On 11/20/2019 11:26 PM, Philip Thrift wrote:
On Wednesday, November 20, 2019 at 3:00:25 PM UTC-6, Brent wrote:
On 11/20/2019 11:49 AM, Philip Thrift wrote:
On Wednesday, November 20, 2019 at 12:59:32 PM UTC-6, Brent wrote:
On 11/19/2019 11:41 PM, Philip Thrift wrote:
On Tuesday, November 19, 2019 at 3:59:47 PM UTC-6, Brent wrote:
On 11/19/2019 1:43 PM, Philip Thrift wrote:
A diffraction pattern emerges in video recordings of
single-photon double-slit experiments whether anyone
sees the video or not. what changes is the image on the
video frame-by-frame. If you take a video of a an arrow
shot from a bow, it follows a parabolic curve, and what
changes is its position frame-by-frame.
So when your path integral formulation predicts various
probabilities for position of photon absorptions by the
video camera nothing has changed when positions are
actualized in the recording. All the same probabilities
obtain. Which is the MWI view.
Brent
In the cases of *Quantum Measure Theory* (Rafael Sorkin),
*Real Path Quantum Theory* (Adrain Kent), or -- in another
type of formulation -- *Cellular Automaton Interpretation*
[of Quantum Mechanics] (Gerard 't Hooft), I don't see what
"change" means in your terms.
Those methods assign probabilities (measures) to specific
possible outcomes (measurements). When one is observed, it
is used as an initial condition for further predictions. If
it's not observed then further predictions are conditioned on
all the possible outcomes. That's a change.
Brent
Except in the theories -- QMT, RPQT -- themselves, nothing is
observed (or needs to be observed), because /there are no
observers/ ("alternative to the textbook formalism of
state-vectors and external *observers*").t
And that's why they fail to predict observations. But they do
assign probabilities to specific events and they condition those
on prior events or not.
Brent
They all make predictions.
/The Schrödinger equation is not the only way to study quantum
mechanical systems and/
/*
*/
/* make predictions*./
/
/
/The other formulations of quantum mechanics include matrix mechanics,
introduced by Werner Heisenberg, and the *path integral formulation**,
developed chiefly by Richard Feynman. Paul Dirac incorporated matrix
mechanics and the Schrödinger equation into a single formulation.
/
How will we know whether the predictions are right or not, unless they
are predictions of observations?
Brent
** From path integral formulation to Schrödinger's equation*
https://en.wikipedia.org/wiki/Relation_between_Schr%C3%B6dinger%27s_equation_and_the_path_integral_formulation_of_quantum_mechanics#From_path_integral_formulation_to_Schr%C3%B6dinger's_equation
/
/
@philipthrift
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