but you can clone arbitrary quantum
states approximately with good enough overlap fidelity among the clones.
This opens the door to presponse signal nonlocality. Gaussian continuous
variable states in particular can be effectively cloned. It may mean an
error in the Susskind-Hawking ideas about information recovery from
evaporating black holes that depends upon naive use of the no-cloning
theorem.
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| User: "hanson" |
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| Title: Re: No-cloning theorem a Red Herring? |
29 Sep 2005 09:50:11 PM |
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"Jack Sarfatti" <sarfatti@pacbell.net> wrote in message
news:Qs1%e.1847$rl1.1339@newssvr27.news.prodigy.net...
The no-cloning theorem is misleading. I mean, yes you cannot clone arbitrary
quantum states perfectly, but you can clone arbitrary quantum states
approximately with good enough overlap fidelity among the clones. This opens
the door to presponse signal nonlocality. Gaussian continuous variable states
in particular can be effectively cloned. It may mean an error in the
Susskind-Hawking ideas about information recovery from evaporating black holes
that depends upon naive use of the no-cloning theorem.
Jack, why do you have to make everything, even this one,
more complicated than it already is?... ahahaha... ahahanson
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