Aharonov-Bohm Effect: Difference between revisions

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'''Yakir Aharonov''' (b. 1932)<br>
'''David Bohm''' (b.1917)


'''Y. Aharanov, D. Bohm''' (b. 1917-1932)
'''''Aharonov–Bohm effect''''' 1959
 
The Aharonov–Bohm effect, sometimes called the Ehrenberg–Siday–Aharonov–Bohm effect, is a quantum mechanical phenomenon in which an electrically charged particle is affected by an electromagnetic potential (φ, A), despite being confined to a region in which both the magnetic field B and electric field E are zero. The underlying mechanism is the coupling of the electromagnetic potential with the complex phase of a charged particle's wave function, and the Aharonov–Bohm effect is accordingly illustrated by interference experiments.
 
== On X ==


'''''Aharonov–Bohm effect''''' 1959
{{Tweet
|image=Eric profile picture.jpg
|nameurl=https://x.com/EricRWeinstein/status/19286887679
|name=Eric Weinstein
|usernameurl=https://x.com/ericweinstein
|username=ericweinstein
|content=Physically "I'm my own grandpa" is the [[Aharonov-Bohm Effect|Aharonov-Bohm effect]] w/ "Grandpa" as phaseshift (absent in the universal cover): http://bit.ly/9rEt92
|timestamp=10:01 PM · Jul 22, 2010
}}
 
 
{{Tweet
|image=Eric profile picture.jpg
|nameurl=https://x.com/EricRWeinstein/status/1652143262290038785
|name=Eric Weinstein
|usernameurl=https://x.com/ericweinstein
|username=ericweinstein
|content=@elonmusk @MuskUniversity *respectfully
 
Sorry. Autocorrect and I have our moments. The point stands however.
|thread=
{{Tweet
|image=Eric profile picture.jpg
|nameurl=https://x.com/EricRWeinstein/status/1652141676964773888
|name=Eric Weinstein
|usernameurl=https://x.com/ericweinstein
|username=ericweinstein
|content=@elonmusk @MuskUniversity That is, respectively, not the issue.
 
You “break physical law” by showing that physical theory is merely effective. Why are you not investing in fundamental physics to render current thy effective??
 
[[Aharonov-Bohm Effect|Aharonov-Bohm]], Lee-Yang, Superconductivity, Superfluidity, etc are examples.
|timestamp=2:44 AM · Apr 29, 2023
}}
{{Tweet
|image=Eric profile picture.jpg
|nameurl=https://x.com/EricRWeinstein/status/1652142783891910657
|name=Eric Weinstein
|usernameurl=https://x.com/ericweinstein
|username=ericweinstein
|content=@elonmusk @MuskUniversity Good job tonight by the way. But can we actually stop messing around and get focused on actually getting off this rock? This is getting dangerous just letting this Ukraine/climate/market thing keep running. It’s not gonna run like this forever
as you more than others well know.
|media=ERW-X-post-1652142783891910657-Fu2XGo6aYAE4qfg.jpg
|timestamp=2:48 AM · Apr 29, 2023
}}
|timestamp=2:50 AM · Apr 29, 2023
}}
 
 
{{Tweet
|image=Eric profile picture.jpg
|nameurl=https://x.com/EricRWeinstein/status/1941379769742078454
|name=Eric Weinstein
|usernameurl=https://x.com/ericweinstein
|username=ericweinstein
|content=@barryzed Quite. Thanks. 🙏
|thread=
{{Tweet
|image=Eric profile picture.jpg
|nameurl=https://x.com/EricRWeinstein/status/1941374102197109183
|name=Eric Weinstein
|usernameurl=https://x.com/ericweinstein
|username=ericweinstein
|content=Quality Control: the scourge of Great Science.
 
You cannot quality control your nation to great theoretical physics. Can’t be done.
 
It’s about what has never been done. I could wipe out all of past theoretical physics with [[Peer Review|peer review]] &amp; quality control.
 
{{#widget:YouTube|id=wcSIAJdOZ-Q}}
|timestamp=5:50 AM · Jul 05, 2025
}}
{{Tweet
|image=Eric profile picture.jpg
|nameurl=https://x.com/EricRWeinstein/status/1941374104633999571
|name=Eric Weinstein
|usernameurl=https://x.com/ericweinstein
|username=ericweinstein
|content=“Mr Feynman: what is the measure on that integral?”
 
“But then your eigenfunctions aren’t in your Hilbert space.”
 
“Wait: why are we adding ad hoc positivity conditions again?”
 
“So nature just gives us this magic sector Mr Higgs because it would solve all your problems? Have you considered going into screenwriting?”
 
“But Dr Einstein, your equations must be wrong because they lead to singularities that can’t be removed.”
 
“Dr Gell-Mann: you are just randomly applying SU(3) to totally different things. Like a man with a hammer thinking everything is a nail.”


From Wikipedia, the free encyclopedia
“But Paul, then the election and the proton would have the same mass. Rejected for publication I’m afraid.”


The Aharonov–Bohm effect, sometimes called the Ehrenberg–Siday–Aharonov–Bohm effect, is a quantum mechanical phenomenon in which an electrically charged particle is affected by an electromagnetic potential (φ, A), despite being confined to a region in which both the magnetic field B and electric field E are zero. The underlying mechanism is the coupling of the electromagnetic potential with the complex phase of a charged particle's wave function, and the Aharonov–Bohm effect is accordingly illustrated by interference experiments.
“But [[Aharonov-Bohm Effect|Dr Aharonov]]: surely someone would have noticed this. I’m sorry. You can’t give a talk on magical E&M.”
|timestamp=5:50 AM · Jul 05, 2025
}}
{{Tweet
|image=Eric profile picture.jpg
|nameurl=https://x.com/EricRWeinstein/status/1941379571607273722
|name=Eric Weinstein
|usernameurl=https://x.com/ericweinstein
|username=ericweinstein
|content=<nowiki>*</nowiki>electron. My bad.  


