[FRIAM] Quantum Theory Rebuilt From Simple Physical Principles | Quanta Magazine

[Owen Densmore]

Stephen will like this:

Some researchers suspect that ultimately the axioms of a quantum
reconstruction will be about information: what can and can’t be done with
it. One such derivation of quantum theory based on axioms about information
was proposed in 2010 by Chiribella, then working at the Perimeter
Institute, and his collaborators Giacomo Mauro D’Ariano and Paolo Perinotti
of the University of Pavia in Italy. “Loosely speaking,” explained Jacques
Pienaar, a theoretical physicist at the University of Vienna, “their
principles state that information should be localized in space and time,
that systems should be able to encode information about each other, and
that every process should in principle be reversible, so that information
is conserved.” (In irreversible processes, by contrast, information is
typically lost — just as it is when you erase a file on your hard drive.)


On Thu, Aug 31, 2017 at 10:32 AM, Owen Densmore <owen at backspaces.net> wrote:

> This is kinda interesting:
> ​  ​
> https://www.quantamagazine.org/quantum-theory-rebuilt-
> from-simple-physical-principles-20170830/
>
> ​Basically look at it like this:
> - Relativity: Is founded on a few simple physical principles ​like the
> limit on the speed of light.
> - Quantum Theory: Is founded on equations that match observation.
>
> Both make sense. But QT hasn't that satisfying basis that relativity has.
>
> Apparently a bunch of folks are trying to fix that.
>
>    -- Owen
>
>
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