Event horizons are tunable factories of quantum entanglement

phys.org ^ | MARCH 4, 2022

[BenLurkin]

Louisiana State University physicists have leveraged quantum information theory techniques to reveal a mechanism for amplifying, or "stimulating," the production of entanglement in the Hawking effect in a controlled manner. Furthermore, these scientists propose a protocol for testing this idea in the laboratory using artificially produced event horizons. These results have been recently published in Physical Review Letters, "Quantum aspects of stimulated Hawking radiation in an analog white-black hole pair," where Ivan Agullo, Anthony J. Brady and Dimitrios Kranas present these ideas and apply them to optical systems containing the analog of a pair white-black hole.

Stephen Hawking added more mystique to the character of black holes by showing that, once quantum effects are considered, a black hole isn't really black at all but, instead, emits radiation, as if it was a hot body, gradually losing mass in the so-called "Hawking evaporation process." Further, Hawking's calculations showed that the emitted radiation is quantum mechanically entangled with the bowels of the black hole itself. This entanglement is the quantum signature of the Hawking effect. This astounding result is difficult, if not impossible, to be tested on astrophysical black holes, since the faint Hawking radiation gets overshined by other sources of radiation in the cosmos.

On the other hand, in the 1980's, a seminal article by William Unruh established that the spontaneous production of entangled Hawking particles occurs in any system that can support an effective event horizon. Such systems generally fall under the umbrella of "analog gravity systems" and opened a window for testing Hawking's ideas in the laboratory.

[BenLurkin]

"We show that, by illuminating the horizon, or horizons, with appropriately chosen quantum states, one can amplify the production of entanglement in Hawking's process in a tunable manner," said Associate Professor Ivan Agullo. "As an example, we apply these ideas to the concrete case of a pair of analog white-black holes sharing an interior and produced within a non-linear optical material."

[Conan the Librarian]

BenLurkin, can you add me back to your ping list?

I seem to have fallen off.

Thanks!

[Pez149]

This is nothing but more psycho-babble...
The moment you say that “we believe”, you are now entering religion and not science...

[BenLurkin]

Am forwarding your request to Mr. Civ who keeps the string theory list.

Unless you mean the “Ping Me When the Internet Goes Down” ping list, in which case you will be the inagural member.

[Recon Dad]

must be the MIT of...Baton Rouge!!😉

[Olog-hai]

“Peace, commerce and honest friendship with all planets; quantum entanglements with none” . . .

[NeverTyranny]

My head is entangled.

[ComputerGuy]

Quantum Entanglement? I wonder if Stormy would go for some of that.

[algore]

Entanglelment sure ok cool

Ftl ansibles or something.

Not so sure we should be messing with event horizons on earth.

Black holes do stuff to matter

[GingisK]

The beauty of making a black hole on the earth is that nobody will complain about it, and the funding will automatically dry up.

[BenLurkin]

[Still Thinking]

Gotta power the turbo-encabulator somehow.

[Who is John Galt?]

Gotta power the turbo-encabulator somehow.

Maybe quantum mechanically entangle it with a reverse-turbo-encabulator, to produce an analog gravity system-based, dual counter-rotating perpetual motion encabulator...

;>)

[Still Thinking]

Exactly! ;)

[Islander7]

The Founding Fathers warned us to avoid foreign entanglements, seems quantum entanglements should be avoided too.

[SunkenCiv]

Thanks BenLurkin.

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[windsorknot]

[SuperLuminal]

Sometimes it seems as if Hawking is treated as the 2nd coming of Abraham coming down from the mount with a stone tablet...

The difference being that the stone tablet contained irrefutable truths that have withstood the experimental data for more than two thousand years...

Hawking’s work was brilliant, only time will tell if it contained irrefutable truths... At this point in time, there are no data to support it...

Although one should not be too skeptical... Take the Higgs boson for example... About 50-years proposed and chased until it became an irrefutable truth...
Even longer time required for the fermentation of those “black holes”...

In the meantime, if you want to get funding, mention that you are chasing Hawking’s theory...
Take a trip to the nearest black hole and collect data from both sides of the Schwarzchild radius... Return and publish the findings in Physical Review Letters...

Until then, we still have that danged hockey stick to contend with...

[Conan the Librarian]

no, just confussilated