Newly Discovered Phenomenon Shows Electrons Can Move Much Faster Than Expected

Sounds like the cycling Charge Field pressure enhances flow in certain situations.

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Newly Discovered Phenomenon Shows Electrons Can Move Much Faster Than Expected
Weizmann Institute of Science

March 7, 2017

In this illustration, the orange surface represents the potential energy needed to get an electron moving, and the “valley” at center represents the constricted portion.

A new study shows that electrons passing through a narrow constriction in a piece of metal can move much faster than expected, and that they move faster if there are more of them — a seemingly paradoxical result.

A new finding by physicists at MIT and in Israel shows that under certain specialized conditions, electrons can speed through a narrow opening in a piece of metal more easily than traditional theory says is possible.

This “superballistic” flow resembles the behavior of gases flowing through a constricted opening, however it takes place in a quantum-mechanical electron fluid, says MIT physics professor Leonid Levitov, who is the senior author of a paper describing the finding that appears this week in the Proceedings of the National Academy of Sciences.

In these constricted passageways, whether for gases passing through a tube or electrons moving through a section of metal that narrows to a point, it turns out that the more, the merrier: Big bunches of gas molecules, or big bunches of electrons, move faster than smaller numbers passing through the same bottleneck.

The behavior seems paradoxical. It’s as though a mob of people trying to squeeze through a doorway all at once find that they can get through faster than one person going through alone and unobstructed. But scientists have known for nearly a century that this is exactly what happens with gases passing through a tiny opening, and the behavior can be explained through simple, basic physics, Levitov says.

In a passageway of a given size, if there are few gas molecules, they can travel unimpeded in straight lines. This means if they are moving at random, most of them will quickly hit the wall and bounce off, losing some of their energy to the wall in the process and thus slowing down every time they hit. But with a bigger batch of molecules, most of them will bump into other molecules more often than they will hit the walls. Collisions with other molecules are “lossless,” since the total energy of the two particles that collide is preserved, and no overall slowdown occurs. “Molecules in a gas can achieve through ‘cooperation’ what they cannot accomplish individually,” he says.

As the density of molecules in a passageway goes up, he explains, “You reach a point where the hydrodynamic pressure you need to push the gas through goes down, even though the particle density goes up.” In short, strange as it might seem, the crowding makes the molecules speed up.

A similar phenomenon, the researchers now report, governs the behavior of electrons when they are hurtling through a narrow piece of metal, where they move in a fluid-like flow.

The result is that, through a sufficiently narrow, point-like constriction in a metal, electrons can flow at a rate that exceeds what had been considered a fundamental limit, known as Landauer’s ballistic limit. Because of this, the team has dubbed the new effect “superballistic” flow. This represents a great drop in the electrical resistance of the metal — though it is much less of a drop than what would be required to produce the zero resistance in superconducting metals. However, unlike superconductivity, which requires extremely low temperatures, the new phenomenon may take place even at room temperature and thus may be far easier to implement for applications in electronic devices.

In fact, the phenomenon actually increases as the temperature rises. In contrast to superconductivity, Levitov says, superballistic flow “is assisted by temperature, rather than hindered by it.”

Through this mechanism, Levitov says, “we can overcome this boundary that everyone thought was a fundamental limit on how high the conductance could be. We’ve shown that one can do better than that.”

He says that though this particular paper is purely theoretical, other teams have already proved its basic predictions experimentally. While the speedup observed in flowing gases in the analogous case can achieve a tenfold or greater speedup, it remains to be seen whether improvements of that magnitude can be achieved for electrical conductance. But even modest reductions in resistance in some electronic circuits could be a significant improvement, he says.

“This work is careful, elegant, and surprising — all the hallmarks of very high-quality research,” says David Goldhaber-Gordon, a professor of physics at Stanford University who was not involved in this research. “In science, I feel phenomena that confound our intuitions are always useful in stretching our sense of what is possible. Here, the idea that more electrons can fit through an aperture if the electrons deflect each other rather than traveling freely and independently is quite counterintuitive, in fact the opposite of what we’re used to. It’s especially intriguing that Levitov and co-workers find that the conductance in such systems follows such a simple rule.”

(More at link:
http://scitechdaily.com/newly-discovered-phenomenon-shows-electrons-can-move-much-faster-than-expected/
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From Cr6 above.
A new study shows that electrons passing through a narrow constriction in a piece of metal can move much faster than expected, and that they move faster if there are more of them — a seemingly paradoxical result.

Good catch Cr6! I looked at the source paper – don’t tell me the undergrad did it, and thought - my god why must the math be so incomprehensible?

Miles came to the rescue!

NEW PAPER, added 3/12/17, New “Electron Paradox” again proves my Charge Field. I show that the “superballistic” motion of electrons in metals is not a paradox or quantum effect, but a simple outcome of charge channeling and photon potentials.

In which Miles points out - The potential through that gap is determined by how the metal is channeling charge in that region, and what determines that is the nuclear structure of the metal, the temperature of the metal, and the way that heat is being added.  Since all those questions are questions of charge and real photons, the only way to solve the problem is by looking at how charge is being channeled.  Since the mainstream utterly ignores charge channeling, it cannot solve these problems no matter what math it brings to the table.  If you start with the wrong field mechanics, no amount of math with help you.

Can I say it? Amen!
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LongtimeAirman wrote:.

From Cr6 above.
A new study shows that electrons passing through a narrow constriction in a piece of metal can move much faster than expected, and that they move faster if there are more of them — a seemingly paradoxical result.

Good catch Cr6! I looked at the source paper – don’t tell me the undergrad did it, and thought - my god why must the math be so incomprehensible?

Miles came to the rescue!

NEW PAPER, added 3/12/17, New “Electron Paradox” again proves my Charge Field. I show that the “superballistic” motion of electrons in metals is not a paradox or quantum effect, but a simple outcome of charge channeling and photon potentials.

In which Miles points out - The potential through that gap is determined by how the metal is channeling charge in that region, and what determines that is the nuclear structure of the metal, the temperature of the metal, and the way that heat is being added.  Since all those questions are questions of charge and real photons, the only way to solve the problem is by looking at how charge is being channeled.  Since the mainstream utterly ignores charge channeling, it cannot solve these problems no matter what math it brings to the table.  If you start with the wrong field mechanics, no amount of math with help you.

Can I say it? Amen!
.

Amen!