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John Murph

@jknm.bsky.social
23 followers 92 following 73 posts

Aotearoa: Creating VR simulations based on William Duane's model of quantum scattering, and its later integration with quantum theory by Carolyne Van Vliet almost 90 years later.

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John Murph @jknm.bsky.social · 12/09/2026
Almost every equation in quantum physics depends on special relativity, especially when you consider Dirac's work, which applies relativity to quantum theory to predict antimatter. The idea that the two clash is confined to quantum interpretations that treat the wavefunction as reality.
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John Murph @jknm.bsky.social · 11/01/2026
A short clip shot in my VRChat world vrchat.com/home/world/w.... The simulation implements a quantum scattering model proposed by Carolyne Van Vliet in 2010, in which the matter in the slit screen momentarily interacts coherently to 'kick' particles as they pass through the apertures.
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John Murph @jknm.bsky.social · 01/01/2026
Thanks for checking. It seems to be geolocked.
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John Murph @jknm.bsky.social · 30/12/2025
Sadly, tt doesn't seem to be accessible outside the UK.
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John Murph @jknm.bsky.social · 30/12/2025
In light of Van Vliet's work, the classical/quantum divide masks a drastic a priori simplification in the wavefunction approach to the double slit, which utilises a statistical average of the quantum interactions of matter with the screen to yield an analytic solution but forces a statistical result
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John Murph @jknm.bsky.social · 30/12/2025
William Duane's 1923 quantum scattering model challenges the particle paradigm because it doesn't involve incident particles undergoing classical wave diffraction. Carolyne Van Vliet derived from contemporary quantum theory by treating the slit screen as undergoing a distributed, quantum interaction
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John Murph @jknm.bsky.social · 06/12/2025
I'm exploring ways to give people an interactive VR example of Duane's quantum scattering model. Here is my forst shot at a model on #spatial_io www.spatial.io/s/QuantumSca...
spatial.io
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John Murph @jknm.bsky.social · 29/10/2025
A fantastic explanation of this experiment was obscured when Niels Bohr's dismissal of the photon played into the hands of those preoccupied with suppressing Einstein's brilliance.
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John Murph @jknm.bsky.social · 28/10/2025
Van Vliet's work yields an accurate model of molecular diffraction by considering the scattering object as a distributed quantum entity interacting with a free particle. Note that in free space, QM probability distributions evolve in a way that is mathematically equivalent to ballistic diffusion.
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John Murph @jknm.bsky.social · 27/10/2025
A 3D particle scattering simulation in Somnium Space. somniumspace.com/world/4182 Although at odds with some quantum interpretations, the model was shown to align with modern quantum physics by Carolyne Van Vliet in 1967 (crystals & gratings) and 2010 (aperiodic gratings such as the double slit).
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John Murph @jknm.bsky.social · 14/10/2025
In 1967 Carolyne Van Vliet showed that Duane's model of quantum scattering of electrons/photons by periodic gratings and crystals could be derived from quantum theory by treating the array of scatterers as a quantum object. The clip shows a VR simulation of Duane's rule. somniumspace.com/world/4182
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John Murph @jknm.bsky.social · 14/10/2025
Carolyne Van Vliet's insight cuts through Everett and Bohr's word salads. Her straightforward development of Duane's model of quantum scattering shows how treating the scattering object as a quantum system could make the narrow set of popular quantum interpretations redundant.
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John Murph @jknm.bsky.social · 14/10/2025
When we try to solve the 'measurement problem' with ad hoc measures like 'wavefunction collapse' or 'many worlds', we miss that the 'problem' may stemfrom assuming we can treat the scattering object as a statistical average of its internal quantum states and interactions.
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John Murph @jknm.bsky.social · 14/09/2025
My SomniumSpace world : somniumspace.com/world/4182 . Shows a quantum particle simulation without a wave function, tracks classical wave interference. Able to run in VR by utilising a GPU to implement a quantum scattering derived from the 1923 work of William Duane by Carolyne Van Vliet in 2010.
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John Murph @jknm.bsky.social · 02/09/2025
In the past weeks I've been building a new VR experience in Somnium Space, a powerful new platform for VR. The clip here shows an compute shader wave simulation running below two models of quantum scattering, the upper a probability map, the middle a particle simulation.
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John Murph @jknm.bsky.social · 14/08/2025
The Coleoptera
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John Murph @jknm.bsky.social · 12/08/2025
A 1923 quantum scattering model by Ukrainian/American physicist Gregory Breit adapted William Duane's quantum model of crystal diffraction to the double slit. My VRChat world features GPU simulations of the wave model alongside Breit's particle model. vrchat.com/home/world/w...
