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posted by martyb on Thursday August 02 2018, @12:56AM   Printer-friendly
from the edgy! dept.

Black hole hologram appears in a graphene flake

Much research on black holes is theoretical since it is difficult to make actual measurements on real black holes. Such experiments also need to be undertaken over decades or longer. Physicists are therefore keen to create laboratory systems that are analogous to these cosmic entities. New theoretical calculations by a team in Canada, the US, UK and Israel have now revealed that a material as simple as a graphene flake with an irregular boundary subjected to an intense external magnetic field can be used to create a quantum hologram that faithfully reproduces some of the signature characteristics of a black hole. This is because the electrons in the carbon material behave according to the Sachdev-Ye-Kitaev model.

[...] [Marcel Franz:] "This model is an illustration of a type of 'holographic duality' in which a lower-dimensional system can be represented by a higher dimensional one. In our calculations, the former is N graphene electrons in (0+1) dimensions and the latter the dilation gravity of a black hole in (1+1) dimensional anti-de Sitter (AdS2) space."

Remarkably, this model accurately describes the physical characteristics of black holes for large values of N (larger than 100 ideally). These characteristics include non-zero residual entropy, and fast scrambling of quantum information at the black hole singularity (the region beyond which not even light can escape the tug of its gravity).

Quantum Holography in a Graphene Flake with an Irregular Boundary (DOI: 10.1103/PhysRevLett.121.036403) (DX)


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  • (Score: -1, Troll) by Anonymous Coward on Thursday August 02 2018, @01:01AM

    by Anonymous Coward on Thursday August 02 2018, @01:01AM (#715995)

    I am King of the Nigger Faggots.

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