A meaningful combination into quantum gravity is known to be
central problem in physics today. Deep thought into this problem has presented
some twists. Fundamental to relativity is the total denial of any special
coordinate system. That and constancy of speed of light in any system is enough
to derive all of special theory of relativity. That it is sufficient, together
with symmetries being sufficient to derive other basic physics interactions at
particle level, are enough in my mind to conclude
1. Physical laws are not magical or divinely
configured but consequences of geometry. This conclusion if further
strengthened by being able to derive some constants as inevitable consequences
of geometric ratios. Given that geometry itself is an emergent phenomenon from
planck quantization of space and time, is the final straw in many extreme
effects.
2. Above leads one to examine quantum
phenomenon as inevitable consequences of coordinate systems and great gap
between neutrino sizes and planck sizes! Neutrinos are very hard to even show
existence of! Very elaborate, huge and many yearlong investigations are
required to even get data on neutrinos. Experiments include huge caverns, one
km cube of ice at south pole, half the world production of Xenon for ten years,
sea bottom in Mediterranean etc.
This note is about coordinate thinking
applied to Schrodinger cat and my confusion. Consider a coordinate system
attached to an observer outside the system. Clearly the cat is in
superposition, alive and dead same time. But relative to a system attached to
cat, the cat is alive or dead! No complication! That the elaborate preparation
of the scientist complicated his quantum state. But not the cats! So my
confusion – A particle may be at once in mixed quantum state. But to say an
extended object is, either says EVERY particle is at once in mixed quantum
state simultaneously, say once in 10^100 CCC universes, a VERY rare
happening indeed, or the poor scientist has managed to make his state mixed,
these are the two possibilities! There is nothing magical happening. Perhaps
the only confused is Sir Schrodinger!
Independent of, similar to, but later to
Sir Stonjek,
who provides evidence that perhaps I am lot less confused.
Questioning Single World
interpretation of QM
There
is an interesting thought experiment, called Wigner’friend from
above (makes the link fun reading). It shows the collapse standard
interpretation gets into hot water! But the point below shows that ANY single
world interpretation, including my earlier own Bohm’s, is either wrong or QM is
non-unitariity (All probabilities do not add to one!) So only survivor is
Everett's many world or my synthesis by 2D time!
Single-world interpretations of quantum
theory cannot be self-consistent
According to quantum theory, a measurement may have multiple
possible outcomes. Single-world interpretations assert that, nevertheless, only
one of them "really" occurs. Here we propose a gedanken-experiment
where quantum theory is applied to model an experimenter who herself uses
quantum theory. We find that, in such a scenario, no single-world works
interpretation can be logically consistent. This conclusion extends to
deterministic hidden-variable theories, such as Bohmian mechanics, for they
impose a single-world interpretation. This is done by proving
Main result (informal version) There cannot exist a physical
theory T that has all of the following properties:
(QT) Compliance with quantum theory: T forbids all
measurement results that are forbidden by standard quantum theory (and this
condition holds even if the measured system is large enough to contain itself
an experimenter).
(SW) Single-world: T rules out the occurrence of more than one
single outcome if an experimenter measures a system once.
(SC) Self-consistency: T’s statements about measurement
outcomes are logically consistent (even if they are obtained by considering the
perspectives of different experimenters).
I interpret this result as denying all interpretations but three multiple worlds (Everett's many world, quantum chemistry some world, mine oneworld 2D time) and QBism (B=Bayesian). Mark my words, 2018 is Quantum-interpretation semifinals!
I interpret this result as denying all interpretations but three multiple worlds (Everett's many world, quantum chemistry some world, mine oneworld 2D time) and QBism (B=Bayesian). Mark my words, 2018 is Quantum-interpretation semifinals!
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