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Home»Science»Quantum Invisibility: Hiding Images in Plain Sight
Science

Quantum Invisibility: Hiding Images in Plain Sight

October 3, 2024No Comments3 Mins Read
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Researchers have developed a groundbreaking technique using quantum optics to encode visual information in a way that is invisible to standard cameras. By leveraging the spatial correlations of entangled photons, they have created a new method in quantum imaging that could revolutionize secure communication and imaging applications.

Physicists use quantum correlations of photons pairs to hide images from standard cameras
Fig. 1. Experimental results. a, Experimental setup. b, Intensity image on the camera and c, correlation image. The intensity image reveals no information about the object, which can nevertheless be seen in the correlation image. Credit: Chloé Vernière

Realizing the Power of Quantum Optics

A team of researchers at the Paris Institute of Nanoscience have recently discovered a new feature in quantum imaging. With this, they managed to encode pictures into correlations of polarizations of entangled photons so that they are invisible for an observer with a normal photo camera.

The secret to this process is in the special characteristics of entangled photons. Each of these light particles is entangled with the other in such a way that they seem to have highly correlated spatial degrees even though are separated by large distances By exploiting this quantum effect, the team can capture visual information that remains hidden right in front of conventional imaging technology.

Revealing the Hidden Image

Uncovering the invisible image involves combining a single-photon sensitive camera and custom algorithms that facilitate detection of photon coincidences – i.e. pairs of entangled photons arriving at the camera simultaneously. In doing so, the researchers will be able to reconstruct the original image by identifying these coincidences and then looking at their spatial correlations of the photon pairs.

This method is both convenient and versatile to integrate providing hope for wider practical applications. This could, the researchers say, allow them to produce many images encoded onto a single beam of entangled photons by adjusting the properties of both crystal and laser.

The possibilities that this technology extends to are virtually endless — from quantum super protected communication, disguised imaging through scattering (in the fog or biological tissue), you name it. As it turns out, quantum light is a lot more preferable to classical light for this application as it is much stronger and less prone to breakdown.

Conclusion

That could be a game-changer in quantum imaging, according to the researchers at the Paris Institute of Nanoscience who developed it. Using entangled photons to intercept the travel of light, they have developed a novel way to conceal visual data behind what looks like random noise, such that it cannot be captured by ordinary cameras. Applications for this technology may extend from secure communication and imaging through scattering media to other areas. And the implications for imaging and information-sharing could be immense, as the team continues to plumb what their quantum invisibility technique can do.

entangled photons imaging through scattering media quantum imaging quantum optics secure communication
jeffbinu
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Tech enthusiast by profession, passionate blogger by choice. When I'm not immersed in the world of technology, you'll find me crafting and sharing content on this blog. Here, I explore my diverse interests and insights, turning my free time into an opportunity to connect with like-minded readers.

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