Photon

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According to Geoff Jones, photons do not exist.

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In double-slit experiment, an electromagnetic field might fill the entire the entire Universe to ‘know’ that there are two slits there. No particle but a disturbance or new  information is transacted in field’s ledger-book. What is ‘detected’ as a photon is the removal of one quantum or packet of energy from the field. Only ‘disturbances in the media’ i.e.  transmissible information give birth to our so-called reality. Recent quantum-Darwinism and Wigner’s friend experiments dismissing any shared objective reality (that can exist on its own) are in line with such ‘media-born/transmitted/selected/ subjective/memetic reality’.

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Our model of reality can easily exclude  photons if we say that energy can only be added to or subtracted from the field in definite units.

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An electric field exerts a force on a charged particle along the direction of the field. A magnetic field  exerts a force perpendicularly to the velocity of a charged particle. Thus a charged particle moves in circles around magnetic fields.
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Electromagnetic waves are interlocked oscillations of electric and magnetic fields.

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A quantum system imprints replicas of itself on its environment.

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In quantum Darwinism experiments,

only a few particles/ a single photon serves as the quantum system, with a handful of other photons serving as the “environment” that interacts with it and broadcasts information about it.
Some laser photons combine them into multiply entangled groups. Then  the environment photons are interrogated to see what information they encode about the system photon’s pointer state – its polarization (the orientation of its oscillating electromagnetic fields), one of the quantum properties able to pass through the filter of quantum Darwinian selection.

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Since information saturates soon,
measurements of just one of the environment photons reveal a lot of the available information about the system photon’s polarization, and measuring an increasing fraction of the environment photons provided diminishing returns.

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In quantum Darwinism experiments,even a single photon can act as an environment to initiate decoherence and selection if it interacts strongly enough with the lone system photon. When interactions are weaker, a larger environment must be monitored.
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