Holographic image of a black hole proposed in a graphene flake

July 25, 2018 by Lisa Zyga, Phys.org feature
Illustration of the proposed graphene flake device in an applied magnetic field B, which forms a (0+1)-dimensional system equivalent to a black hole in (1+1)-dimensional spacetime. Credit: Chen et al. ©2018 American Physical Society

Physicists have theoretically shown that, by applying a magnetic field to a small, irregularly shaped graphene flake, the flake becomes a quantum hologram of a black hole. This means that the graphene flake recreates the spatial structure and characteristic properties of a black hole, but in a much smaller, lower-dimensional system.

The physicists, Anffany Chen and coauthors from institutions in Canada, Israel, the UK, and the US, have published a paper on the quantum hologram in a recent issue of Physical Review Letters.

"We show that a rather ubiquitous and well-studied material—graphene—can behave in novel and exciting ways under certain conditions," coauthor Marcel Franz, a physics professor at the University of British Columbia, told Phys.org. "Specifically, the electrons in a nanoscale-sized flake of graphene with an irregular boundary and in an applied could realize the so-called Sachdev-Ye-Kitaev (SYK) ."

As the physicists explain, the SYK model illustrates a type of "," in which a higher-dimensional system (here, a black hole in (1+1)-dimensional spacetime) can be represented by a lower-dimensional system (in this case, the electrons in graphene, which occupy a (0+1)-dimensional spacetime).

The type of holographic duality illustrated by the SYK model is particularly interesting because it exhibits some of the signature properties of , such as non-zero residual entropy and quantum chaos propagation. It may also help answer fundamental questions about the connection between quantum mechanics and gravity.

"The SYK model is of great interest to physicists today because it is believed to contain a holographic description of a quantum black hole," Franz said. "Some of the most enigmatic mysteries in modern physics lie at the interface between Einstein's general relativity (a theory describing spacetime, gravity and black holes) and quantum mechanics (a theory describing microscopic phenomena, electrons, atoms, etc). A better understanding of the SYK model could therefore shed light on these fundamental questions."

Unlike other systems that have been proposed to demonstrate the SYK model, the new quantum phase of graphene does not require any advanced fabrication techniques and should be realizable using existing technology. The main requirements are that the graphene flake have a highly irregular boundary and a clean interior so that the electron wave functions have a random , which provides the necessary conditions for realizing the hologram of a black hole.

"We are currently working on understanding the transport properties of the graphene flake in the SYK regime," Franz said. "More generally, we are hoping that our theoretical results will motivate experimentalists to study graphene flakes of the type required to produce the SYK physics, and we are ready to provide theoretical support to any such efforts."

Explore further: Loop quantum gravity theory offers glimpse beyond the event horizon

More information: Anffany Chen et al. "Quantum Holography in a Graphene Flake with an Irregular Boundary." Physical Review Letters. DOI: 10.1103/PhysRevLett.121.036403
Also at arXiv:1802.00802 [cond-mat.str-el]

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13 comments

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dirk_bruere
3 / 5 (5) Jul 25, 2018
Those fools! They are meddling with forces they do not understand and we can all be sucked into the hole and die horribly! It's the LHC all over again.
carbon_unit
4.3 / 5 (6) Jul 25, 2018
Don't Panic, Dirk! A picture of something dangerous (lion, tiger, black hole) isn't dangerous.
This means that the graphene flake recreates the spatial structure and characteristic properties of a black hole, but in a much smaller, lower-dimensional system.
Yeah, and lower gravity too! (It is always good when your experiment poses no risk of stringifying you!) Fascinating that they may be able to construct a model of such an extreme environment in a flake of graphene. I wonder what we'll learn...
dnatwork
5 / 5 (9) Jul 25, 2018
Clearly, the first practical application will be a quantum chaos propagation gun. And porn.
someone11235813
not rated yet Jul 25, 2018
It's a black hologram!
Surveillance_Egg_Unit
5 / 5 (1) Jul 25, 2018
Clearly, the first practical application will be a quantum chaos propagation gun. And porn.


Yes. And with a holographic representation of stripper Stormy Daniels dancing naked on a platform in the middle of the flake.

(readying my microscope)
howhot3
5 / 5 (3) Jul 25, 2018
And now we know the secret of the amazing "Rick and Morty" portal gun.
Whydening Gyre
3 / 5 (2) Jul 25, 2018
See the whole of the Universe in a grain of sand...
tallenglish
1 / 5 (3) Jul 26, 2018
when did everything looking like a black hole become the new cold fusion?
Ojorf
3 / 5 (2) Jul 26, 2018
^^^
It would take years of education to explain it to you.
Surveillance_Egg_Unit
5 / 5 (1) Jul 27, 2018
^^^
It would take years of education to explain it to you.


LOL Why would it take you that long just to give a simple explanation?
Whart1984
3 / 5 (2) Jul 28, 2018
It would take years of education to explain it to you
Albert Einstein — 'You do not really understand something unless you can explain it to your grandmother.'
Surveillance_Egg_Unit
5 / 5 (1) Jul 31, 2018
See the whole of the Universe in a grain of sand...
says Whyde

I see you have also become enamored of Lara Croft.
Whydening Gyre
5 / 5 (1) Aug 04, 2018
See the whole of the Universe in a grain of sand...
says Whyde

I see you have also become enamored of Lara Croft.

Why not?
She's smart and pretty hot...

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