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QuantumT

Exotic Physics Phenomenon Observed

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An exotic physical phenomenon, involving optical waves, synthetic magnetic fields, and time reversal, has been directly observed for the first time, following decades of attempts. The new finding could lead to realizations of what are known as topological phases, and eventually to advances toward fault-tolerant quantum computers, the researchers say.

https://phys.org/news/2019-09-exotic-physics-phenomenon.html

Since English isn't my native language, I have a hard time understanding what this means, practically. Could someone kindly explain it?

Thanks!

Edited by QuantumT

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I wouldn't worry: the problem is not your English language ability!

I don't understand it either.

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7 minutes ago, Strange said:

I wouldn't worry: the problem is not your English language ability!

I don't understand it either.

I appreciate the reply!

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Here is the arxiv article

https://arxiv.org/abs/1906.03369

Hrrm how to simplify this. Ok let's give this a shot.

In classical physics you have the E and B fields for electromagnetism however in QM those fields are replaced by the probability potentials [math]\phi[/math] and [math]\mathcal{A}[/math] now in regions where the E and B fields are zero you can still have potential via the wavefunction that the [math]\phi[/math] and [math]\mathcal{A}[/math] are non zero 

This tells us that the QM and QFT subsequently treatments is more fundamental than the classical treatment in that it is more complete in the information of the EM field. In essence the paper helps confirm that the probability wave functions do have a physical and measurable effect through their potentials.

For example it's also a key aspect to how a particle wave packet can go through two slits at once.

Edited by Mordred

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15 hours ago, Mordred said:

Here is the arxiv article

https://arxiv.org/abs/1906.03369

Hrrm how to simplify this. Ok let's give this a shot.

In classical physics you have the E and B fields for electromagnetism however in QM those fields are replaced by the probability potentials ϕ and A now in regions where the E and B fields are zero you can still have potential via the wavefunction that the ϕ and A are non zero 

This tells us that the QM and QFT subsequently treatments is more fundamental than the classical treatment in that it is more complete in the information of the EM field. In essence the paper helps confirm that the probability wave functions do have a physical and measurable effect through their potentials.

For example it's also a key aspect to how a particle wave packet can go through two slits at once.

Thank you very much, Mordred.

So if the wave state is applicable in our reality/world/universe or whatever, does that not mean it weakens the many worlds hypothesis?

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Well it will definitely be something that will be difficult for the MWI interpretation to deal with. MWI doesn't deal well with probability density functions. 

 For one thing then Aharonov Bohm effect was in strong contention as to whether [math]A_\mu[/math] was strictly a mathematical object without any physical effect.

This paper shows otherwise. 

 

Edited by Mordred

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