The most commonly described case, sometimes called the Aharonov–Bohm solenoid effect, takes place when the wave function of a charged particle passing around a long solenoid experiences a phase shift as a result of the enclosed magnetic field, despite the magnetic field being negligible in the region through which the particle passes and the particle's wavefunction being negligible inside the solenoid. This phase shift has been observed experimentally. There are also magnetic Aharonov–Bohm effects on bound energies and scattering cross sections, but these cases have not been experimentally tested. An electric Aharonov–Bohm phenomenon was also predicted, in which a charged particle is affected by regions with different electrical potentials but zero electric field, but this has no experimental confirmation yet. A separate "molecular" Aharonov–Bohm effect was proposed for nuclear motion in multiply connected regions, but this has been argued to be a different kind of geometric phase as it is "neither nonlocal nor topological", depending only on local quantities along the nuclear path.
Q: How do we get relocate these people at scale? How do they enter theoretical physics? It’s so bizarre.
|timestamp=6:12 AM · Jul 05, 2025
}}
|timestamp=6:13 AM · Jul 05, 2025
}}


Werner Ehrenberg (1901–1975) and Raymond E. Siday first predicted the effect in 1949. Yakir Aharonov and David Bohm published their analysis in 1959. After publication of the 1959 paper, Bohm was informed of Ehrenberg and Siday's work, which was acknowledged and credited in Bohm and Aharonov's subsequent 1961 paper. The effect was confirmed experimentally, with a very large error, while Bohm was still alive. By the time the error was down to a respectable value, Bohm had died.
== Related Pages ==


== Resources: ==
== Resources ==


*[https://en.wikipedia.org/wiki/Aharonov%E2%80%93Bohm_effect Aharanov-Bohm effect]
*[https://en.wikipedia.org/wiki/Aharonov%E2%80%93Bohm_effect Aharanov-Bohm effect]


== Discussion: ==
[[Category:Physics]]

Latest revision as of 23:13, 5 May 2026

Aharanov-Bohm effect.png

Yakir Aharonov (b. 1932)
David Bohm (b.1917)

Aharonov–Bohm effect 1959

The Aharonov–Bohm effect, sometimes called the Ehrenberg–Siday–Aharonov–Bohm effect, is a quantum mechanical phenomenon in which an electrically charged particle is affected by an electromagnetic potential (φ, A), despite being confined to a region in which both the magnetic field B and electric field E are zero. The underlying mechanism is the coupling of the electromagnetic potential with the complex phase of a charged particle's wave function, and the Aharonov–Bohm effect is accordingly illustrated by interference experiments.

On X[edit]

Eric profile picture.jpg
Eric Weinstein

Physically "I'm my own grandpa" is the Aharonov-Bohm effect w/ "Grandpa" as phaseshift (absent in the universal cover): http://bit.ly/9rEt92

10:01 PM · Jul 22, 2010


Eric profile picture.jpg
Eric Weinstein

@elonmusk @MuskUniversity That is, respectively, not the issue.

You “break physical law” by showing that physical theory is merely effective. Why are you not investing in fundamental physics to render current thy effective??

Aharonov-Bohm, Lee-Yang, Superconductivity, Superfluidity, etc are examples.

2:44 AM · Apr 29, 2023
Eric profile picture.jpg
Eric Weinstein

@elonmusk @MuskUniversity Good job tonight by the way. But can we actually stop messing around and get focused on actually getting off this rock? This is getting dangerous just letting this Ukraine/climate/market thing keep running. It’s not gonna run like this forever
as you more than others well know.

ERW-X-post-1652142783891910657-Fu2XGo6aYAE4qfg.jpg
2:48 AM · Apr 29, 2023
Eric profile picture.jpg
Eric Weinstein

@elonmusk @MuskUniversity *respectfully

Sorry. Autocorrect and I have our moments. The point stands however.

2:50 AM · Apr 29, 2023


Eric profile picture.jpg
Eric Weinstein

Quality Control: the scourge of Great Science.

You cannot quality control your nation to great theoretical physics. Can’t be done.

It’s about what has never been done. I could wipe out all of past theoretical physics with peer review & quality control.

5:50 AM · Jul 05, 2025
Eric profile picture.jpg
Eric Weinstein

“Mr Feynman: what is the measure on that integral?”

“But then your eigenfunctions aren’t in your Hilbert space.”

“Wait: why are we adding ad hoc positivity conditions again?”

“So nature just gives us this magic sector Mr Higgs because it would solve all your problems? Have you considered going into screenwriting?”

“But Dr Einstein, your equations must be wrong because they lead to singularities that can’t be removed.”

“Dr Gell-Mann: you are just randomly applying SU(3) to totally different things. Like a man with a hammer thinking everything is a nail.”

“But Paul, then the election and the proton would have the same mass. Rejected for publication I’m afraid.”

“But Dr Aharonov: surely someone would have noticed this. I’m sorry. You can’t give a talk on magical E&M.”

5:50 AM · Jul 05, 2025
Eric profile picture.jpg
Eric Weinstein

*electron. My bad.

Q: How do we get relocate these people at scale? How do they enter theoretical physics? It’s so bizarre.

6:12 AM · Jul 05, 2025
Eric profile picture.jpg
Eric Weinstein

@barryzed Quite. Thanks. 🙏

6:13 AM · Jul 05, 2025

Related Pages[edit]

Resources[edit]

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