On 8/27/2019 11:34 PM, Philip Thrift wrote:
On Wednesday, August 28, 2019 at 12:21:12 AM UTC-5, Bruce wrote:
Maybe Neumaier is a good enough physicist not to let his
theological beliefs influence his physics. Don Page is another
such whose name springs to mind. Neumaier's rejection of the
reality of virtual particles and quantum foam is soundly based on
his good physics.
https://www.physicsforums.com/insights/interview-mathematician-physicist-arnold-neumaier/
He seems more of a dabbler in physics to me. He is primarily a
mathematician.
The problems that these additional elements in the traditional
interpretations are supposed to solve are sidestepped in the thermal
approach by realizing basic but previously overlooked facts: The first
is that we never ever measure directly something microscopic. Instead
we deduce the microscopic information indirectly from macroscopic
measurements together with some theory relating it to the microscopic
system of interest. The second fact is that a macroscopic observation
is simply the deterministic reading of an ensemble expectation value,
and not (as postulated in the conventional interpretations) an
intrinsically random event governed by Born’s probabilistic rule. Both
facts together eliminate the validity of all no-go theorems for a
realistic interpretation of quantum mechanics.
There's nothing new about an ensemble interpretation, but it is
effectively a hidden variable theory and so is non-local. That's why
it's not popular.
Brent
The thermal interpretation takes into account the approximate nature
of quantum objects. But is not yet sufficiently well developed to give
convincing answers to the unsolved questions mentioned above. The
latter would require explicit QFT models of the measurement situation
that can be solved in the customary approximations (including suitable
coarse graining and a thermodynamic limit). Their solution should lead
to the conventional quantum theory including Born’s rule where it applies.
@philipthrift
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