[Cryptography] Fwd: Re: Post Quantum Crypto

Perry E. Metzger perry at piermont.com
Mon Nov 16 10:39:07 EST 2015


On Mon, 16 Nov 2015 07:58:09 +0000 Viktor Dukhovni
<cryptography at dukhovni.org> wrote:
> On Sun, Nov 15, 2015 at 11:52:42AM -0800, Christian Huitema wrote:
> > On the other hand, a breakthrough in theoretical physics would
> > probably be rapidly followed by similar breakthroughs in the art
> > of computing. But then, physicists have been trying to reconcile
> > quantum mechanics and relativity for a long time, so we have to
> > believe that the breakthrough will not happen tomorrow.
> 
> It rather seems you're just making this part up.

The second statement is true if one qualifies that as *General*
relativity rather than just relativity. Special relativity and QM were
reconciled long ago.

However, I think few (if any) researchers believe that there is any
real relevance of GR to quantum computing, at least not in the sense
of building practical quantum computers.

Regardless, I have to agree with a wider point Viktor made: there are
no breakthroughs in theoretical physics needed to make quantum
computers possible. The only issues are very practical engineering
problems, some of which are quite difficult of course.

Perry
-- 
Perry E. Metzger		perry at piermont.com


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