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John Murph @jknm.bsky.social · 29/05/2025
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John Murph @jknm.bsky.social · 28/05/2025
Lysenko killed millions, RFK "Hold my beer" www.youtube.com/watch?v=AhSB...
youtube.com
The Man Who Killed Millions Trying To Grow Food In Snow
YouTube video by Vsauce2
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John Murph @jknm.bsky.social · 26/05/2025
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John Murph @jknm.bsky.social · 10/05/2025
Wordle 1,422 5/6 ⬛⬛🟨⬛⬛ ⬛⬛🟨⬛🟨 ⬛🟨🟨🟨🟨 ⬛🟩🟩🟩🟩 🟩🟩🟩🟩🟩Phew!
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John Murph @jknm.bsky.social · 10/05/2025
Sounds like #VRChat
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John Murph @jknm.bsky.social · 09/05/2025
Pope Ginger Crunch IV
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John Murph @jknm.bsky.social · 08/05/2025
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John Murph @jknm.bsky.social · 25/04/2025
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John Murph @jknm.bsky.social · 21/04/2025
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John Murph @jknm.bsky.social · 12/03/2025
Snap Wordle 1,363 2/6 🟨🟨🟩⬛🟩 🟩🟩🟩🟩🟩
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John Murph @jknm.bsky.social · 27/02/2025
Seems FSU is an oxymoron
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John Murph @jknm.bsky.social · 08/02/2025
removing the competition to his own charging network?
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John Murph @jknm.bsky.social · 08/02/2025
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John Murph @jknm.bsky.social · 01/02/2025
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John Murph @jknm.bsky.social · 27/01/2025
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John Murph @jknm.bsky.social · 25/01/2025
I've been fine-tuning my virtual reality simulations in VRChat and slowly working to put the assets into GitHub. It's remarkable that a 100-year-old model, ignored by theorists of the time, could produce such striking results. vrchat.com/home/world/w...
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John Murph @jknm.bsky.social · 25/01/2025
It's great to see you here!
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John Murph @jknm.bsky.social · 21/01/2025
snap Wordle 1,313 2/6 🟩🟨🟨🟨⬛ 🟩🟩🟩🟩🟩
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John Murph @jknm.bsky.social · 18/01/2025
Yikes... Wordle 1,310 6/6* ⬛⬛⬛🟨🟨 ⬛🟨🟨⬛⬛ ⬛🟩⬛🟩🟩 ⬛🟩🟩🟩🟩 ⬛🟩🟩🟩🟩 🟩🟩🟩🟩🟩
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John Murph @jknm.bsky.social · 03/01/2025
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John Murph @jknm.bsky.social · 02/01/2025
#VRChat simulation showing how an early model of quantum scattering generates patterns that align with wave diffraction patterns even though the mechanisms are quite different. The clip shows a double-slit pattern, then a nine-slit pattern to show how both mechanisms produce a Talbot effect.
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John Murph @jknm.bsky.social · 01/01/2025
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John Murph @jknm.bsky.social · 21/12/2024
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John Murph @jknm.bsky.social · 05/12/2024
I've just published a new world in #VRChat to help illustrate a model of quantum scattering proposed in 1923 by William Duane. Dismissed in favor of wave-particle duality, it was later shown to be consistent with quantum theory by Carolyne Van Vliet in 1967 and 2010. vrchat.com/home/launch?...
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John Murph @jknm.bsky.social · 03/12/2024
… However, as Van Vliet pointed out (Quantization of linear momentum 1967), it's not amenable to a tidy solution. Ad-hoc moves such as collapse and many worlds result from adopting a model in which the particle behaves as a wave, partly based on the availability of a pathway to solve the equations.
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John Murph @jknm.bsky.social · 03/12/2024
The model of a wave and perfect classical walls works because it leads to getting an analytical solution the Schrodinger eqn. Another approach (Carolyne Van Vliet and William Duane) shows it's also just as valid to treat the walls as a superposition of states interacting with a localized particle…
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John Murph @jknm.bsky.social · 01/12/2024
Great to see you here.
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John Murph @jknm.bsky.social · 28/11/2024
I'm telling you I haven't been briefed on those things
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John Murph @jknm.bsky.social · 23/11/2024
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John Murph @jknm.bsky.social · 07/11/2024
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John Murph @jknm.bsky.social · 02/11/2024
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John Murph @jknm.bsky.social · 05/10/2024
Having worked in interferometry and solid-state physics, I'm aware of interference's limitations as an explanation. Duane's (which you seem to have dismissed without checking) and Van Vliet's (you skimmed) approaches fit the convergence between momentum diffusion in waves and ballistic diffusion.
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John Murph @jknm.bsky.social · 05/10/2024
Not when it comes to the probability density evolution under the Schrodinger equation, which is mathematically and operationally identical to ballistic diffusion. In that case, the interference model breaks down, requiring a magical collapse. Interference as a universal explanation may be Ptolemy.
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