Researchers suspect that wormholes could look almost identical to black holes

Researchers suspect that wormholes could look almost identical to black holes

Physical Check D (2022). DOI: 10.1103/PhysRevD.106.104024″ width=”800″ height=”530″/>
Polarization in a vertical magnetic field for wormholes with different redshift parameter α. Each color represents the observable polarization of the orbits at r=6M (outer ring) and r=4.5M (inner ring) for a given wormhole solution with α∈[0,3]. The polarization for the Schwarzschild black hole is indicated by a black dotted line for reference. The angle of inclination is θ = 20°. Recognition: Physical Check D (2022). DOI: 10.1103/PhysRevD.106.104024

A group of researchers at Sofia University has found evidence that the reason a wormhole has never been observed is because they appear almost identical to black holes.

In her article published in the journal physical examination D, Petya Nedkova, Galin Gyulchev, Stoytcho Yazadjiev and Valentin Delijski describe the study of the theoretical linear polarization of an accretion disk that would be around a class of static traversable wormholes and compared the results to black hole images.

For many years, scientists and science fiction writers have considered the theoretical possibility of a wormhole. Such an object, the theory goes, would take the form of a kind of tunnel connecting two different parts of the universe. Movement through the tunnel would allow travel to distant destinations in a way unavailable to starships that cannot travel faster than the speed of light – by taking a shortcut.

Unfortunately, no one has ever observed a wormhole or even any physical evidence that they actually exist. However, because the theory for their existence is so strong, astrophysicists assume they exist. The problem is that we either don’t have the technology to see them or haven’t looked for them properly.

In this new attempt, the researchers in Bulgaria suggest that the latter is the problem. They’ve found evidence through theory that suggests they might be sitting out there in the night sky in plain sight, and that the reason we don’t see them is because we mistake them for black holes.

The work involved studying wormhole theories and then applying the findings to creating simulations, with a focus on the polarity of the light that would be emitted by such an object – and also considering the properties of an assumed disc covering its mouth surrounds. They then created both direct and indirect images to represent what a wormhole would look like and compared them to black holes. They thought they looked remarkably alike.

The researchers concluded that it should be possible to distinguish wormholes from black holes by noting subtle differences between them, such as polarization patterns and intensities, and their radii.

More information:
Valentin Deliyski et al, Polarized image of equatorial emission in horizonless spacetimes: traversable wormholes, Physical Check D (2022). DOI: 10.1103/PhysRevD.106.104024

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